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April 2009
Calibrating the Analog Output (cont.)
1. Connect a digital multimeter or ammeter to the analog output.
2. The next prompt asks for the setpoint (4 or 20 mA). Use the
[ ] and [ ] arrow keys to move to the appropriate radio
button and press
3. The next prompt asks you to enter the actual value shown on
the multimeter or ammeter.
a. Press
[ENTER]
b. Use the numeric keys to enter the measured value.
c. Press
[ENTER]
4. Repeat steps 2 and 3 for the other setpoint.
5. Press the [
[ENTER]
then press
If you are unsatisfied with the calibration, you can reset the inputs
to factory defaults. Press the [ ] arrow key to move to the Reset
box, and then press
You have completed calibrating the outputs. To leave the Output
window,
•
Press the [
arrow key to move to the Input tab.
•
[F2]
Press
(Cancel) to return to Operate Mode without
confirming the changes.
•
[F3]
Press
(OK) to confirm the new data. The PT878GC returns
to Operate Mode.
9-22
[ENTER]
.
to open the text box.
to confirm your entry.
] arrow key to move to the Calibrate box, and
to calibrate the output.
[ENTER]
to undo the calibration.
] key to return to the Output tab, and the [ ]
Servicing the PT878GC
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