SNAP-AIMA-I - OPTO 22 - Datasheet.Directory

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PAGE 1

DATA SHEET

Form 1065-190329

SNAP ANALOG INPUT MODULES

Features

Resolution = 0.004% of nominal range

Two, 4, 8, or 32 single-ended inputs per module

Out-of-range indication

Factory calibrated; no user adjustment necessary

DESCRIPTION

SNAP I/O analog input modules are part of Opto 22’s

SNAP PAC System. All of these modules mount on a SNAP

PAC rack with a SNAP PAC brain or R-series controller,

either a standard wired model or a Wired+Wireless™

model.

A minimum number of SNAP module types support a full

range of analog input requirements. These

software-configurable modules handle a wide variety of

signal levels. They provide high resolution (0.004% of

nominal range) for precise signal levels, as well as

multiple-channel packaging. All SNAP analog modules

are factory calibrated and individually tested. Part

numbers ending in -FM are Factory Mutual approved.

SNAP analog input modules have an on-board

microprocessor to provide module-level intelligence,

which makes them an ideal choice for Original Equipment

Manufacturers (OEMs). For additional information about

the standalone operation of SNAP analog modules, see

Opto 22 form #0876, SNAP I/O Module Integration Guide.

Notes for legacy hardware: Some of these modules

also work with older Opto 22 I/O processors (brains or

on-the-rack controllers) and M-series or B-series racks. To

check processor compatibility, see the table on page 3.

Specifications begin on page 4. For dimensional

drawings, see pages 40–51.

IMPORTANT: Any system using analog sensors and input

modules should be calibrated annually for analog signals.

For I/O units on a SNAP PAC System, use the PAC Control™

commands “Calculate and Set Offset” and “Calculate and

Set Gain.” For other Ethernet-based I/O units, you can also

use PAC Manager™ software to calculate and set offset

and gain.

Isolation

All SNAP analog input modules are isolated from all other

modules and from the SNAP I/O processor. The modules

>

>>

>

>SNAP Analog Input Modules

Part Numbers

Part Description Page

SNAP-AIARMS 2-channel 0 to 10 amp RMS AC/DC input 4

SNAP-AIMA 2-channel analog current input, -20 to +20 mA 6

SNAP-AIMA-4 4-channel analog current input -20 to +20 mA 6

SNAP-AIMA-8 8-channel analog current input -20 to +20 mA 9

SNAP-AIMA-32

SNAP-AIMA-32-FM* 32-channel analog current input -20 to +20 mA 10

SNAP-AIRATE 2-channel 0–25,000 Hz analog rate input 13

SNAP-AIR40K-4 4-channel analog resistor/thermistor input, 40 K Ohms,

20 K Ohms, 10 K Ohms, or 5 K Ohms 15

SNAP-AIR400K-8 8-channel analog resistor/thermistor input, 400 K Ohms 16

SNAP-AIRTD 2-channel 100 ohm platinum RTD input 20

SNAP-AIRTD-1K 2-channel 1000 ohm platinum RTD input 20

SNAP-AIRTD-10 2-channel 10 ohm copper RTD input 20

SNAP-AIRTD-8U 8-channel multifunction RTD/resistance input 22

SNAP-AICTD 2-channel analog temperature input, ICTD 25

SNAP-AICTD-4 4-channel analog temperature input, ICTD 25

SNAP-AICTD-8 8-channel analog temperature input, ICTD 27

SNAP-AITM 2-channel analog type E, J, or K thermocouple or -150

to +150 mV input or -75 to +75 mV input 28

SNAP-AITM-2 2-channel analog type B, C, D, G, N, T, R, or S thermo-

couple or -50 to +50 mV DC or -25 to +25 mV DC input 30

SNAP-AITM-8

SNAP-AITM-8-FM*

8-channel B, C, D, E, G, J, K, N, R, S, or T thermocou-

ple or -75 to +75 mV, -50 to +50 mV, or -25 to +25 mV

input

30

SNAP-AIVRMS 2-channel 0 to 250 V RMS AC/DC input 31

SNAP-AIV 2-channel analog voltage input -10 to +10 VDC or -5 to

+5 VDC 32

SNAP-AIV-4 4-channel analog voltage input -10 to +10 VDC or -5 to

+5 VDC 32

SNAP-AIV-8 8-channel analog voltage input -10 to +10 VDC or -5 to

+5 VDC 34

SNAP-AIV-32

SNAP-AIV-32-FM*

32-channel analog voltage input -10 to +10 VDC or -5

to +5 VDC 35

SNAP-AIMV2-4 4-channel -50 to +50 mV input or -25 to +25 mV input 37

SNAP-AIMV-4 4-channel -150 to +150 mV input or -75 to +75 mV input 38

* Factory Mutual approved

PAGE 2

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DATA SHEET

Form 1065-190329

in this data sheet do not have channel-to-channel isolation, however.

(If you need isolated analog modules, see Opto 22 form #1182.)

Transformer isolation prevents ground loop currents from flowing

between field devices and causing noise that produces erroneous

readings. Ground loop currents are caused when two grounded field

devices share a connection, and the ground potential at each device

is different.

Isolation also protects sensitive control electronics from industrial field

signals.

IMPORTANT: Since these analog input modules provide multiple

single-ended input channels with a common reference, the channels

are not isolated from each other. (See Opto 22 form #1182 for isolated

modules.)

Bipolar and Unipolar Input Modules

Most SNAP analog input modules are considered to be bipolar, which

means the range extends equal amounts above and below zero. An

example of this is the SNAP-AIV module, which has a range of -10 to

+10 VDC.

Some modules are considered unipolar, which means the range starts

or ends at zero. For example, the SNAP-AIVRMS module has a range of

0 to 250 VAC because AC current cannot be negative.

Nominal Range and Over-range Limits

All SNAP analog input modules have a nominal range for the field

signal and most support a 10% over-range limit. The nominal range is

the normal range of the field signal for the module or point

configuration. The over-range limit is the maximum valid field signal

the module or point configuration can read outside of the nominal

range. For example, the over-range limits for the SNAP-AIV are -11 and

+11 VDC, and for the SNAP-AIVRMS, the over-range limit is 275 VAC.

Some modules or point configurations do not support field signals

outside of the nominal range. For example, points configured as

temperature inputs (thermocouple, RTD, ICTD) do not support

over-range readings.

When the field signal is outside of the over-range limits of the

module, the brain will not be able to determine if the value is too high

or too low, so it will return an "out of range" value of -32768.0

Over-range limits only apply to input modules. Output modules are

limited to their nominal ranges.

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PAGE 3

DATA SHEET

Form 1065-190329

INSTALLATION

Note module and processor compatibility in the following table:

All modules can be used with SNAP PAC racks and can be placed in

any position on the rack. Two- and four-channel modules (except the

SNAP-AIRTD-10 and SNAP-AIRTD-1K) can also be used with legacy

SNAP M-series and B-series mounting racks. (For more information on

using legacy hardware, see form #1688, the SNAP PAC System

Migration Technical Note.)

Modules snap securely into place in the row of connectors on the

mounting rack. Each module connector has a number. Analog input

modules and other types of SNAP I/O modules are mounted on the

module connectors starting at module position zero.

Modules require a special tool (provided) for removal.

The following diagram shows part of a SNAP PAC mounting rack.

1. Place the rack so that the module connector numbers are

right-side up, with zero on the left, as shown in the diagram

above. (If your rack has screw connectors, the screw connectors

will be at the bottom.)

2. Position the module over the module connector, aligning the

small slot at the base of the module with the retention bar on the

rack. When positioning modules next to each other, be sure to

align the male and female module keys at the tops of the

modules before snapping a module into position.

3. With the module correctly aligned, push on the module to snap it

into place.

4. Use standard 4-40 x 1/2 truss-head Phillips hold-down screws to

secure both sides of each module.

CAUTION: Do not over-tighten screws. See Specifications.

5. Follow the wiring diagrams beginning on page 4 to attach

modules to the devices they monitor. Most modules accept 22 to

14 AWG wire; the SNAP-AITM-8 accepts a maximum of two solid

18 AWG wires.

For faster, easier field wiring installation and maintenance, use

SNAP TEX cables and breakout boards. See Opto 22 form #1756, the

SNAP TEX Cables & Breakout Boards Data Sheet, for compatibility and

specifications.

Modules Compatible I/O Processors

32-channel inputs

8-channel inputs

SNAP-AIRTD-10

SNAP-AIRTD-1K

SNAP PAC R-series controllers and SNAP

PAC brains, including Wired+Wireless mod-

els

4-channel inputs

SNAP PAC R-series controllers and SNAP

PAC brains, including Wired+Wireless mod-

els

Also the following legacy brains:

SNAP Ethernet, SNAP Simple, SNAP Ulti-

mate; SNAP-DNP-ASDS; SNAP OEM

2-channel inputs

(except

SNAP-AIRTD-10 and

SNAP-AIRTD-1K)

SNAP PAC R-series controllers and SNAP

PAC brains, including Wired+Wireless mod-

els

Also the following legacy brains:

SNAP Ethernet, SNAP Simple, SNAP Ulti-

mate; SNAP-DNP-ASDS; SNAP OEM; serial

SNAP brains (B3000, Modbus, Profibus);

B3000-HA; B6

Module

position zero

Module connectors

Processor

connector Retention bar

PAGE 4

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DATA SHEET

Form 1065-190329

0 TO 10 AMP RMS AC/DC INPUT MODULE

SNAP-AIARMS

Description

The SNAP-AIARMS module provides an input range of 0 to 10 amps

RMS AC/DC. An ideal input is the 5-amp secondary of a standard

current transformer used to monitor AC line current.

