Emerson Fisher FIELDVUE DVC2000 Instruction Manual page 56

DVC2000 Digital Valve Controller
2. The instrument reduces the output pressure to 0.
The following message appears.
Use the Increase and
Decrease selections
until the displayed
pressure matches the
output x pressure.
Press OK when you have read the message.
3. The value of the output pressure appears on the
4
display. Press OK to display the adjustment menu.
4. From the adjustment menu, select the direction and
size of adjustment to the displayed value. Selecting
large, medium, and small adjustments causes
changes of approximately 3.0 psi/0.207 bar/20.7 kPa,
0.30 psi/0.0207 bar/2.07 kPa, and 0.03 psi/0.00207
bar/0.207 kPa, respectively. If the displayed value
does not match the output pressure, press OK, then
repeat this step (step 4) to further adjust the displayed
value. When the displayed value matches the output
pressure, select Done and go to step 5.
5. The instrument sets the output pressure to full
supply. The following message appears.
Use the Increase and
Decrease selections
until the displayed
pressure matches the
output x pressure.
Press OK when you have read the message.
6. The value of the output pressure appears on the
display. Press OK to display the adjustment menu.
7. From the adjustment menu, select the direction and
size of adjustment to the displayed value. Selecting
large, medium, and small adjustments causes
changes of approximately 3.0 psi/0.207 bar/20.7 kPa,
4-16
0.30 psi/0.0207 bar/2.07 kPa, and 0.03 psi/0.00207
bar/0.207 kPa, respectively. If the displayed value
does not match the output pressure, press OK, then
repeat this step (step 7) to further adjust the displayed
value. When the displayed value matches the output
pressure, select Done and go to step 8.
8. Place the instrument In Service and verify that the
displayed pressure matches the measured output
pressure.
Position Transmitter Calibration
Note
The position transmitter is calibrated
at the factory and should not require
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.
To calibrate the position transmitter, select Transmitter
Calibration from the Calibrate menu. Connect a
current meter in series with the +31 and −32 terminals,
and a voltage source (such as the DCS analog input
channel). Follow the prompts on the Field
Communicator display to manipulate the output
current read by the current meter to 4 mA, and then to
20 mA.
July 2009