Beha-Amprobe Telaris Série Guide D'utilisation page 19

You can also use the tester to perform the RCD tripping time test in Auto mode, which
makes it easier for one person to perform the test.
Note: When measuring trip time for any type of RCD, the tester first does a pretest to
determine if the actual test will cause a fault voltage exceeding the limit (25 or 50 V).
To avoid having an inaccurate trip time for S type (time delay) RCDs, a 30 second delay is
activated between the pretest and the actual test. This RCD type needs a delay because it
contains RC circuits that are required to settle before applying the full test.
WWarning
• Leakage currents in the circuit following the residual current protection device may
influence measurements.
• The displayed fault voltage relates to the rated residual current of the RCD.
• Potential fields of other earthing installations may influence the measurement.
• Equipment (motors, capacitors) connected downstream of the RCD may cause
considerable extension of the tripping time.
Note: If the L and N terminals are reversed, the tester will auto-swap them internally and
continue testing. If the tester is configured for UK operation, testing will halt and you will
need to determine why the L and N are swapped.
This condition is indicated by symbol (
Type A and type B RCDs do not have the 1000 mA option available.
To measure RCD tripping time:
1. Turn the rotary switch to the
2. Press F1 to select the RCD current rating (10, 30, 100, 300, 500, or 1000 mA).
3. Press F2 to select a test current multiplier (x ½, x 1, x 5, or Auto). Normally you will use x
1 for this test.
4. Press F3 to select the RCD test-current waveform:
– AC current to test type AC (standard AC RCD) and type A (pulse-DC sensitive RCD)
– Half-wave current to test type A (pulse-DC sensitive RCD)
– Delayed response to test S-type AC (time delayed AC RCD)
– Delayed response to S-type A (time delayed pulse-DC sensitive RCD)
– Smooth-DC current to test type B RCD
– Delayed response to S-type B (time delayed smooth-DC current RCD)
5. Press F4 to select the test current phase, 0° or 180°. RCDs should be tested with both
phase settings, as their response time can vary significantly depending on the phase
Note: For RCD type B (
settings, all three test leads are required.
6. Press and release
• The primary (upper) display shows the trip time.
• The secondary (lower) display shows the fault voltage related to the rated residual
current.
).
position.
) or S-type B (
. Wait for the test to complete.
), you must test with both phase
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