The SNAP-AIARMS module may be used to monitor AC current to

greater than a 100-amp range, using a current transformer of suitable

ratio.

If you need a module with channel-to-channel isolation, see form

#1182, the SNAP Isolated Analog Input Modules Data Sheet.

Wiring diagrams are on the following page.

Specifications

Part Number Description

SNAP-AIARMS Two-channel 0 to 10 amp RMS AC/DC input

Input Range 0 to 10 amp RMS AC/DC

Input Over-Range To 11 amps

Input Resistance 0.005 ohms

Maximum Input 11 amps AC/DC

Accuracy (AC) ±8 mA and ±0.2% reading

Resolution 400 microamps

DC Reversal ±16 mA (0.16%)

Input Response Time

(Step Change)

63.2% (158 V) in 50 mS

99% (248 V) in 75 mS

Data Freshness (Max) 32.3 ms

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB at 60 Hz

Maximum Operating Common

Mode Voltage 250 V

Isolation 1500 V

Power Requirements 5 VDC (±0.15 V) at 170 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

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PAGE 5

DATA SHEET

Form 1065-190329

0 TO 10 AMP RMS AC/DC INPUT MODULE (CONTINUED)

SNAP-AIARMS Wiring Diagrams

Two possible wiring diagrams are shown below.

* Terminals 3, 4, 7, and 8 share a common

connection inside the module. Make sure

you observe polarity when connecting the

second channel. To avoid a potentially

hazardous short, double-check wiring before

turning on the current to be monitored.

PAGE 6

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DATA SHEET

Form 1065-190329

CURRENT INPUT MODULE, -20 mA TO +20 mA, TWO OR FOUR CHANNELS

SNAP-AIMA and SNAP-AIMA-4

Description

The SNAP-AIMA and SNAP-AIMA-4 modules provide an input range of

-20mA to +20mA. The SNAP-AIMA has two channels, and the

SNAP-AIMA-4 has four. If you need a similar module with more

channels, see page 10. Check the table on page 3 for I/O processor

compatibility. These modules DO NOT supply loop excitation current.

Since all inputs share a common reference, the module must be

installed at the beginning or end of a typical 4–20mA loop. If you are

using both standard and self-sourcing transmitters, either put the

transmitters on different modules or use different power supplies. If

you need channels that are isolated from each other on the same

module, see Opto 22 form #1182.

Wiring diagrams are on the following page.

Specifications

Part Number Description

SNAP-AIMA Two-channel analog current input,

-20 mA to +20 mA

SNAP-AIMA-4 Four-channel analog current input,

-20 mA to +20 mA

Input Range -20 mA to +20 mA

Resolution 0.8 microamps

Over-Range Limits From -22 to +22 mA

(+/-20 mA range)

Input Response Time

(% of span/ delta I/delta tme) 99.9% / 19.9 mA / 10 ms

Data Freshness (Max) SNAP-AIMA: 11.5 ms

SNAP-AIMA-4: 23 ms

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Survivable Input 36 mA or 9 VDC

Maximum Operating Common

Mode Voltage 250 V

Accuracy 0.05% (10 microamps)

DRIFT: Gain Temperature

Coefficient 30 PPM/ °C

DRIFT: Offset Temperature

Coefficient 15 PPM/ °C

Power Requirements 5 VDC (±0.15 ) @ 170 mA

Input Resistance - Single

Ended 200 ohms (each channel)

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Wire size 22 to 14 AWG

Agency Approvals UL, FM, CE, RoHS, DFARS

ATEX (SNAP-AIMA-4 only)

Warranty Lifetime

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DATA SHEET

Form 1065-190329

CURRENT INPUT MODULE, -20 MA TO +20 MA, TWO OR FOUR CHANNELS (CONTINUED)

SNAP-AIMA Wiring (Two channels)

SNAP-AIMA-4 Wiring (Four channels)

PAGE 8

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DATA SHEET

Form 1065-190329

CURRENT INPUT MODULE, -20 mA TO +20 mA, TWO OR FOUR CHANNELS (CONTINUED)

SNAP-AIMA Wiring: Positive Common vs. Negative Common Connections

The following diagrams apply to SNAP-AIMA-2, SNAP-AIMA-4, and SNAP-AIMA-8 modules.

SNAP-AIMA

For transmitters sharing the minus side of the loop

supply. Note that input current will be read as a

negative current.

SNAP-AIMA

For transmitters sharing the plus side of the loop

supply. Note that input current will be read as a

positive current.

NOTE: Even-numbered terminals share a

common reference where applicable.

NOTE: Even-numbered terminals share a

common reference where applicable.

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DATA SHEET

Form 1065-190329

CURRENT INPUT MODULE, -20 mA TO +20 mA, EIGHT CHANNELS

SNAP-AIMA-8

Description

The SNAP-AIMA-8 module provides an input range of -20mA to

+20mA with eight channels of analog current input. (If you need a

similar module with 32 channels, see page 10.) The SNAP-AIMA-8 can

be used with SNAP PAC brains and rack-mounted controllers only.

These modules DO NOT supply loop excitation current.

Since all inputs share a common reference, the module must be

installed at the beginning or end of a typical 4–20mA loop. If you are

using both standard and self-sourcing transmitters, either put the

transmitters on different modules or use different power supplies. If

you need channels that are isolated from each other on the same

module, see Opto 22 form #1182.

If you have multiple self-sourcing transmitters that share the same

positive common, do not use this module. Use the SNAP-AIMA-i

module instead. See Opto 22 form #1182.

Specifications

4-20 self-powered

(self-sourcing) transmitters

Current Source

NOTE: Terminals 2, 4, 6, and 8 on both

connectors are connected internally.

NOTE: For transmitters sharing the plus side of the loop power supply, the

input current will be read as a positive current.

External loop

power supply

See additional wiring diagrams on page 8.

CH 2CH 1CH 0 CH 3

T

1

23 45 67 8

T TT

T

2345678

1

2345678

CH 4

CH 5 CH 6

CH 7

TTT

OR

Part Number Description

SNAP-AIMA-8 Eight-channel analog current input, -20 mA to

+20 mA

Input Range -20 mA to +20 mA

Over-Range Limits From -22 to +22 mA

(+/-20 mA range)

Resolution 0.8 microamps

Data Freshness (Max) 0.28 seconds

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Survivable Input 36 mA or 9 VDC

Maximum Operating Common

Mode Voltage 250 V

Accuracy 0.05% (10 microamps)

DRIFT: Gain Temperature

Coefficient 30 PPM/ °C

DRIFT: Offset Temperature

Coefficient 15 PPM/ °C

Isolation 1500 V

Power Requirements 5 VDC (±0.15 ) @ 170 mA

Input Resistance - Single

Ended

100 ohms (all channels share

the same reference point)

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 1.7 in-lb (0.19 N-m)

Agency Approvals CE, RoHS, DFARS

Warranty Lifetime

PAGE 10

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DATA SHEET

Form 1065-190329

CURRENT INPUT MODULE, -20 MA TO +20 MA, 32 CHANNELS

SNAP-AIMA-32 and SNAP-AIMA-32-FM

Description

The SNAP-AIMA-32 and SNAP-AIMA-32-FM modules provide 32

channels of input with an input range of -20mA to +20mA. The

SNAP-AIMA-32-FM is Factory Mutual approved. Check the table on

page 3 for I/O processor compatibility. Dimensional drawings are on

page 45.

These modules DO NOT supply loop excitation current.

Channels are not isolated from each other. Since all inputs share a

common reference, the module must be installed at the beginning or

end of a typical 4–20 mA loop. If you use both standard and

self-sourcing transmitters, put the transmitters on different modules

or use different power supplies. (If you need channels that are isolated

from each other on the same module, see Opto 22 form #1182.)

Specifications

Part Number Description

SNAP-AIMA-32

SNAP-AIMA-32-FM

32-channel analog current input,

-20 mA to +20 mA

SNAP-HD-BF6 Wiring harness for SNAP-AIMA-32 modules

and breakout racks

SNAP-AIMA-HDB

SNAP-AIMA-HDB-FM

Breakout racks for SNAP-AIMA-32 and

SNAP-AIMA-32-FM

Input Range -20 mA to +20 mA

Over-Range Limits From -22 to +22 mA

(+/-20 mA range)

Resolution 0.8 microamps

Input Filtering -3 dB @ 31 Hz

Data Freshness (Max) 1.15 s

DC Common Mode Rejec-

tion >-120 dB

AC Common Mode Rejec-

tion >-120 dB @ 60 Hz

Maximum Survivable Input 36 mA or 9 VDC

Maximum Operating Com-

mon Mode Voltage 250 V

Accuracy 0.1% (20 microamps)

DRIFT: Gain Temperature

Coefficient 30 PPM/ °C

DRIFT: Offset Temperature

Coefficient 15 PPM/ °C

Isolation 1500 V, field to logic

Power Requirements 5 VDC (±0.15 ) @ 150 mA

Input Resistance - Single

Ended 100 ohms (each channel)

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals

SNAP-AIMA-32: UL, CE, RoHS,

DFARS.

