Yokogawa DR240 Manual do Utilizador descarregar pdf (Página 243)

13-10

IM DR232-01E

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.

13.With

, select the DISPLAY mode.

ADJUST MODE=DISPLAY

>S_UNIT0 : MODULE No=0

DISPLAY CAL/EXEC END

14.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.

15.The calibrated values are displayed as follows:

20mV ZERO=– 1

>S_UNIT0 : MODULE No=0

16.Press the ENTER key.

17.Display the calibrated-value display items in the following order:

Repeat steps 15 and 16 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

For a mA-input module, show the calibrated values in the order, 20 mA ZERO and 20 mA

SPAN. For a strain input module, show the calibrated values in the following order:

2k ZERO, 2k SPAN, 20k ZERO, 20k SPAN, 200k ZERO and 200k SPAN.

For a digital input module, show the calibrated value in the following order;

60mV ZERO, 60mV SPAN, 6V ZERO, 6V SPAN.

18.After checking the [Cu: 2 mA SPAN] calibrated value in the above calibrated-value display

items, press the ENTER key.

* * * DISPLAY END * * *

>S_UNIT : MODULE No=0

19.Press the ENTER key.

13.5 Calibration

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Yokogawa DR240 Manual do Utilizador Página 243