JUMO safetyM TB/TW, Operating Instructions Manual

Page: 49 / 52

13 What if...
47
2011-12-31
Description Cause Remedy
Relay contact between
terminals 9, 10 or 9, 12
does not switch. - The fitted safety fuse in the pole arm 9 is
faulty.
h
Measure terminals 9 and 10 of the relay with
a continuity tester when LED K1 shows
green.
h
Measure terminals 9 and 12 of the relay with
a continuity tester when LED K1 is off
h
The instrument must be returned to JUMO
for repair.
v
Chapter 2.1 “Service addresses”
Double LED lit (green and
red simultaneously) - Internal system error - Switch the supply off and then back on again
If this does not help, the instrument must be
returned to JUMO for repair.
v
Chapter 2.1 “Service addresses”