SNAP-AIMA-32-FM: CE, FM,

RoHS, DFARS

Warranty Lifetime

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PAGE 11

DATA SHEET

Form 1065-190329

Wiring

SNAP TEX cables and a breakout rack are available separately for

wiring points to field devices (see form #1756, the SNAP TEX Cables &

Breakout Boards Data Sheet). The SNAP-HD-BF6 cable connects the

module to the breakout rack, which can then be wired to field

devices. (NOTE: The SNAP-HD-CBF6 wiring harness with flying leads is

not recommended for this module.)

CAUTION: We strongly recommend that you use the breakout rack

with these modules. Miswiring of any point on the module can cause

severe out-of-warranty damage. The breakout rack protects the

module from many wiring errors.

if you are using the module with loop power (2-wire) negative

common devices, connect to the SNAP-AIMA-HDB (or -FM) rack. If you

are using the module with self-powered devices (4-wire) or with

devices that share a common positive connection, do not use the

SNAP-AIMA-HDB (or -FM) boards, which have a current limiting diode.

Instead, wire to the SNAP-AIV-HDB or SNAP-AIV-HDB-FM.

Correcting for Inverted Scaling

Positive readings for these modules appear as negative values.

Therefore, in order to obtain meaningful readings, use the scaling

feature in PAC Control as follows:

1. In the Add or Edit Analog Point dialog box for each point, choose

the scalable version of the module.

2. Under Scaling, scale each point negatively as shown below:

PAGE 12

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DATA SHEET

Form 1065-190329

CURRENT INPUT MODULE, -20 mA TO +20 mA, 32 CHANNELS (CONTINUED)

Wiring diagram: SNAP-AIMA-HDB breakout rack to SNAP-AIMA-32 module

NOTE: This diagram also applies to the SNAP-AIMA-HDB-FM rack and the SNAP-AIMA-32-FM module.

Use with loop power (2-wire) negative common devices only.

For self-powered (4-wire) devices, see page 36.

For positive common devices, see page 39.

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PAGE 13

DATA SHEET

Form 1065-190329

0 TO 25,000 Hz ANALOG RATE INPUT MODULE

SNAP-AIRATE

Description

The SNAP-AIRATE module provides two channels of

frequency-to-digital conversion. The nominal input range is 0 to

25,000 Hz with an over-range capability to 27,500 Hz. Nine volts

through a 4.7 K ohm pull-up resistor are provided internally for use

with devices that have open collector outputs. This feature eliminates

the need for the user to provide the pull-up voltage supply and

associated wiring, barrier strips, etc.

The module works with TTL, CMOS, and open collector outputs. Truly

a two-wire hookup, the SNAP-AIRATE module is ideally suited for use

with a tachometer.

Please note that this module does not provide channel-to-channel

isolation. If you need isolated channels, see the SNAP Isolated Analog

Input Modules Data Sheet, form 1182.

Specifications

Number Description

SNAP-AIRATE 0–25,000 Hz analog rate input

Nominal Input Range 0 to 25,000 Hz

Input Over-Range To 27,500 Hz

Resolution 1 Hz

Input Response Time(% of

span / delta Hz / delta time)

10.0% / 2,500 Hz / 0.1 sec

63.2% / 15.8 K Hz / 0.9 sec

99.0% / 24.75 K Hz / 4.2 sec

Data Freshness (Max) 126 ms

DC Common Mode Rejection > -120 dB

AC Common Mode Rejection > -120 dB at 60 Hz

Maximum Operating Common

Mode Voltage 250 V

Accuracy (% full scale) ±4 Hz or ±0.5% of the input fre-

quency (whichever is greater)

Drift: Gain Temperature Coeffi-

cient 200 ppm / °C

Drift: Offset Temperature Coef-

ficient 50 ppm / °C

Input Coupling Single-ended AC (capacitor

coupled)

Input Amplitude

Sine wave

Square wave

2.5 V to 24 V p-p

0.5 V to 24 V p-p

Minimum Pulse Width 18 microseconds

Input Impedance (Inputs share

the same reference point.)

Pull-up Voltage

Pull-up Resistor

50 K ohms AC coupled

(-input to +input)

6 to 9 V

4.7 K ohms

Isolation 1500 V

Power Requirements 5 VDC (±0.15 V) at 190 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

PAGE 14

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DATA SHEET

Form 1065-190329

0 TO 25,000 Hz ANALOG RATE INPUT MODULE (CONTINUED)

S

NAP-AIRATE Wiring Diagrams

NOTE: This module does not provide channel-to-channel isolation.

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PAGE 15

DATA SHEET

Form 1065-190329

THERMISTOR INPUT MODULE 0–40 K, 0–20 K, 0–10 K, OR 0–5 K OHM

SNAP-AIR40K-4

Description

The SNAP-AIR40K-4 module provides four channels of analog to

digital conversion, ideal for thermistors used in HVAC applications or

for reading the resistance of potentiometer input. See the table on

page 3 for I/O processor compatibility.

The default input range is 0 to 40 K Ohms. The module can also be

configured for 0 to 20 K, 0 to 10 K, or 0 to 5 K Ohms.

NOTE: Resistance probes must be isolated from each other.

Specifications

IMPORTANT: The mounting rack connector has 24 pins; the module

connector has 20 pins. The extra pins on the mounting rack

connector prevent misalignment of the module during installation.

Part Number Description

SNAP-AIR40K-4 Four-channel analog resistor/thermistor input, 40 K

Ohms, 20 K Ohms, 10 K Ohms, or 5 K Ohms

Input Range

0 to 40,000 Ohms

0 to 20,000 Ohms

0 to 10,000 Ohms

0 to 5,000 Ohms

Maximum Over-Range

44 K (40 K Ohms range)

22 K (20 K Ohms range)

11 K (10 K Ohms range)

5.5 K (5 K Ohms range)

Resolution

1.6 Ohm @ 40 K Ohms

0.8 Ohm @ 20 K Ohms

0.4 Ohm @ 10 K Ohms

0.2 Ohm @ 5 K Ohms

Input Filtering -3 dB @ 3.2 Hz

Data Freshness (Max)

100 (40 K Ohms)

200 (20 K Ohms)

400 (10 K Ohms)

800 (5 K Ohms)

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Operating

Common Mode Voltage 250 V

Accuracy

0.1% ± 40 Ohms @ 40 K Ohms

0.1% ± 20 Ohms @ 20 K Ohms

0.1% ± 10 Ohms @ 10 K Ohms

0.1% ± 5 Ohms @ 5 K Ohms

DRIFT: Gain Temperature

Coefficient 30 PPM/ °C

DRIFT: Offset Temperature

Coefficient 15 PPM/ °C

Isolation 1500 V

Power Requirements 5 VDC (±0.15 ) @ 190 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

PAGE 16

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DATA SHEET

Form 1065-190329

THERMISTOR INPUT MODULE 0–400 K, 0–200 K, 0–100 K, 0–50 K, 0–40 K, 0–20 K,

0–10 K, 0–5 K, 0–4 K, 0–2 K, 0–1 K, 0–500 OHM

SNAP-AIR400K-8

Description

The SNAP-AIR400K-8 module has eight channels of analog to digital

conversion that convert resistance to temperature or to Ohms. The

module is ideal for NTC thermisters commonly used in HVAC,

refrigeration, and process control applications. It may also be used

with PTC thermisters in resistance sensing applications. See the table

on page 3 for I/O processor compatibility.

The SNAP-AIR400K-8 reads variable resistance type transducers, and it

has 12 resistance input ranges from 500 Ohms to 400 K Ohms, plus

Autorange. Range dependent resolution is from 20 milliOhms to 16

Ohms.

SNAP PAC brains and PAC Control provide direct temperature readings

for four popular thermistors using the Steinhart-Hart equation (see

page 19). You may also enter custom coefficients for unsupported

thermistor curves.

The simple two-wire connections are made to the pluggable terminal

strip on top of the module.

NOTE: The eight input channels must be electrically isolated from each

other and earth ground. The transducer resistor element must be isolated

from any electrically conducting probe tube housing.

See page 17 for module specifications.

Wiring Information

Unshielded 24 AWG wire (minimum) is recommended.

IMPORTANT: The mounting rack connector has 24 pins; the module

connector has 20 pins. The extra pins on the mounting rack

connector prevent misalignment of the module during installation.

