Omron E5AR-T User Manual page 347

Section 9 User Calibration
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Input types 2, 4, 7, 8, 10, 14
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Input types 3, 5, 6, 9, 11, 12, 13 Input types 3, 5, 6, 9, 11, 12, 13 Input types 3, 5, 6, 9, 11, 12, 13
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Input types 2, 4, 7, 8, 10, 14
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Follow these steps to perform calibration when thermocouple input is
selected.
1. Connect the power supply.
2. Connect the DC reference current/voltage generator (STV below),
precision digital meter (DMM below), and cold junction compensator (a
ZERO-CON is used as an example below) to the input terminals of the
thermocouple as shown below.
STV
DMM
Leave open.
ZERO-CON
OUTPUT INPUT
3. Turn ON the power.
4. Move to Calibration Level.
A 30-minute aging timer will begin. Perform aging using this timer as a
guideline. When 30 minutes has elapsed, Display No. 2 will show 0.
You can proceed to the next stop before the display shows 0.
5. Press the M Key. The display at the left will appear.
The count value that was input will be displayed on Display No. 2 in
hexadecimal. Set the STV as follows:
• For input types 2, 4, 7, 8, 10, and 14: 53 mV
• For input types 3, 5, 6, 11,12, and 13: 22 mV
Wait until the count on Display No. 2 is sufficiently stable and then press
the D Key. This tentatively registers the calibration data at this point.
6. Press the M Key. The display at the left will appear.
Set the STV to 6 mV.
Wait until the count on Display No. 2 is sufficiently stable and then press
the D Key. This tentatively registers the calibration data at this point.
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Compensating leads of selected thermocouple
However, compensating leads for a K thermocouple
can be used for E, R, S, B, and W thermocouples.