Multifunction Tester
Measurements
41
Note
If the L and N terminals are reversed, the Tester automatically swaps them internally
and continues tests. If the Tester is configured for UK operation, tests will stop and you
must determine why the L and N are swapped. The terminal indicator icons indicate
this condition.
Type A and type B RCDs do not have the 1000 mA option available. Type B RCDs do
not have the Var option available. When testing under a condition that would trip an
RCD, but does not (for example, reading is >310 ms), check the connections, leads, and
fuses.
To measure RCD tripping time:
1. Select the ΔT RCD - Trip TIME mode. See Figure 15.
Figure 15. RCD Trip Time Measurement Screen
2. Select RCD test polarity: 0° or 180°.
3. Select RCD current multiplier: x1/2, x1, x5, or Auto.
Functions Form
RCD Time
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