NTC thermistor

Variable resistance device

Part Number Description

SNAP-AIR400K-8

Eight channel analog resistor/thermistor input,

400 K Ohms, 200 K Ohms,

100 K Ohms, 50 K Ohms, 40 K Ohms,

20 K Ohms, 10 K Ohms, 5 K Ohms,

4 K Ohms, 2 K Ohms, 1 K Ohms, 500 Ohms

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PAGE 17

DATA SHEET

Form 1065-190329

THERMISTOR INPUT MODULE 0–400 K (CONTINUED)

Specifications

Input Ranges 400 K, 200 K, 100 K, 50 K, 40 K, 20 K, 10 K, 5 K , 4 K, 2 K, 1 K, 500 Ohms, and Autorange

Resolution Resolution

16 Ohm

8 Ohm

4 Ohm

2 Ohm

Range

0 to 400 kOhms

0 to 200 kOhms

0 to 100 kOhms

0 to 50 kOhms

Resolution

1.6 Ohm

0.8 Ohm

0.4 Ohm

0.2 Ohm

Range

0 to 40 kOhms

0 to 20 kOhms

0 to 10 kOhms

0 to 5 kOhms

Resolution

0.16 Ohm

0.08 Ohm

0.04 Ohm

0.02 Ohm

Range

0 to 4 kOhms

0 to 2 kOhms

0 to 1 kOhms

0 to 500 Ohms

Accuracy

(Ohms @ Range)

0.1% Reading

+ 2x Range Resolution

+ 1 Ohm

400 Ohms @ 400 K

200 Ohms @ 200 K

100 Ohms @ 100 K

0 Ohms @ 50 K

40 Ohms @ 40 K

20 Ohms @ 20 K

10 Ohms @ 10 K

5 Ohms @ 5 K

4 Ohms @ 4 K

2 Ohms @ 2 K

1 Ohms @ 1 K

0.5 Ohms @ 500

Data Freshness 1.61 seconds maximum

DSP Notch Filter 20 Hz (- 3DB = 5.24 Hz)

Excitation Current Nominal (Range

& Load Watts Dissipation)

9uA (50 K–4.1 uW), (100 K–8.1 uW), (200 K–16 uW), (400 K–32 uW)

90uA (5 K–40 uW), (10 K–81 uW), (20 K–160 uW), (40 K–320 uW)

200uA (500 K–20 uW), (1 K–40 uW), (2 K–80 uW), (4 K–160 uW)

Autorange Step Time 1.6 seconds to next higher or lower range

>= 10 seconds for a 500 Ohms to 400 K Ohms step change

Autorange Ohms Hysteresis

Ranges

Ohms Open > 440K

20K between 200K & 400K

10K between 100K & 200K

5K between 50K & 100K

19K between 40K & 50K

2K between 20K & 40K

1K between 10K & 20K

500 between 5K & 10K

Ohms Open > 440K

1.9K between 4K & 5K

200 between 2K & 4K

100 between 1K & 2K

50 between 500 & 1K

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Open Resistor Indicator Channel resistance = 999,999.999 Ohms

PAC Control Reads temperature reading or -32768 Ohms if over or under range

Maximum Operating Common

Mode Voltage

(Field Term to Logic Connector)

500 VDC or peak VAC

Drift

Gain Tempco

Offset Tempco

30 PPM / °C

15 PPM / °C

Power Requirements 5 VDC (±0.15 ) @ 190 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Torque, hold-down screws 4 in-lb (0.45 N-m)

Humidity 5-95%, non-condensing

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, CE

Warranty Lifetime

PAGE 18

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DATA SHEET

Form 1065-190329

THERMISTOR INPUT MODULE 0–400 K (CONTINUED)

Auto-range Curves

The following table shows temperatures in °C and °F that correlate

with resistance values in Ohms for the generic curve types for four

popular thermistors using the Steinhart-Hart equation. Choose the

curve type for your application in PAC Control or PAC Manager when

you configure a SNAP-AIR400K-8 module. (For custom curves, see

page 19.)

Choose a 2-wire thermistor value with a resistance over the target

temperature range that is much larger than the lead resistance for

your application

Lower value curves (2252 or 3K) work best at cooler temperatures (<

25 °C or 77 °F) because long lead wire resistance can add significant

errors to the measurement.

SNAP-AIR400K-8 Auto-range Curves Table

2252 curve 3K curve 10K type 3 curve 10K type 2 curve

Temp °C Temp °F Resistance (Ohms)

-40 -40 75,769.0 100,935.0 239,686.0 336,450.0

-35 -31 54,647.0 72,798.0 179,200.0 242,660.0

-30 -22 39,851.0 53,088.0 135,185.0 176,960.0

-25 -13 29,368.0 39,123.0 102,861.0 130,410.0

-20 -4 21,861.0 29,122.0 78,913.0 97,072.0

-15 5 16,429.0 21,885.0 61,020.0 72,951.0

-10 14 12,459.0 16,598.0 47,543.0 55,326.0

-5 23 9,532.0 12,698.0 37,313.0 42,326.0

0 32 7,353.0 9,795.0 29,490.0 32,650.0

5 41 5,718.0 7,617.0 23,457.0 25,391.0

10 50 4,481.0 5,970.0 18,780.0 19,899.0

15 59 3,538.0 4,713.0 15,130.0 15,711.0

20 68 2,813.0 3,748.0 12,263.0 12,492.0

25 77 2,252.0 3,000.0 10,000.0 10,000.0

30 86 1,814.0 2,417.0 8,194.0 8,057.0

35 95 1,471.0 1,959.0 6,752.0 6,531.0

40 104 1,200.0 1,598.0 5,592.0 5,326.0

45 113 983.8 1,311.0 4,655.0 4,368.0

50 122 811.2 1,081.0 3,893.0 3,602.0

55 131 672.5 895.8 3,271.0 2,986.0

60 140 560.3 746.3 2,760.0 2,488.0

65 149 469.0 624.8 2,339.0 2,083.0

70 158 394.5 525.5 1,990.0 1,752.0

75 167 333.1 443.8 1,700.0 1,479.0

80 176 282.7 376.6 1,458.0 1,255.0

85 185 240.9 320.9 1,255.0 1,070.0

90 194 206.2 274.6 1,084.0 915.4

95 203 177.1 236.0 939.3 786.6

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PAGE 19

DATA SHEET

Form 1065-190329

Custom Curves

To configure the SNAP-AIR400K-8 with custom curves, follow these

steps:

1. Configure the I/O unit in PAC Control, PAC Manager, or EtherNet/IP

Configurator, and save the configuration to flash memory.

2. Open PAC Manager and choose Tools > Inspect.

3. In the Device Name field, enter the I/O unit's IP address. Click the

Point Config button in the left navigation.

4. Choose the module number and point number you want to

configure.

5. Click in the Value column next to Point Type and choose

Temperature from the dropdown menu.

6. Scroll down and click the Value column next to Thermistor Curve.

Choose Unknown.

7. For each coefficient (A, B, K, C), click the Value column and enter

your custom coefficient.

8. Click the Apply button at right.

9. Save the configuration to flash memory: Click the Status Write

button, under Operation highlight Store configuration to flash,

and click Send Command.

100 212 152.8 203.6 816.8 678.6

105 221 132.3 176.3 712.6 587.6

110 230 115.0 153.2 623.6 510.6

115 239 100.3 133.6 547.3 445.2

120 248 87.7 116.9 481.8 389.6

125 257 77.0 102.6 425.3 341.9

130 266 67.8 90.3 376.4 301.0

135 275 59.9 79.7 334.0 265.8

140 284 53.0 70.6 297.2 235.4

145 293 47.1 62.7 265.1 209.0

150 302 41.9 55.8 237.0 186.1

The information in this table is provided by Automation Components, Inc.

2252 curve 3K curve 10K type 3 curve 10K type 2 curve

Temp °C Temp °F Resistance (Ohms)

PAGE 20

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DATA SHEET

Form 1065-190329

RTD INPUT MODULES

SNAP-AIRTD, SNAP-AIRTD-1K, and SNAP-AIRTD-10

Description

The SNAP-AIRTD and SNAP-AIRTD-1K platinum and the

SNAP-AIRTD-10 copper modules are usually used for temperature

inputs. They can also be used to make high-resolution resistance

measurements.

On all three modules, the two inputs share the same reference

terminal. Make sure you use isolated RTD probes.

The SNAP-AIRTD-10 and SNAP-AIRTD-1K require a SNAP PAC brain or

R-series controller.

Also see the SNAP-AIRTD-8U module on page 22.

Wiring

RTD input modules are designed for three-wire connections, shown

in the diagram below.

If you use a four-wire

connection (shown at

the bottom right), DO

NOT connect the fourth

wire, as it will cause

errors in the readings.

Two-wire connections

are not recommended,

as they will degrade

accuracy and stability.

