METREL MD 1000-LED Bedienungsanleitung Seite 5

MD 1000-LED
6.) Rotary field testing:
Identify a phase conducting wire as described in point 5. Now connect two phase
conductors to the probe tips and touch the finger contact. If the phase connected to
probe tip L2 follows the phase connected to probe tip L1, the phase sequence is right-
handed. The small display indicates "L1". If this is not the case, there is a left-handed
field. The voltage indicator should give a reading of approx. 400V. If "Pol/L1"appears
and the only reading is 230V, only one phase conductor is connected.
7.) Continuity testing:
Bring the probe tips into contact with the conductor, fuse, etc. that is being tested. With
resistances of 0-500 kW  the "Rx/W" LED lights on and an acoustic signal sounds.
8.) FI/RCD trigger test, PE (zero conductor test):
The MD 1000-LED Profi LED is equipped with an automatic load, which permits the
throughput testing of FI/RCD- safety switches without triggering. The initial task is to
carry out testing between L (phase conductor) and N (zero conductor) (approx. 5s).
With immediate connection, L can be tested against PE (earth/ground). The network
voltage is indicated. If this is not so, the FI/RCD safety switch is triggered (max. 30mA).
9.) Battery replacement:
To replace the batteries, release the screw under the main casing and pull the battery
compartment cover downward to remove. Observe the correct polarity when inserting
the new batteries.
Note: Batteries should not be disposed of as normal household waste. Take them to an
approved collection point.
5