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E5CNH E5AN-H E5EN-H Digital Controllers User's Manual - OMRON

E5CNH E5AN-H E5EN-H Digital Controllers User's Manual - OMRON

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Platinum Resistance Thermometer Calibration (Thermocouple/Resistance Thermometer Input) Section 6-4<br />

6-4 Platinum Resistance Thermometer Calibration<br />

(Thermocouple/Resistance Thermometer Input)<br />

In this example, calibration is shown for Controller with a resistance thermometer<br />

set as the input type.<br />

Use connecting wires of the same thickness.<br />

1,2,3... 1. Connect the power supply.<br />

2. Connect a precision resistance box (called a “6-dial” in this manual) to the<br />

platinum resistance thermometer input terminals, as shown in the following<br />

diagram.<br />

9<br />

Input power supply<br />

10<br />

1<br />

Input power supply<br />

2<br />

E5CN-H<br />

3. Turn the power ON.<br />

adj<br />

30<br />

4. Move to the calibration level.<br />

This starts the 30-minute aging timer. This timer provides an approximate<br />

timer for aging. After 30 minutes have elapsed, the No. 2 display changes<br />

to 0. You can advance to the next step in this procedure even if 0 is not<br />

displayed.<br />

Input type 0:<br />

5. Execute calibration for the main input.<br />

p390<br />

e20c<br />

Press the M Key to display the count value for each input type.<br />

The No. 2 display at this time shows the currently entered count value in<br />

hexadecimal. Set the 6-dial as follows:<br />

Input type 0: 390 Ω<br />

Input types 1, 2, 3, 4, 24:<br />

Input type 1, 2, 3, 4 or 24: 280 Ω<br />

p280<br />

e26b<br />

Allow the count value on the No. 2 display to fully stabilize, then press the<br />

D Key to temporarily register the calibration settings.<br />

If this count value is outside of the specified range, the No. 2 display will<br />

flash and the count value will not be temporarily registered.<br />

Input type 0: Press the M Key to display the count value for each input type.<br />

p200<br />

The No. 2 display at this time shows the currently entered count value in<br />

hexadecimal. Set the 6-dial as follows:<br />

93a7<br />

Input type 0: 200 Ω<br />

Input type 1, 2, 3, 4 or 24: 140 Ω<br />

Input types 1, 2, 3, 4, 24: Allow the count value on the No. 2 display to fully stabilize, then press the<br />

D Key to temporarily register the calibration settings.<br />

If this count value is outside of the specified range, the No. 2 display will<br />

flash and the count value will not be temporarily registered.<br />

p140<br />

e26b<br />

A 3<br />

B' 4<br />

B 5<br />

<strong>E5AN</strong>/EN-H<br />

A 18<br />

B' 19<br />

B 20<br />

6-dial<br />

6-dial<br />

289

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