WV448-2000.V1 - EUROTHERM CONTROLS

DIN Rail Mounting

The WV448 mounts on a 35mm TS35 DIN rail, by simply hooking

one side of the mounting foot over the rail and pressing the module

towards the rail until it locks into place. To remove the unit from the

rail, place the tip of a flat-bladed screwdriver under the release clip

on either the top or the bottom of the module and pry up until the

module releases from the rail. See Figure 1.

the front side of the upper and lower terminal blocks for a positive

fit. The board slides in where the switch and the switch position chart

on the case can be viewed together.

Power Connections

The power jumper clips (see Figure 2) are used to distribute power

to a maximum of 16 modules. In applications using more than 16

modules, power wiring must be connected to the first and last module,

and distributed to the remaining modules using the power clips. This

technique allows for "hot swapping" of a module without interrupting

power to the remaining units.

Opening the Case

The case can be opened by simultaneously pressing in on the two

ribbed tabs located at the top and bottom of the front cap of the case

and sliding out the circuit board. This provides easy access to the DIP

switch for range selection. To close the case, slide the board back in

until the two tabs lock firmly in place. This may require pressing on

Wiring Connections

Input Range Configuration

Unless otherwise specified, the factory presets the Model WV448

as follows:

Input: 0-30mV (using the ±50mV range)

Output: Current

Range: 4-20mA

Remote Cal: Off

1. For other ranges, refer to the SWITCH SETTINGS table.

Reconfigure switch S1 for the desired input range and output type.

2. Set position 1 of S1 to ON if a WVC16 will be utilized and remote

calibration capability is desired.

3. Set position 2 and 3 of S1 for the desired output type.

4. Set positions 4-6 of S1 and 1 for the desired input range.

Bridge Input Isolating Signal Conditioner

Installation and Calibration Instructions

NOTE: The unit has been shipped with the Power Clips attached. Please remove the clips before installing the module on the DIN rail . If

the Power Clips are chosen as the means to route power, they can be installed once the modules are in place on the DIN rail.

ULTRA SLIMPAK® II MODEL WV448-2000

Figure 1

Figure 2

Pin Description

11 DC Power (+)

12 DC Power (-)

13 No Connection

21 DC Power (+)

22 DC Power (-)

23 No Connection

41 Bridge Input (+)

42 Bridg e Input (-)

43 Excitation (+)

51 Output (+)

52 Output (-)

53 Exci ta tion (-)

Switch Settings 1. Connect the input to a calibrated AC source and the output to a

voltage or current meter. Apply power and allow the system to reach

thermal equilibrium. Refer to Figure 3 for a detailed flow chart of the

procedure. The section in the dotted-line box is all that is required for

the user to calibrate operational input and output, and is all that is

described in this procedure.

2. Adjust the input signal to the desired maximum and observe that

the Green LED is on or flashing. Push the CAL button and hold for

more than 4 seconds. The Yellow and Red LEDs should be on. Push

the CAL button momentarily and the Yellow and Green LEDs will

be on. From this point on, you can exit the calibration procedure at

any step, without saving new data, by holding the CAL button for

at least 4 seconds.

3. Apply the maximum input signal level desired and push the CAL

button. The Yellow LED should now be on.

4. Apply the minimum input signal level desired and push the CAL

button. The Green and Red LEDs should now be on. If you do not

wish to change the output calibration, press the CAL button rapidly

three times to exit the calibration routine.

5. Adjust the input signal upward until the output is at the desired

maximum level (e.g. 20.00mA), and then push the CAL button. The

Red LED should be on.

6. Adjust the input signal level downward until the output is at the

desired minimum level (e.g. 4.00mA), and then push the CAL button.

All three LEDs should now be on.

7. Push the CAL button once more to save the calibration data. The

Green LED should be on if the input is within the calibrated range.

Diagnostic LEDs

Other than when executing the pushbutton calibration routine, the

LEDs blink under the following conditions:

GREEN: Flashes at 2Hz when the input is under range.

Flashes at 8Hz when the input is over range.

RED: Flashes at 2Hz when the output is under range.

Flashes at 8Hz when the output is over range.

An Under Range condition exists when the signal is lower than the

operation low value minus 6.25% of operational span. An Over Range

condition exists when the signal is higher than the operation high value

plus 6.25% of operational span.

A voltage output short circuit can cause an under range condition

(RED blinking at 2Hz rate). A current output open circuit can cause

an over range condition (RED blinking at an 8Hz rate).