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

Part Number Description

SNAP-AIRTD-1K Two-channel 1000 ohm platinum RTD input

SNAP-AIRTD Two-channel 100 ohm platinum RTD input

SNAP-AIRTD-10 Two-channel 10 ohm copper RTD input

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PAGE 21

DATA SHEET

Form 1065-190329

RTD INPUT MODULES (CONTINUED)

Specifications

SNAP-AIRTD-1K SNAP-AIRTD SNAP-AIRTD-10

3-wire RTD input

1000 ohm platinum @ 0 °C

= 0.00385

1000 ohm nickel @ 0 °C

= 0.00618

1000 ohm nickel @ 70 °F

= 0.00637

100 ohm platinum; = 0.00385

100 ohm nickel, -60 to 250 °C

120 ohm nickel, -80 to 260 °C

10 ohm copper; = 0.00428

Input Temperature Range -200 °C to 850 °C

(-328° to +1,582° F)

-200 °C to 850 °C

(-328° to +1,582° F)

-180 °C to 260 °C

(-292° to +500° F)

Input Range 0 to 4000 ohms 0 to 400 ohms 0 to 25 ohms

Over-Range Limit to 4400 ohms to 440 ohms to 27.5 ohms

Resolution (average) 0.042 °C (0.16 ohms) 0.042 °C (0.016 ohms) 0.026 °C (0.001 ohms)

Input Filtering -3 dB @ 0.1 Hz -3 dB @ 0.1 Hz -3 dB @ 100 Hz

Data Freshness (Max) 100 ms 100 ms 168 ms

Lead Compensation Automatic when used with

SNAP brains

Automatic when used with

SNAP brains

Automatic when used with

SNAP PAC brains

DC Common Mode Rejection >-120 dB >-120 dB >-120 dB

AC Common Mode Rejection >-120 dB at 60 Hz >-120 dB at 60 Hz >-120 dB at 60 Hz

Excitation (typical) 0.256 mA constant current 1.25 mA constant current 5.4 mA constant current

Maximum Lead Resistance 40 ohms single wire (all leads

to be equal resistance)

40 ohms single wire (all leads to

be equal resistance)

15 ohms single wire (all leads

to be equal resistance)

Maximum Fault Voltage at Input

(between any 2 field wires) ±15 V ±15 V ±15 V

Maximum Operating Common

Mode Voltage 250 V 250 V 250 V

Accuracy

From factory

After setting gain and offset

0.8 °C

0.6 °C

0.8 °C

0.6 °C

0.5 °C

Isolation 1500 V 1500 V 1500 V

Power Requirements 5.00 to 5.20 VDC @ 190 mA 5.00 to 5.20 VDC @ 190 mA 5.00 to 5.20 VDC @ 190 mA

Operating Temperature -20 °C to 70 °C -20 °C to 70 °C -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C -40 °C to 85 °C -40 °C to 85 °C

Wire size 22 to 14 AWG 22 to 14 AWG 22 to 14 AWG

Humidity 5-95%, non-condensing 5-95%, non-condensing 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m) 4 in-lb (0.45 N-m) 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m) 5.26 in-lb (0.6 N-m) 5.26 in-lb (0.6 N-m)

Agency Approvals CE, RoHS, DFARS UL, FM, CE, RoHS, DFARS CE, RoHS, DFARS

Warranty Lifetime Lifetime Lifetime

PAGE 22

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DATA SHEET

Form 1065-190329

RTD INPUT MODULES (CONTINUED)

SNAP-AIRTD-8U

Description

The SNAP-AIRTD-8U provides 8 input channels, each individually

software configurable. This module is commonly used for 3-wire RTD

temperature inputs but is

also suited to

high-resolution resistance

measurements. It features

open circuit detection if any

wire breaks.

All 8 inputs share the same

reference terminal. Make

sure you use isolated RTD

probes.

The SNAP-AIRTD-8U

requires a SNAP PAC brain

or R-series controller with

firmware R9.5a or higher. The module cannot be used with legacy

brains or controllers.

Point Configuration

See table at right. You can individually configure each of the module’s

8 points for a variety of behaviors:

• Temperature—Range is fixed. Default range is 0–8000 ohms.

Choose nickel, platinum, or copper RTD input. The data returned

is degrees C or degrees F, depending on your choice for the I/O

unit.

• Fixed-range (default)—Choose the range you want to use. If the

value goes above the limit for that range, an out-of-range value

(16-bit) of –32768 is displayed. The data returned is resistance in

ohms.

• Full Auto-range—The module scrolls up and down the entire

set of ranges and dynamically chooses the appropriate range for

best resolution. Note that this point type can result in higher

latency when ranging up (see Specifications on next page). The

data returned is resistance in ohms.

• Auto-range Down—The module scrolls down and up within the

specified range limit. If the value goes above the specified range,

an out-of-range value (16-bit) of –32768 is displayed. These point

types allow auto-ranging within the selected range but limit the

data latency when ranging up. The data returned is resistance in

ohms.

Point Configuration (continued)

Point configuration choices for each of the 8 inputs (default is

highlighted in gray):

Point Type Range*

1k Ohm at 70 °F Ni -46 to +148.9 °C

1k Ohm at 0 °C Ni -40 to +135 °C

1k Ohm Pt -200 to +850 °C

120 Ohm Ni -80 to +260 °C

100 Ohm Ni -60 to +250 °C

100 Ohm Pt -200 to +850 °C

10 Ohm Cu -60 to +355 °C

Fixed-range (Default) 0 - 8000 Ohms

Fixed-range 0 - 4000 Ohms

Fixed-range 0 - 2000 Ohms

Fixed-range 0 - 1000 Ohms

Fixed-range 0 - 800 Ohms

Fixed-range 0 - 400 Ohms

Fixed-range 0 - 200 Ohms

Fixed-range 0 - 100 Ohms

Fixed-range 0 - 80 Ohms

Fixed-range 0 - 40 Ohms

Fixed-range 0 - 20 Ohms

Fixed-range 0 - 10 Ohms

Full Auto-range 0 - 8000 Ohms

Auto-range Down 0 - 4000 Ohms

Auto-range Down 0 - 2000 Ohms

Auto-range Down 0 - 1000 Ohms

Auto-range Down 0 - 800 Ohms

Auto-range Down 0 - 400 Ohms

Auto-range Down 0 - 200 Ohms

Auto-range Down 0 - 100 Ohms

Auto-range Down 0 - 80 Ohms

Auto-range Down 0 - 40 Ohms

Auto-range Down 0 - 20 Ohms

Auto-range Down 0 - 10 Ohms

* Maximum range; actual range depends on your probe.

Part Number Description

SNAP-AIRTD-8U 8-channel multifunction 3-wire RTD/resis-

tance input

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PAGE 23

DATA SHEET

Form 1065-190329

RTD INPUT MODULES (CONTINUED)

Wiring

The SNAP-AIRTD-8U has a plug-in terminal on top with spring-clamp

connectors for easy wiring. An insertion tool is provided in the box

with the module.

For each connection:

1. Insert the tool in the small square hole and push down.

2. Push the wire firmly into the rectangular hole below the tool, and

then remove the tool.

The module is designed for 3-wire RTDs, shown below. All wires must

be the same size. If you use a 4-wire connection, DO NOT connect the

fourth wire, as it will cause errors in the readings. If you use 2-wire

RTDs (not recommended because measurement is less accurate), you

must jumper terminal 2 to 3 for each applicable RTD channel.

A Note on Calibration

Because the SNAP-AIRTD-8U uses intermittent excitation current for

measurements, it cannot be used with RTD calibrators that require a

steady excitation current.

Insert tool here and push down.

Insert wire here and remove tool.

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

PAGE 24

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DATA SHEET

Form 1065-190329

RTD INPUT MODULES (CONTINUED)

Specifications

SNAP-AIRTD-8U

3-wire RTD input and maximum temperature

table range (actual range depends on your

probe)

1000 ohm platinum @ 0 °C

= 0.00385

Range: -200 to 850 °C

(-328 to 1,582 °F)

100 ohm platinum @ 0 °C

= 0.00385

Range: -200 °C to 850 °C

(-328 to 1,582 °F)

10 ohm copper @ 25 °C

= 0.00427

Range: -60 to 355 °C

(-76 to 671 °F)

1000 ohm nickel @ 0 °C

= 0.00618

Range: -60 to 170 °C

(-76 to 356 °F)

100 ohm nickel @ 0 °C

= 0.00618

Range: -60 to 250 °C

(-76 to 482 °F)

1000 ohm nickel @ 70 °F

= 0.00637

Range: -46 to 148.9 °C

(-50 to 300 °F)

120 ohm nickel @ 0 °C

= 0.00672

Range: -80 to 260 °C

(-112 to 500 °F)

Input Range 0 to 4000 ohms 0 to 400 ohms 0 to 40 ohms

Accuracy

From factory

After setting gain and offset

0.8 °C (Pt); 0.6 °C (Ni)

0.6 °C (Pt); 0.4 °C (Ni)

0.8 °C (Pt); 0.6 °C (Ni)

0.6 °C (Pt); 0.4 °C (Ni)

1.7 °C

1.2 °C

Excitation Current 0.325 mA 2 mA 4.28 mA

Over-Range Limit 10% overrange for all measurements in ohms

Resolution

In Ohms

In RTD Temperature

The greater of: (Ohms Range / 100,000) or 1 milliohm

Better than or equal to 0.05 °C (0.09 °F)

Input Filtering

Front end filtering

DSP Notch filter

-15 dB @ 50 Hz, -20 dB @ 60 Hz

20 Hz (-3 DdB = 5.24 Hz)

Data Freshness (Max) 1.2 s

Auto-range Settle Time

Step change from 10 to 8000

Step change from 8000 to 10

1.2 s to the next higher or lower range

<= 10 s ranging up (channel may show overrange until settled)

<= 10 s ranging down (channel will give a reading while settling)

Total Lead Resistance 200 ohms maximum

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB at 60 Hz

Maximum Survivable Fault Voltage at Input

(between any 2 field wires) ±8 V

Maximum Operating Common Mode Voltage 250 V field terminal to logic connector

Isolation 1500 V field side to logic side

Power Requirements 5.00 to 5.20 VDC @ 135 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Maximum wire size 20 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Agency Approvals UL, CE, RoHS, DFARS

Warranty Lifetime

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

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PAGE 25

DATA SHEET

Form 1065-190329

ICTD TEMPERATURE INPUT MODULE, TWO OR FOUR CHANNELS

SNAP-AICTD and SNAP-AICTD-4

Description

SNAP-AICTD and SNAP-AICTD-4 modules provide temperature input

data from any industry-standard Integrated Circuit Temperature

Device (ICTD). The SNAP-AICTD has two channels, and the

SNAP-AICTD-4 has four channels. See the table on page 3 for I/O

processor compatibility.

