R Lowω, 200 Ma Resistance Measurement - MARTINDALE ET4000 Instruction Manual

Martindale ET4000 / ET4500
Continuity measurement procedure
Select R

LOWΩ
Set sub-function to (r1, rN, r2, R1+R2,

Enable and set the limit (optional).

Connect the test leads to the instrument.

Null the test lead resistance if required (see section 5.3.4 Nulling of test lead

resistance).
Disconnect the installation to be tested from the mains supply.

Connect the test leads to the installation wiring to be tested (see Figure 5.10 and

Figure 5.11: ).
Press the TEST key to perform the measurement.

After the measurement has finished store the result, if required, by pressing the

MEM key (ET4500 only).
Displayed result:
R.............. continuity resistance
R+ ........... result for positive test polarity
R- ............ result for negative test polarity
5.3.2 R LOWΩ, 200 mA resistance measurement
The resistance measurement is performed with automatic polarity reversal of the test
voltage.
R LOWΩ measurement procedure
Select R
 LOWΩ
Set sub-function to

Enable and set the limit (optional).

Connect the test leads to the instrument.

Null the test lead resistance if required (see section 5.3.4 Nulling of test lead

resistance).
Disconnect from the mains supply and discharge the installation to be tested.

Connect the test leads to the PE wiring to be tested.

Press the TEST key to perform the measurement.

After the measurement has finished store the result, if required, by pressing the

MEM key (ET4500 only).
function using the function selector switch.
Figure 5.12: Example of continuity result
function using the function selector switch.
R LOWΩ with UP / DOWN keys.
R2 or R1+RN) with UP / DOWN keys.
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Measurements