7. Press and release the test button to start the test.
If the AUTO start function is enabled testing will start as
soon as the instrument detects a live circuit, Refer to 15.9.3
AUTO start test on page 86.
The instrument automatically carries out the ramp test.
During the test, the test current is shown on an analogue
arc in the main display area.
If the RCD trips, the test stops and the current at which it tripped is shown in the main display area.
If the RCD does not trip, the test stops when the current reaches 110% of the RCD rating.
13.8 Touch-voltage test
The instrument automatically carries out a touch-voltage test before starting any of the RCD tests or the automatic
test sequence. The result of this is shown in the low left window on the display.
The result is shown for the 1 x I test as this is relevant to the rating of the RCD fitted.
Follow these instructions if you want to carry out a touch-voltage test separately from the RCD tests. The advantage
is you don’t need to trip an RCD to establish the touch voltage for the circuit.
1. Turn the left-hand rotary knob to the RCD test position
(RCD).
The display illuminates with a yellow background.
2. For two-wire testing, plug your L (red) test lead into the red
socket and your PE test lead into the green socket.
2.1. For three-wire testing, plug your L (red) test lead into
the red socket, your PE (green) test lead into the green
socket and your N (blue) test lead into the blue socket.
or
3. Repeatedly press Hot key 2 until the type of RCD you are
testing is shown.
3.1. Alternatively, press Hot key 2 once and use the right-
hand rotary knob to select the type of RCD you are
testing.
4. Repeatedly press Hot key 4 until the current rating of the
RCD you are testing is shown.
4.1. Alternatively, press Hot key 4 once and use the right-
hand rotary knob to select the current rating of the
RCD you are testing.
5. Repeatedly press Hot key 5 until the touch-voltage test
(Touch V) is shown.
5.1. Alternatively, press Hot key 5 once and use the right-
hand rotary knob to select the touch-voltage test.
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Residual current device (RCD) testing
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