The simple two-wire connections are made to the pluggable terminal

strip on top of the module. Up to 2,000 feet of ordinary hook-up wire

is used to connect the sensor to the input terminal strip.

Both modules are compatible with all industry-standard ICTD probes,

including the AD-590 family from Analog Devices and Opto 22’s part

number ICTD.

Specifications

Part Number Description

SNAP-AICTD Two-channel analog temperature input, ICTD

SNAP-AICTD-4 Four-channel analog temperature input, ICTD

Input Range with ICTD Probe -40 °C to +100 °C

Module Input Range

Zero Scale

Full Scale

-273 °C

+150 °C

Resolution 0.017 °C

Accuracy with ICTD Probe ±0.8 °C

Sensitivity 1.0 microamps/ °C

Data Freshness (Max) 167 ms (2-channel module)

355 ms (4-channel module)

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Operating Common

Mode Voltage 250 V

Isolation 1500 V

Power Requirements 5 VDC (± .015 ) @ 150 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

PAGE 26

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

ICTD TEMPERATURE INPUT MODULE (CONTINUED)

SNAP-AICTD-4 (Four channels)

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

SNAP-AICTD (Two channels)

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 27

DATA SHEET

Form 1065-190329

ICTD TEMPERATURE INPUT MODULE, EIGHT CHANNELS

SNAP-AICTD-8

Description

The SNAP-AICTD-8 module provides temperature input data from any

industry-standard Integrated Circuit Temperature Device (ICTD). It has

eight channels of input. The SNAP-AICTD-8 can be used only with

SNAP PAC brains and rack-mounted controllers (standard wired and

Wired+Wireless models).

The simple two-wire connections are made to the terminal strip on

top of the module. Up to 2,000 feet of ordinary hook-up wire is used

to connect the sensor to the input terminal strip.

The module is compatible with all industry-standard ICTD probes,

including the AD-590 family from Analog Devices and Opto 22’s part

number ICTD.

Specifications

CH 2CH 1CH 0 CH 3

12345678

WHT

BLK

CH 6CH 5CH 4 CH 7

12345678

WHT

BLK

WHT

BLK

WHT

BLK

WHT

BLK

WHT

BLK

WHT

BLK

WHT

BLK

ICTD Source

NOTE: Terminals 2, 4, 6, and 8 on both

connectors are connected internally.

1

2345678

1

2345678

Part Number Description

SNAP-AICTD-8 Eight-channel analog temperature input, ICTD

Input Range with ICTD Probe -40 °C to +100 °C

Module Input Range

Zero Scale

Full Scale

-273 °C

+150 °C

Data Freshness (Max) 0.28 seconds

Resolution 0.017 °C

Accuracy with ICTD Probe ±0.8 °C

Sensitivity 1.0 mA/ °C

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Operating Common

Mode Voltage 250 V

Isolation 1500 V

Power Requirements 5 VDC (± .015 ) @ 170 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 1.7 in-lb (0.19 N-m)

Agency Approvals CE, RoHS, DFARS

Warranty Lifetime

PAGE 28

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

THERMOCOUPLE/MILLIVOLT INPUT MODULE

Thermocouple Polarity and Range

Type – + Range

E Red Purple -270°C to +1,000 °C

J Red White -210°C to +1,200 °C

K Red Yellow -270°C to +1,372 °C

SNAP-AITM

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

Description

The SNAP-AITM module provides two channels of analog to digital

conversion. Each channel on the module can be configured for

-150 mV DC to +150 mV DC or -75 mV DC to +75 mV DC, or for

type E, J, or K thermocouple operation.

Since both inputs share the same reference terminal, use isolated

probes for thermocouple inputs. If you need isolated channels on

the same module, see Opto 22 form #1182.

Specifications

Part Number Description

SNAP-AITM

Two-channel analog type E, J, or K thermocouple

or -150 mV to +150 mV input or -75 mV to +75 mV

input

Input Range -150 mV to +150 mV

-75 mV to +75 mV

Over-Range Limits -165 to +165 mV (+/-150 mV range)

-82.5 to +82.5 mV (+/-75 mV range)

Resolution 6 microvolts from -150 to +150 mV

3 microvolts from -75 to +75 mV

Cold Junction Temperature

Compensation

Automatic when used with

SNAP I/O processors

Input Filtering -3 dB @ 7 Hz

Input Response Time

(% of span/delta V/delta time) 63.2%/95 mV/23 mS

Data Freshness (Max) 167 ms (+/-150 mV)

334 ms (+/-75 mV)

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Survivable Input ±15 volts

Maximum Operating Com-

mon Mode Voltage 250 V

Accuracy at Full Scale 0.06% (90 microvolts) @ 150 mV

0.1% (75 microvolts) @ 75 mV

Drift: Gain Temperature

Coefficient 5 microvolts / °C

Drift: Offset Temperature

Coefficient 2 microvolts / °C

Thermocouple Accuracy [°C]

From factory

After user gain and offset

commands

± 2.0 (E, J, and K)

± 0.8

Isolation 1500 V

Power Requirements 5 VDC (±0.15) @ 170 mA

Input Resistance 100 Megohms (each channel)

Ambient Temperature:

Operating

Storage

-20 °C to 70 °C

-40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 3 in-lb (0.34 N-m)

Agency Approvals FM, CE, RoHS, DFARS

Warranty Lifetime

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 29

DATA SHEET

Form 1065-190329

THERMOCOUPLE/MILLIVOLT INPUT MODULE

SNAP-AITM-2

Description

The SNAP-AITM-2 module provides an input range of ±50 mV, ±25

mV, or Type B, C, D, G, N, T, R, or S thermocouple.

Since both inputs share the same reference terminal, use isolated

probes for thermocouple inputs. If you need isolated channels on

the same module, see Opto 22 form #1182.

Thermocouple Polarity and Range

Type – + Range

B RED GRAY +42° C to +1,820 °C

C, D, G RED WHITE 0° C to +2,320 °C

N RED ORANGE -270° C to +1,300 °C

R, S RED BLACK -50° C to +1,768 °C

T RED BLUE -270° C to +400 °C

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

Specifications

Part Number Description

SNAP-AITM-2

Two-channel analog type B, C, D, G, N, T, R, or S ther-

mocouple or -50 mV to +50 mVDC input

or -25 mV to +25 mVDC input

Input Range -50 mV to +50 mVDC

-25 mV to +25 mVDC

Over-range Limits -55 to +55 mV (+/-50 mV range)

-27.5 to +27.5 mV (+/-25 mV range)

Resolution 2 microvolts from -50 mV to +50 mV

1 microvolts from -25 mV to +25 mV

Cold Junction Temperature

Compensation

Automatic when used with

SNAP brains

Input Filtering -3 dB @ 2.4 Hz

Input Response Time

(% of span/delta V/delta time) 63.2%/31.5 mV/66 ms

Data Freshness (Max) 167 ms (+/- 50 mV)

334 ms (+/- 25 mV)

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Survivable Input ±15 volts

Maximum Operating

Common Mode Voltage 250 V

Accuracy at Full Scale 0.1% (50 microvolts) @ 50 mV

0.2% (50 microvolts) @ 25 mV

Drift: Gain Temperature

Coefficient 5 microvolts / °C

Drift: Offset Temperature

Coefficient 2 microvolts / °C

Thermocouple Accuracy [°C] B, R, S C, D, G T, N

From factory ±5 ±4 ±3

After user gain and offset

commands ±3 ±2 ±2

Isolation 1500 V

Power Requirements 5 VDC (±0.15 ) @ 170 mA

Input Resistance 100 Megohms (each channel)

Ambient Temperature:

Operating

Storage

-20 °C to 70 °C

-40 °C to 85 °C

Humidity 5-95%, non-condensing

Agency Approvals FM, CE, RoHS, DFARS

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 3 in-lb (0.34 N-m)

Warranty Lifetime

PAGE 30

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

THERMOCOUPLE/MILLIVOLT INPUT MODULE

Specifications

Part Number Description

SNAP-AITM-8

SNAP-AITM-8-FM

8-channel B, C, D, E, G, J, K, N, R, S, or T thermocouple

or -75 mV to +75 mV, 50 mV to +50 mV, or 25 mV to

+25 mV input

Input Range

-75 mV to +75 mV

-50 mV to +50 mV

-25 mV to +25 mV

Over-Range Limits

-82.5 to +82.5 mV (+/-75 mV range)

