VAC V200 Installation, Calibration And Troubleshooting Manual

1. Install the potentiometer module(1) in
the designed section of the unit as
shown. Tighten the screw that secures
the pot arm and spring.
The pot gearwheel should be aligned
and secured to the larger gearwheel(2).
2. Install the 4-20mA transmitter module(3)
into the designed position and tighten the
respective screws.
3. When used for the 4-20mA feedback, secure
the potentiometer connector(4) to the
transmitter (3).
NOTE: Make sure V200E/P has first been properly calibrated!
1. Power up the current loop.
2. Connect a low ohmic ampere meter over the test points(5).
3. Set the valve/actuator to 4mA or the zero
position.
4. Turn the feedback potentiometer shaft(6) with
a screw driver until you read 3.5 - 4.5 mA on the meter.
5. Adjust the trim potentiometer(7) marked zero
so that the meter reads 4mA.
6. Increase the input signal to a full
20mA or 100%.
7. Adjust the trim potentiometer(8) marked
span until the meter reads 20mA.
8. Re-check the zero position (4mA) and
make fine adjustments if necessary.
A very basic calibration can be accomplished
without a meter, using the two LED's.
Red LED lights up at 4mA, Green LED lights up at 20mA.
V200 4/20mA Installation
V200 4/20mA Calibration
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2
2
5
7
8
4
3
CCV
1
4
3
1
6
Pot adjustment.eps
6
5
6
Power Supply: 7-30VDC
Load max 850 Ohms @ 24 VDC
92125r3 4-20mA Installation
1