MARTINDALE ET4000 Instruction Manual page 57

Martindale ET4000 / ET4500
PE terminal test procedure
Connect the test leads to the instrument.

Connect the test leads to the installation under test ( see Figure 5.38)

Touch the TEST key for at least one second.

If the PE terminal is connected to phase voltage the warning message is

displayed, the instrument buzzer is activated, and further measurements are
disabled in Zloop, Zline and RCD functions.
Warning:
If a dangerous voltage is detected on the tested PE terminal, immediately stop all
measurements, find and remove the fault. Maintenance should only be carried
out by a competent electrician who is familiar with the relevant regulations, the
safety risks involved and the consequent normal safe working practices.
Testing considerations
The PE test terminal is NOT active in the Voltage, R

functions.
The PE test terminal will not operate if the operator's body is completely

insulated from the floor or walls.
For correct testing, the TEST key has to be touched for a few seconds.

Always stand on a non-isolated floor while carrying out the test, otherwise the

test result may be incorrect.
LOWΩ
57
Measurements
, Earth and Insulation