Instruction Manual

Instruction Manual
D103176X012
Basic Setup and Calibration
April 2014
32
Analog Input Calibration
WARNING
During calibration you will be asked to move the valve full stroke. To avoid personal injury and property damage caused by
the release of pressure or process fluid, isolate the valve from the process and equalize pressure on both sides of the valve
or bleed off the process fluid.
The DVC2000 digital valve controller is shipped from the factory with the analog input 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 3‐7.
Connect a variable current source to the instrument +11 and -12 terminals. From the home screen, press the DOWN
(B) arrow key five times and then press the RIGHT (") arrow key. Acknowledge the warning if you are sure that you
want to proceed.
1. Adjust the variable current source to 4 mA.
2. Press the RIGHT (") arrow key
3. Adjust the variable current source to 20 mA.
4. 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 3‐7. Analog Input Calibration
"
A
APPLY 20MA
THEN PRESS 
APPLY 4MA
THEN PRESS 
"
A
SAVE & EXIT?
EXIT W/O SAVING?
SAVE & EXIT?
PRESS 
B
ANALOG INPUT
CALIBRATION
VALVE WILL MOVE
PRESS  FOR 3 SEC
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
"
A
A"