Yokogawa DR240 - Manual (Page 225)

13-10 IM DR231-01E
13.5 Calibration
Checking calibrated values in the DISPLAY mode
Use this mode only for checking calibrated values. In this mode, you can adjust a calibrated value,
but, if this value is invalid, the instrument may be inoperative. For details, contact your nearest
Sales representative.
11. With , select the DISPLAY mode.
AD JUST MODE=DISPLAY
>MODULE No=0
DISPLAY CAL/EXEC END
12. Press the ENTER key to display the calibrated value display items.
The following shows where the universal input modules are calibrated.
The calibrating procedures for DC V/TC/DI input modules are those except RTD in universal
input modules.
13. The calibrated values are displayed as follows:
20mV ZERO=– 1
>MODULE No=0
>
14. Press the ENTER key.
15. Display the calibrated-value display items in the following order:
Repeat steps 13 and 14 above.
20 mV SPAN
→ 60 mV ZERO → 60 mV SPAN → 200 mV ZERO → 200 mV SPAN → 2 V
ZERO
→ 2 V SPAN → 6 V ZERO → 6 V SPAN → 20 V ZERO → 20 V SPAN → 50 V
ZERO → 50 V SPAN → Pt: 1 mA ZERO → Pt: 1 mA SPAN → Pt: 2 mA ZERO → Pt: 2 mA
SPAN
→ Pt: 1 mA-H SPAN → Pt: 2 mA-H SPAN → Cu: 2 mA ZERO → Cu: 2 mA SPAN
16. After checking the [Cu: 2 mA SPAN] calibrated value in the above calibrated-value display
items, press the ENTER key.
* * * DISPLAY END * * *
>MODULE No=0
>
17. Press the ENTER key.