Amprobe MEGATEST-1000 Megohmmeter - Manual (Page 16)

3. Connect the test leads to the object which is to be tested after deactivating the
circuit to be tested and all the relative loads (see previous picture).
4.
By means of U
n
select the test voltage suitable for the type of test to be
carried out. The values to be selected are:
U
n
• 50V (test on telecommunications systems)
• 100V
• 250V
• 500V
• 1000V
5. If the mode "TIMER" was selected use the following keys to set the duration time of
the test:
press this key to increase the duration time of the test (Tmax=999 seconds).
▲
▼
press this key to decrease the duration time of the test (Tmin=10 seconds).
o
ATTENTION:
If “Measuring” is displayed the instrument is taking the
measurement. During this phase do not disconnect the test
leads as the circuit under test may remain charged at a
dangerous voltage due to the parasite capacities of the
installation. Independently of the working mode selected the
instrument throws a resistance in the output terminals at the
end of each test to discharge the parasite capacities of the
circuit.
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