Sonel MPI-540 Brief User Manual

MPI-540 ● MPI-540-PV – BRIEF USER MANUAL
16
3.3 Voltage drop
This function determines the voltage drop between two points of the tested network, selected by the
user. The test is based on measurement of fault loop impedance L-N at these points. In a standard
network, usually the voltage drop is tested between the socket and the switchgear (reference point).
▼
 Select item ΔU.
 Use setting Zref= --- to reset
previous measurement, if it has
not been done yet.
 Enter the limit of voltage drop
ΔU
MAX
.
 Enter the fuse type, which pro-
tects the tested circuit.
 Connect the meter to the reference point of the tested network, as for Z
L-N
measurement
 Press START.
 Change the setting from Zref to Z.
 Connect the meter to the reference point, as for Z
L-N
measurement.
 Press START.

Sonel MPI-540 Specifications

General

Brand	Sonel
Model	MPI-540
Category	Measuring Instruments
Language	English