-55 to +55 mV (+/-50 mV range)

-27.5 to +27.5 mV (+/-25 mV range)

Resolution

3 microvolts from -75 mV to +75 mV

2 microvolts from -50 mV to +50 mV

1 microvolts from -25 mV to +25 mV

Cold Junction Temperature

Compensation

Automatic when used with SNAP I/O

processors

Input Filtering -3 dB @ 5 Hz

Data Freshness (Max) 2.25 s

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Survivable Input ±15 volts

Max Operating Common Mode

Voltage 250 V

Accuracy at Full Scale

0.1% (75 microvolts) @ 75 mV

0.1% (50 microvolts) @ 50 mV

0.2% (50 microvolts) @ 25 mV

Drift: Gain Temperature Coefficient 5 microvolts / °C

Drift: Offset Temperature Coeffi-

cient 2 microvolts / °C

Thermocouple Accuracy [°C] E, J, K B, R, S C, D, G T, N

From factory ±2.0 ±5 ±4 ±3

After user gain and offset com-

mands ±0.5 ±3 ±2 ±2

Isolation 1500 V

Power Requirements 5 VDC (±0.15) @ 200 mA

Input Resistance 100 Megohms (each channel)

Ambient Temperature:

Operating

Storage

-20 °C to 70 °C

-40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 3 in-lb (0.34 N-m)

Agency Approvals SNAP-AITM-8: UL, CE, RoHS, DFARS

SNAP-AITM-8-FM: FM, CE, RoHS, DFARS

Warranty Lifetime

SNAP-AITM-8 and SNAP-AITM-8-FM

Thermocouple Polarity and Range

Type – + Range

B RED GRAY +42° C to +1,820 °C

C, D, G RED WHITE 0° C to +2,320 °C

E RED PURPLE -270°C to +1,000 °C

J RED WHITE -210°C to +1,200 °C

K RED YELLOW -270°C to +1,372 °C

N RED ORANGE -270° C to +1,300 °C

R, S RED BLACK -50° C to +1,768 °C

T RED BLUE -270° C to +400 °C

NOTE: For best accuracy, wire all points before

calibrating, and short all unused channels.

The SNAP-AITM-8-FM is Factory Mutual approved.

Millivolt Thermocouple Source

0

1

C

2

3

C

4

5

C

6

7

C

+

+––

+

+––

+

+–– +

+––

Common terminals are connected internally.

Description

The SNAP-AITM-8 and SNAP-AITM-8-FM modules provide

eight channels of analog to digital conversion. Each channel

on the module can be configured for -75 mV DC to +75 mV

DC, -50 mV DC to +50 mV DC, -25 mV DC to +25 mV DC, or

for type B, C, D, E, G, J, K, N, R, S or T thermocouple operation.

Since all inputs share the same reference terminal, use

isolated probes for thermocouple inputs. See the

dimensional diagram on page 42.

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 31

DATA SHEET

Form 1065-190329

0 TO 250 VOLT RMS AC/DC INPUT MODULE

SNAP-AIVRMS

Description

The SNAP-AIVRMS module provides an input range of 0 to 250 volts

AC or DC. The SNAP-AIVRMS module may be used to monitor

120/240-volt AC/DC and 12/24/48-volt AC/DC system voltage.

Terminals 3, 4, 7, and 8 share a common connection inside the

module. Make sure you observe polarity when connecting the second

channel. To avoid a potentially hazardous short, double-check wiring

before turning on the voltage to be monitored.

If you need a module with channel-to-channel isolation, see form

#1182, the SNAP Isolated Analog Input Modules Data Sheet.

Specifications

Part Number Description

SNAP-AIVRMS Two-channel 0 to 250 V RMS AC/DC input

Input Range 0 to 250 V RMS AC/DC

Input Over-Range To 275 V

Input Resistance 1 M ohms

Accuracy ±0.2 V and ±0.2% reading

Resolution 10 mV

DC Reversal ± 0.4 V (.16%)

Input Response Time

(Step Change)

5% (12.5 V) in 100 mS

63.2% (158 V) in 200 mS

99% (248 V) in 1200 mS

Data Freshness (Max) 32.3 ms

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Operating

Common Mode Voltage 250 V

Isolation 1500 V

Power Requirements 5 VDC (±0.15 V) at 170 mA

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

PAGE 32

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

VOLTAGE INPUT MODULE, -10 VDC TO +10

VDC OR -5 VDC TO +5 VDC,

TWO OR FOUR CHANNELS

SNAP-AIV and SNAP-AIV-4

Description

The SNAP-AIV and SNAP-AIV-4 modules can be configured for either

-10 VDC to +10 VDC or -5 VDC to +5 VDC operation on each channel.

The SNAP-AIV provides two channels, and the SNAP-AIV-4 four. If you

need a module with more channels, see page 34. See the table on

page 3 for I/O processor compatibility.

Note that all channels share a common reference terminal. If you need

two isolated channels on the same module, see Opto22 form #1182.

Specifications

Part Number Description

SNAP-AIV Two-channel analog voltage input -10 to +10 VDC

SNAP-AIV-4 Four-channel analog voltage input -10 to +10 VDC

Input Range From -10 volts to +10 volts

From -5 volts to +5 volts

Over-Range Limits From -11 to +11 volts (+/-10 V range)

From -5.5 to +5.5 volts (+/-5 V range)

Resolution 0.4 mV when configured -10 to +10 volts

0.2 mV when configured -5 to +5 volts

Input Filtering -3 dB @ 64 Hz

Input Response Time

(% of span/ delta V / delta t) 63.2% / 6.7 V / 10 ms

Data Freshness (Max)

11.5 ms (2-channel, +/- 10 VDC)

23 ms (2-channel, +/- 5 VDC

23 ms (4-channel, +/- 10 VDC)

46 ms (4-channel, +/- 5 VDC

DC Common Mode

Rejection >-120 dB

AC Common Mode

Rejection >-120 dB @ 60 Hz

Maximum Survivable Input 220 VAC or 300 VDC

Maximum Operating

Common Mode Voltage 250 V

Accuracy 0.05%, 5 mV @ 10 VDC

2.5 mV @ 5 VDC

Gain Temperature

Coefficient 30 PPM/ °C

Offset Temperature

Coefficient 15 PPM/ °C

Isolation 1500 V

Power Requirements 5 VDC (±0.15) @ 170 mA

Input Resistance 1 M ohms (each channel; both channels

share the same reference point)

Ambient Temperature:

Operating

Storage

-20 °C to 70 °C

-40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 33

DATA SHEET

Form 1065-190329

VOLTAGE INPUT MODULE, -10 VDC TO +10 VDC OR -5 VDC TO +5 VDC,

FOUR CHANNELS (CONTINUED)

SNAP-AIV-4 (Four channels)

IMPORTANT: The mounting rack connector has 24 pins; the module

connector has 20 pins. The extra pins on the mounting rack

connector prevent misalignment of the module during installation.

SNAP-AIV (Two channels)

PAGE 34

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

VOLTAGE INPUT MODULE, -10 VDC TO +10 VDC OR -5 VDC TO +5 VDC, EIGHT CHANNELS

SNAP-AIV-8

Description

The SNAP-AIV-8 module can be configured for either -10 VDC to +10

VDC or -5 VDC to +5 VDC operation on each of its eight input

channels. (If you need a module with more channels, see page 35.)

The SNAP-AIV-8 can be used only with SNAP PAC brains and

rack-mounted controllers (standard wired and Wired+Wireless

models).

Note that all channels share a common reference terminal. If you need

two isolated channels on the same module, see Opto22 form #1182.

Specifications

Voltage Source

NOTE: Terminals 2, 4, 6, and 8 on both

connectors are connected internally.

