MI 2087 AL2 EasiTEST Measurement instructions
31
Fig. 25: L-N(L) voltage and frequency measurement
q Check the frequency of mains voltage by pressing the DISPLAY key; see the
figure above (right side).
Step 2
q Connect test cable to the tested object (mains outlet or other test terminals),
according to the figure 24 (phase to neutral measurement) or according to the
figure below (phase to phase measurement) .
Fig. 26: Phase to phase measurement
Step 3
q Press the START key and release it. Measurement will be carried out and
result displayed afterwards.
q Check calculated Prospective Short-circuit Current by pressing the DISPLAY
key.
The current is calculated as follows: Ipsc = Un⋅1,06 / RL-N(L)
Where:
Un 115V (100 V ≤ UL-N < 160 V)
230V (160 V ≤ UL-N ≤ 264 V)
400V (264 V > UL-N ≤ 440 V)
Mains
voltage not
connected!
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