WIKA CPH7650, Operating Instructions Manual, Page: 52 / 144

52 WIKA operating instructions, model CPH7650
EN
14261987.02 01/2019 EN/DE
6. Commissioning, operation
In order to put the instrument into SWITCH TEST mode, the procedure on the previous
page should be followed.
The switch test is not suitable for electronic switches (e.g. PNP- or NPN
switches), but is only for mechanical, potential-free switches.
The following is a more detailed explanation of point 2 “Preparing for SWITCH
TEST”
1
Voltage supply for test item (on/off)
If no external supply is required for the test item, “OFF” should be selected to conserve
energy (also see chapter 4.3 “Electrical connections to the CPH7650”).
2
Unit and resolution (submenu)
The calculated measured values of the two switch points and the hysteresis
can be reset by pressing the “0” button.
Unit of test item
10.000 Resolution:
1.00000 User:
mmHg inH2O kg/cm2
mmH2O cmH2O mH2O
Pa kPa MPa
cmHg inHg psi
hPa mbar bar
...Unit/Resolution
Customer-specific unit; with respect to bar
(input via numeric keypad)
Display resolution in operating mode via ◀ or ▶
(back with the [BACK] button)
Select and confirm (standard unit) via [◀], [▶], [▲] or [▼]