Resistance Thermometer Calibration - Omron E5*D series User Manual

7-4

Resistance Thermometer Calibration

In this example, calibration is shown for Digital Controller with a resistance thermometer set as the
input type. Use connecting wires of the same thickness
adj
30
• Input type 0:
p390
e20c
• Input types 1, 2, 3, 4:
p280
e26b
E5@D Digital Temperature Controllers User's Manual (H224)
1. Connect the power supply.
2. Connect a precision resistance box (called a "6-dial variable resistor" in this manual)
to the resistance thermometer input terminals, as shown in the following diagram.
E5 D
C
Input power supply
D
The terminal numbers are as follows:
• Input Terminals (A/B/B)
E5CD: 4, 5, and 6
E5ED: 22, 23, and 24
E5 D-B
C
Input power supply
*
C'
D
*
D'
* Common terminals are indicated with asterisks (*).
The terminal numbers are as follows:
• Input Terminals (A/B/B)
E5CD-B: 6, 7, and 8
E5ED-B: 30, 31, and 32
3. Turn the power ON.
4. Move to the Calibration Level.
This starts the 30-minute aging timer. This timer provides an approximate timer for
aging. After 30 minutes have elapsed, the No. 2 display changes to 0. You can
advance to the next step in this procedure even if 0 is not displayed.
5. Execute calibration for the main input.
Press the M Key to display the count value for each input type.
The No. 2 display at this time shows the currently entered count value in
hexadecimal. Set the 6-dial as follows:
Input type 0:
•
Input type 1, 2, 3 or 4:
•
Allow the count value on the No. 2 display to fully stabilize, then press the D Key to
temporarily register the calibration settings.
If this count value is outside of the specified range, the No. 2 display will flash and the
count value will not be temporarily registered.
7 User Calibration
A
B
6-dial variable
resistor
B
• Input Power Supply (C/D)
E5CD: 11 and 12
E5ED: 1 and 2
A
B
6-dial variable
resistor
B
• Input Power Supply (C or C', and D or D')
E5CD-B: 13 or 14, and 15 or 16
E5ED-B: 1 or 2, 3 or 4
390 Ω
280 Ω
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