User Manual

Operating manual for the GT-400 appliance tester

BEHA-AMPROBE

selection

Since the limit value for the protective conductor resistance

measurement depends on the length of the protective conductor

of the test object among other factors, the menu allows the limit

value to be set according to the length (see also Section 8.2.)

Since the measurement of the protective conductor R

can be

performed in the Protection class I switch position and also in the

Cable test switch position, the menu allows definition of which

limit values are valid for each type of measurement.

After selecting the validity by briefly pressing the „START“ button

(< 2 s), the desired selection is confirmed by pressing the

„START“ button for a longer time (> 2 s), after which you then

reach the following menu:

Here, you select the length of the protective conductor of the

test object („START“ button < 2 s). The limit value resulting from

this selection is displayed in the upper status bar. The selected

limit value is then confirmed by pressing the „START“ button for a

longer time (> 2 s).

The maximum limit value that can be set is

≤≤

≤

≤ 1 Ohm. The limit

value is not permanently stored. This means that the limit value is

reset to

≤≤

≤ 0.3 Ohm when the device is manually switched off via

the rotary switch or when the device automatically switches off

after approx. 3 minutes.

Valid for protection

Valid for cable test

Valid for protection

class I and cable test