Operation Manual VISATRON® VN115/87plus EX
06/2016
Page 44
SCHALLER AUTOMATION
D-66440 Blieskastel / Saarland / Germany / Industriering 14 / P.O Box 1280
Industrielle Automationstechnik GmbH & Co. KG
Tel. +49(0)6842-508
-
0
/ Fax -260 / eMail: [email protected] / www.schaller.de
5.8
Check for earth fault problem
Figure 47
isolation of earth fault problem
Measure contact
of Pin No. 7
against ground.
If short circuit:
problem is outside
the Oil Mist
Detector, maybe in
cabling system
Measure
contact of Pin
No. 8 against
ground.
If short circuit:
problem is
outside the Oil
Mist Detector,
maybe in
cabling system
Measure
resistance
between Pin
7 & 8. Must
be 33 kOhm
or due to
wire break
resistor
Measure
resistance
between Pin
7 and plug
earthing pin.
If short
circuit:
measuring
head has to
be replaced
Measure
resistance
between Pin
8 and plug
earthing pin.
If short
circuit:
measuring
head has to
be replaced
