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 / R
L-N(L)
Where:
Un
115V (100 V
≤
U
L-N
<
160 V)
230V (160 V
≤
U
L-N
≤
264 V)
400V (264 V
>
U
L-N
≤
440 V)
Mains
voltage not
connected!
