WIKA CTH65I0 Instruções de Operação descarregar pdf (Página 21)

21WIKA operating instructions, models CTH63I0 and CTH65I0

14120692.01 04/2015 EN/DE

5.4.2 Activating/deactivating display option differential temperature [Lin2]

(only for 2-channel instruments)

Press the ENTER/MENU key and select Lin2 using the arrow keys ▲▼. Then press

ENTER/MENU again. Now activate or deactivate the display “Differential temperature”

-T

using the arrow keys ▲▼.

If T

-T

is visible on the LC display, the differential temperature is active. Press ENTER/

MENU to confirm the desired setting.

Use ESC to return to the measuring mode.

To display differential temperature, both channels must be activated.

5.4.3 Calibration mode CAL

This measuring instrument allows to perform a simple calibration when replacing the

probes in order to compensate the manufacturer-specific tolerances of the probes and

guarantee a consistently high accuracy of the measuring chain.

The instrument has 3 different calibration modes:

CoFF: Standard characteristic curve

for example, for Pt100 resistance measurements DIN IEC 60751

oP1: Calibration by code

The 2 x 4-digit code is displayed on the handles of the probes, corresponds

to a 2-point calibration

oP2: Physical calibration

Calibration with reference standards: 1-point, 2-point or 3-point calibration

possible

The calibration coefficients are given in the calibration certificate.

CAL = calibrate

Press the ENTER/MENU key and select CAL using the ▲▼ arrow keys, then press

ENTER/MENU again. A small 1 appears on the left side of the display which indicates

Unit Lin2 CAL Chnl Lo6

5. Commissioning, operation

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