Gossen MetraWatt SECULIFE ST BASE 25, Operating Instructions Manual

Page: 72 / 112

72 Gossen Metrawatt GmbH
15.13 Testing Extension Cords for Correct Function – EL1
* No checking for reversed wires when the EL1 adapter is used
Attention!
!
This function permits an evaluation of the continuity of
the extension cord’s active conductors L(1, 2, 3) and N.
The PE conductor isn’t tested in this case.
Measurement at Single-Phase Extension Cords with EL1
Schematic Diagram
Wiring Diagram
Measurement at Single and 3-Phase Extension Cords with VL2E
Schematic Diagram
Wiring Diagram
Measurement at Single and 3-Phase Extension Cords with AT3-IIIE
Schematic Diagram
Wiring Diagram
Single Measurements, Rotary Switch Level: Green
Ro
ta
ry
Switc
h
Po
si
ti
o
n
Measuring Functions Meas. Type
Without Mains
to Test Socket
EL1 Extension cord test
with adapter for single or 3-phase extension cords for
testing for:
– Continuity
– Short-circuit
– Incorrect polarity (reversed wires *)
EL1 adapter
EL1 adapter (continu-
ity only)
AT3-IIIE adapter
VL2E adapter
Testing for Continuity
L(1/2/3), N Short-Circuit
Between:
L(1/2/3), N Polarity
Reversal /
Clockwise
Phase Sequence
EL1 adapter
X X —
EL1 adapter
(continuity only)
X — —
VL2E adapter
X X X
AT3-IIIE adapter
X X X
EL1