CH 2CH 1CH 0 CH 3

1

2345678

1

2345678

CH 6CH 5CH 4 CH 7

Part Number Description

SNAP-AIV-8 Eight-channel analog voltage input -10 to +10 VDC

Input Range -10 volts to +10 volts

-5 volts to +5 volts

Over-Range Limits -11 to +11 volts (+/-10 V range)

-5.5 to +5.5 volts (+/-5 V range)

Resolution 0.4 mV when configured -10 to +10 V

0.2 mV when configured -5 to +5 V

Input Filtering -3 dB @ 64 Hz

Data Freshness (Max) 0.28 seconds

DC Common Mode Rejection >-120 dB

AC Common Mode

Rejection >-120 dB @ 60 Hz

Maximum Survivable Input 220 VAC or 300 VDC

Maximum Operating Com-

mon Mode Voltage 250 V

Accuracy 0.05%, 5 mV @ 10 VDC

2.5 mV @ 5 VDC

Gain Temperature

Coefficient 30 PPM/ °C

Offset Temperature Coeffi-

cient 15 PPM/ °C

Isolation 1500 V

Power Requirements 5 VDC (±0.15) @ 170 mA

Input Resistance 1 M ohms (all channels share the

same reference point)

Ambient Temperature:

Operating

Storage

-20 °C to 70 °C

-40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 1.7 in-lb (0.19 N-m)

Agency Approvals CE, RoHS, DFARS

Warranty Lifetime

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 35

DATA SHEET

Form 1065-190329

VOLTAGE INPUT MODULE, -10 VDC TO +10 VDC OR -5 VDC TO +5 VDC,

32 CHANNELS

SNAP-AIV-32 and SNAP-AIV-32-FM

Specifications

Input Range -10 volts to +10 volts

-5 volts to +5 volts

Over-Range Limits -11 to +11 volts (+/-10 V range)

-5.5 to +5.5 volts (+/-5 V range)

Resolution

0.4 mV when configured -10

volts to +10 volts

0.2 mV when configured -5

volts to +5 volts

Input Filtering -3 dB @ 31 Hz

Data Freshness (Max) 1.1 s

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Survivable Input 220 VAC or 300 VDC

Maximum Operating Common

Mode Voltage 250 V

Accuracy 0.05%, 5 mV @ 10 VDC

2.5 mV @ 5 VDC

Gain Temperature

Coefficient 30 PPM/ °C

Offset Temperature Coefficient 15 PPM/ °C

Isolation 1500 V

Power Requirements 5 VDC (±0.15) @ 150 mA

Input Resistance

1 M ohms (each channel; all

channels share the same refer-

ence point)

Ambient Temperature:

Operating

Storage

-20 °C to 70 °C

-40 °C to 85 °C

Humidity 5-95%, non-condensing

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals

SNAP-AIV-32: UL, CE, RoHS,

DFARS

SNAP-AIV-32-FM: FM, CE,

RoHS, DFARS

Warranty Lifetime

Part Number Description

SNAP-AIV-32

SNAP-AIV-32-FM 32-channel analog voltage input -10 to +10 VDC

SNAP-HD-CBF6 Wiring harness with flying leads for

SNAP-AIV-32 modules

SNAP-HD-BF6 Wiring harness for SNAP-AIV-32 modules and

SNAP-AIV-HDB breakout racks

SNAP-AIV-HDB

SNAP-AIV-HDB-FM

Breakout racks for SNAP-AIV-32 and

SNAP-AIV-32-FM

Description

The SNAP-AIV-32 and SNAP-AIV-32-FM modules can be configured

for either -10 VDC to +10 VDC or -5 VDC to +5 VDC operation on each

of its 32 channels. See the table on page 3 for I/O processor

compatibility. The SNAP-AIV-32-FM is Factory Mutual approved.

Note that all channels share a common reference terminal. (For

channel-to-channel isolated modules, see Opto22 form #1182.)

SNAP TEX cables and a breakout rack are available separately for

wiring points to field devices (see form #1756, the SNAP TEX Cables &

Breakout Boards Data Sheet). The SNAP-HD-BF6 wiring harness

connects the module to the breakout rack, which can then be wired

to field devices. The SNAP-HD-CFB6 wiring harness has flying leads to

connect to field devices.

See the dimensional drawing for the module on page 45.

PAGE 36

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

VOLTAGE INPUT MODULE -10 VDC TO +10 VDC OR -5 VDC TO +5 VDC (CONTINUED)

Wiring diagram: SNAP-AIV-HDB breakout rack to SNAP-AIV-32 or SNAP-AIV-32-FM module

NOTE: This diagram is also used to wire the SNAP-AIV-HDB breakout rack to a SNAP-AIMA-32 or SNAP-AIMA-32-FM

module, when the module connects to self-powered (4-wire) device.

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PAGE 37

DATA SHEET

Form 1065-190329

MILLIVOLT INPUT MODULE

SNAP-AIMV2-4

Description

The SNAP-AIMV2-4 module provides four channels of analog to digital

conversion. See the table on page 3 for I/O processor compatibility.

Each channel on the module can be configured for -50 mV DC to +50

mV DC or -25 mV DC to +25 mV DC.

Note that all inputs share the same reference terminal.

Specifications

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

Part Number Description

SNAP-AIMV2-4 Four-channel -50 to +50 mV input or -25 mV to

+25 mV input

Input Range From -50 mV to +50 mV

From -25 mV to +25m V

Over-Range Limits

From -55 to +55 mV

(+/-50 mV range)

From -27.5 to +27.5 mV

(+/-25 mV range)

Resolution 2 microvolts (-50 mV to +50 mV)

1 microvolt (-25 mV to +25 m V)

Input Filtering -3 dB @ 2.4Hz

Input Response Time

(% of span/delta V/delta time) 63.2%/31.5 mV/66 ms

Data Freshness (Max) 335 ms (+/- 50 mV)

668 ms (+/- 25 mV)

DC Common Mode Rejection >-120 dB

AC Common Mode Rejection >-120 dB @ 60 Hz

Maximum Survivable Input ±15 volts

Maximum Operating Com-

mon Mode Voltage 250 V

Accuracy at Full Scale 0.1% (50 microvolts) @ 50m V

0.2% (50 microvolts) @ 25 mV

Drift: Gain Temperature Coef-

ficient 3 microvolts / °C

Drift: Offset Temperature

Coefficient 2 microvolts / °C

Isolation 1500 V

Power Requirements 5 VDC (±0.15 ) @ 170 mA

Input Resistance - Single

Ended 100 Megohms (each channel)

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

PAGE 38

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

MILLIVOLT INPUT MODULE

SNAP-AIMV-4

Description

The SNAP-AIMV-4 module provides four channels of analog to digital

conversion. See the table on page 3 for I/O processor compatibility.

Each channel on the module can be configured for -150 mV DC to

+150 mV DC or -75 mV DC to +75 mV DC.

Note that all inputs share the same reference terminal.

Specifications

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

Part Number Description

SNAP-AIMV-4 Four-channel -150 to +150 mV or -75 to

+75 mV input

Input Range From -150 mV to +150 mV

From -75 mV to +75m V

Over-Range Limits

From -165 to +165 mV

(+/-150 mV range)

From -82.5 to +82.5 mV

(+/-75 mV range)

Resolution 6 microvolts (-150 mV to +150 mV)

3 microvolts (-75 mV to +75 mV)

Input Filtering -3 dB @ 7 Hz

Input Response Time (% of

span/delta V/delta time) 63.2%/95 mV/23 ms

Data Freshness (Max) 335 ms (+/- 150 mV)

668 ms (+/- 75 mV)

DC Common Mode Rejec-

tion >-120 dB

AC Common Mode

Rejection >-120 dB @ 60 Hz

Maximum Survivable Input ±15 volts

Maximum Operating

Common Mode Voltage 250 V

Accuracy at Full Scale 0.06% (90 microvolts) @ 150 mV

0.1% (75 microvolts) @ 75 mV

Drift: Gain Temperature

Coefficient 3 microvolts / °C

Drift: Offset Temperature

Coefficient 2 microvolts / °C

Isolation 1500 V

Power Requirements 5 VDC (±0.15 ) @ 170 mA

Input Resistance - Single

Ended 100 Megohms (each channel)

Operating Temperature -20 °C to 70 °C

Storage Temperature -40 °C to 85 °C

Humidity 5-95%, non-condensing

Wire size 22 to 14 AWG

Torque, hold-down screws 4 in-lb (0.45 N-m)

Torque, connector screws 5.26 in-lb (0.6 N-m)

Agency Approvals UL, FM, CE, RoHS, DFARS

Warranty Lifetime

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 39

DATA SHEET

Form 1065-190329

Alternate Wiring Diagram

SNAP-AIV-HDB breakout rack to SNAP-AIMA-32 or SNAP-AIMA-32-FM module

Use this diagram when the module connects to devices that share a positive common connection

PAGE 40

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

All Two- and Four-channel Modules, except SNAP-AITM-2

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 41

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

SNAP-AITM-2 Modules

PAGE 42

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

SNAP-AITM-8 and SNAP-AITM-8-FM Modules

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 43

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

SNAP-AICTD-8, SNAP-AIMA-8, SNAP-AIV-8, and SNAP-AIR400K-8 Modules

PAGE 44

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

SNAP-AIRTD-8U

3.295 in

[83.7 mm]

.730 in

[18.5 mm]

.787 in

[20.0 mm]

3.271 in

[83.1 mm]

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 45

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

All 32-Channel Modules

PAGE 46

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

IMPORTANT: The mounting rack connector has 24 pins; the

module connector has 20 pins. The extra pins on the

mounting rack connector prevent misalignment of the

module during installation.

All Modules

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 47

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

Height on Rack: All Two- and Four-channel Modules, except SNAP-AITM-2

PAGE 48

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

Height on Rack: 32-Channel Modules

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 49

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWINGE

Height on Rack: SNAP-AITM-2 Module

PAGE 50

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© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

Height on Rack: SNAP-AITM-8 and SNAP-AITM-8-FM Modules

OPTO 22 • 800-321-6786 • 1-951-695-3000 • www.opto22.com • sales@opto22.com

© 2001–2019 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.

PAGE 51

DATA SHEET

Form 1065-190329

DIMENSIONAL DRAWING

Height on Rack: SNAP-AICTD-8, SNAP-AIMA-8, and SNAP-AIV-8