Omega PCL1200, User Manual, Page: 32 / 60

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Figure 20. Calibrating an I/P Device
6.3 Calibrating a Transmitter
To calibrate a transmitter both the upper and the lower displays will
be used; one for measuring and the second a source. This section
covers all but the pressure transmitters. A thermocouple temperature
transmitter is used in this example.
The following steps show how to calibrate a temperature transmitter:
1. From the Main Menu select upper display, and choose current
loop [mA LOOP].
2. Switch to lower display from the Main Menu, and select [TC]
from the primary parameters. Choose output [OUT] from the
input/output control, and select TC type.
3. Set the 0 % and 100 % span points using the keypad and the
0% and 100% keys (refer to Setting 0 % and 100 % Parameters
section).
4. Connect the calibrator to the transmitter as shown in Figure 21.
5. Test transmitter at 0- 25- 50- 75- 100 % using the 25 % step
function (25% key).
Adjust the transmitter a necessary.
To calibrate a different transmitter, follow the above steps with the
exception of choosing TC on the lower display. Replace TC with the
correct parameter for the transmitter.