There could be two or more LEDs blinking at the same time, which

means the module has more than one error condition. Only when all

error conditions have been removed will the LEDs be back to normal

(green on, red and yellow off).

Calibration

For best results, calibration should be performed in the operating

environment, mounted to a piece of DIN rail, allowing at least one hour

for thermal equilibrium of the system. If pre-calibration on a test

bench is desired, then an output load equal to the input impedance of

the devices connected to the WV448 output is recommended, along

with the warm-up period.

Note: Many applications do not require calibrating the output levels

and simply utilize the default operational output ranges of the unit

(0-10VDC, 0-20mA or 4-20mA). If the factory default calibration has

been changed, the last saved operational output values are utilized.

In those applications, the only calibration required is the operational

input values. Once the maximum and minimum input values have been

set, the Green and Red LEDs will be on. At that point simply press

the CAL button rapidly 3 times and you will exit the calibration

routine without effecting the last saved calibration for the operational

output values.

Function S1

123456

Input

+/- 5m V - - - 

+/- 10mV - - - 

+/- 20mV - - - 

+/- 50mV - - - 

+/- 100mV - - - 

+/- 200mV - - - 

Re m ote Cal Enable -----

Output Range

0 to 10V -  ---

0 to 20mA - ---

4 to 20mA - - - -

Key:  = 1 = ON or Closed; - = n/a

Figure 3: WV448 Calibration Flowchart

Normal Operation 00

Ready to Cal 21

Cal High 22

Cal Low 23

Cal High 12

Cal Low 13

Save Cal Data 14

End

Quit without saving new data

Off

Flashing (10 Hz)

Press Button

Hold Button (4 Seconds)

Extended Hold (10 Seconds)

NOTE:

LEGEND

Cal Full Scale Input

Cal Operational Input

RGY

Cal High 42

Cal Low 43

Ready to Save 44

End

Cal Operational Output

GR Y

RYG

End

YHRY

Cal High 32

Cal Low 33

Save Cal Data 34

End

Quit without saving new data

Cal Full Scale Output

RHRY

End

Eurotherm Controls

741-F Miller Drive

Leesburg, VA 20175-8993

703-443-0000

info@eurotherm.com

Factory Assistance

For additional information on calibration, operation and

installation contact our Technical Services Group:

703-669-1318

Action Instruments Barber-Colman Eurotherm Chessell Eurotherm Controls

actionsupport@eurotherm.com

Figure 4: LED/Switch locations

Dimensions

Dimensions are in mm (inches)

Specifications

Inputs

± 5mV, ±10mV, ±20mV, ±50mV, ±100mV, ±200mV

Impedance

>1M ohms

Over-voltage

400Vrms (intermittent); 264Vrms (continuous)

Operation

Direct or reverse acting

Bridge Excitation

1 to 10VDC, 120mA

Input Accuracy

0.015% of span

Pushbutton Adjustment

(Inputs >10mV)

Effective zero offset: ≥95%

Effective span turn down: ≥95%

(Inputs <10mV)

Effective zero offset: ≥50%

Effective span turn down: ≥50%

Local Range Selection

By DIP switch

Output

Voltage:

0 to 10V (pushbutton adjustable to 95% of range)

Source Impedance: <10 ohms

Drive: 10mA

Current:

0 to 20mA (pushbutton adjustable to 95% of range)

(4mA min position available on range switch)

Source Impedance: >100k ohms

Compliance: 20V @ 20mA (1k ohms max)

Output Accuracy

0.05% of Full Scale

Overall Accuracy

0.065% of Full Scale

Output Ripple

0.03% rms

Response Time

150 mSec, 10 to 90%

Stability

±100ppm/°C

Common Mode Rejection

120dB @ DC, >90dB @ 60Hz, or better

Isolation

≥1800VDC or peak AC between input, output & power.

Size DIN rail case – 0.69” wide (17.5mm), refer to Dimensions drawing

Environmental

Operating Temperature: 0°C to +60°C (32°F to 140°F)

Storage Temperature: -25°C to +85°C (-13°F to 185°F)

Operating Relative Humidity (non-condensing): 15% to 95%RH at 45°C

Non-operating Relative Humidity: 90%RH at 60°C for 24 hours

Agency Approvals (EMC & Safety)

CE, EN61326, EN61010-1

CSA & UL Combined mark