MI 3295 Step Contact Voltage Measuring System
Measurements
34
Connections for current measurement
For connections see
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and
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.
Figure 7.20: Examples of current measurement results
Displayed result for current measurement:
I............... current
7.4 Earth resistance
7.4.1 Earth resistance measurement
Figure 7.21:
Earth resistance screen
Earth resistance measurements
Select
EARTH
function using the function selector switch.
Select
EARTH RE
sub-function using the cursor UP / DOWN keys.
Connect C2/E test lead and ES potential lead to main earthing point.
Connect C1/H test lead to current probe.
Connect S potential lead to potential probe.
Press the TEST key to perform the measurement.
Store the result with MEM key (optional).
Connections for earth resistance measurement
Figure 7.22: Example of earth resistance measurement result
Displayed results for earth resistance measurement:
R ............. Earth resistance,
Rp ........... Resistance of S (potential) probe,
Rc ........... Resistance of H (current) probe.
