Instruction Manual

Instruction Manual
D103176X012
Basic Setup and Calibration
April 2014
33
Position Transmitter Calibration
Note
This procedure will not move the control valve. The instrument will simulate an output for calibration purposes only.
This procedure is only available on units that have the optional position transmitter / limit switch hardware installed.
The DVC2000 digital valve controller is shipped from the factory with the position transmitter already calibrated. You
do not normally need to perform this procedure. However, if you suspect that this needs adjustment, follow the
procedure below and refer to figure 3‐8.
Connect a current meter in series with the transmitter output terminals (+31 & -32) and a voltage source (such as the
DCS analog input channel). From the home screen, press the DOWN (B) arrow key six times and then press the RIGHT
(") arrow key.
1. Use the UP (Y) and DOWN (B) arrow keys to manipulate the output current read by the current meter. When 4 mA
is read by the meter, press the RIGHT (") arrow key.
2. Again, use the UP (Y) and DOWN (B) arrow keys to manipulate the output current read by the current meter.
When 20 mA is read by the meter, press the RIGHT (") arrow key.
If you want to keep this calibration, select SAVE AND EXIT. If you exit without saving, the last saved configuration data
will be restored.
Figure 3‐8. Position Transmitter Calibration
SAVE & EXIT?
EXIT W/O SAVING?
SAVE & EXIT?
PRESS 
"
"
A
USE  OR 
TO SEND 20MA
POSITION
TRANSMIITTER CAL
"
A
USE  OR 
TO SEND 4MA
TUNING
TRAVEL = 66.8%
14.6 MA 0.92 BAR
QUICK SETUP
Y
B
Y
B
Y
B
TRAVEL
CALIBRATION
Y
B
DETAILED SETUP
Y
B
Y
B
ANALOG INPUT
CALIBRATION
MA OUT WILL CHANGE
PRESS  FOR 3 SEC
"
A