Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
I/O Modules
CIRCUITRY
+5V
1
2
3
4
5
GROUND
AMP
V/F
DC/DC
CONVERTER
V
S
V
S-
V
S
T
T
N/C
N/C
SIGNAL
CONDITIONING
SQUARE-
WAVE
OUTPUT
T
RTD
10KΩ
G
+
–
73G-ITR100 73G-ITR100
2 WIRE RTD
BLACK
BLACK
OMEGA
CONNECTOR
TYPE MTP
MALE AND
FEMALE
(INCLUDED)
RED
G
+
–
73G-ITR100
3 WIRE RTD
BLACK
BLACK
OMEGA
CONNECTOR
TYPE MTP
MALE AND
FEMALE
(INCLUDED)
4 WIRE RTD
BLACK
BLACK
OMEGA
CONNECTOR
TYPE MTP
MALE AND
FEMALE
(INCLUDED)
RED RED
RED
G
RTD Input Modules
FEATURES
• Standard Package and Pin-out
• Single 5V Power Supply
• 12-Bit Resolution
• Optical Isolation from Input to
Output
• Intermix With Digital Modules on
the Same Rack
• Meets the Requirements of
IEEE 472
• UL, CSA, CE Certified (OpenLine only)
• OpenLine® has 2-wire, 3-wire and
4-wire versions
73L-ITR3100 (4100) 73L-ITR100 73G-ITR
G5 G5: Connector
Wiring
OpenLine®: 2 Wire RTD
5.23K
10K
CHANNEL A
CHANNEL B
4.53K
4.53K
I/O MODULE
PIN #
TERMINAL
BLOCK #
OPTICAL
ISOLATION
ISOLATED
DC/DC
CONVERTER
SIGNAL
CONDITIONING
AND
FILTER
SIGNAL
CONDITIONING
AND
FILTER
Vs
Vs–
µP
CH. A
A/D
CH. B
2.5V
2.5V
+
–
+
ISOLATION
9
8
7
6
5
11
22
33
44
MODULE ID
RXD
TXD
Vcc
GND
I/O
34
I/O Modules
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
RTD Input Modules
CIRCUITRY
OpenLine®: 3 or 4 Wire RTD
OpenLine®: Connector Wiring
Type/Function Grayhill Part Number
G5, OpenLine®73G-ITR100 73L-ITR100 73L-ITR3100/73L-ITR4100
Specifications Units
Number of Inputs 1 Ch. 2 Ch. 2 Ch.
Resolution bits 12 12 12
°C/count 0.10 0.098 0.098
Absolute Accuracy @ 25°C1, 2 +/- 0.8 +/- 0.3 +/- 0.3
Full Range Deflection DIN 43760 standard DIN 43760 standard DIN 43760 standard
Temperature Coefficient 0.00385 (European) 0.00385 (European) 0.00385 (European)
Serial Data Format 12-bit packet Right Justified, 16-bit Right Justified, 16-bit
Serial Data Packet — 115.2Kb, N, 8, 2 115.2Kb, N, 8, 2
Step Response Time3mS 2.5 42 42
Input Temperature Range °C (°F) -50-350 (-58-662) -50-350 (-58-662) -50-350 (-58-662)
RTD Type 100 ohm platinum 100 ohm platinum 100 ohm platinum
Maximum Overload V — +/- 6 +/- 6
Logic Voltage Range Vdc 4.5-5.5 4.75-5.25 4.75-5.25
Max. Logic Supply Current@5Vdc mA/Ch. 150 38 38
Module ID (Pin 9) KΩN/A 5.23 5.23
Isolation Voltage
Field to Logic Vrms 2500 2500 2500
Field to Power Vrms 2500 2500 2500
Module to Module Vrms 2500 2500 2500
Channel A to Channel B — None None
Environmental Conditions
Operating Temperature °C 0 to +60°C -40 to +85°C -40 to +85°C
Storage Temperature °C -40 to +85°C -55 to -100°C -55 to +100°C
1 Includes offset, gain, non-linearity and repeatability error terms.
2 Accuracy and drift graphs are available in Bulletin #753.
3 Time required for output to change to within 1% of final reading.
SPECIFICATIONS: By Part Number
Available from your local Grayhill Distributor.
For prices and discounts, contact a local
Distributor, a local Sales Office or Grayhill.
I/O
35
9
8
7
5.23K
10K
ISOLATED
DC/DC
CONVERTER
OPTICAL
ISOLATION
µP
CH. A
A/D
CH. B
CHANNEL A
CHANNEL B
ISOLATION
SIGNAL
CONDITIONING
AND
FILTER
SIGNAL
CONDITIONING
AND
FILTER
Vs
Vs
–
5V
5V
100µA
100µA
A1A2A3
A4B1B2B3B4
++––
1
2
3
4
6
5
1
2
3
4
NC
NC
NC
NC
MODULE ID
TXD
RXD
Vcc
GND
Circuits connected on 3-wire version
GNC
+
–
73L-ITR3100
3 WIRE RTD
PHOENIX CONTACT
CONNECTOR
(INCLUDED) A4 B4 B3 B2 B1
A3 A2 A1
GS
+
–
73L-ITR4100
4 WIRE RTD
A4 B4 B3 B2 B1
A3 A2 A1
