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Part 2
Signal converter IFC 090 D (D = display version) and
(cont’d)
Signal converter IFC 090 B (B = basic version), without display
but with HHT or CONFIG operator program (see Sect. 6.2)
Group P
Fault / Symptom
Cause
Remedial action
P 1
Totalizer connected but does
Incorrect connection/polarity
Connect properly,
not count any pulses
see Sect. 2.4 + 2.7.
Totalizer or external voltage
Check output (see Sect. 7.2)
source defective.
with new totalizer:
Test ok, check connection
cables and previous
totalizers and external voltage
source, and replace if
necessary.
Test faulty, pulse output
defective, replace signal
converter (see Sect. 8.7)
or contact Krohne Service.
Current output is external
Check connection and cables,
voltage source, short circuit
see Sect. 2.3, 2.4 + 2.7.
or current / pulse output
Voltage between I+ and I
⊥
defective
approx. 15 V. Switch off
device, eliminate short circuit,
switch device on again. If no
function, then current or pulse
output defective. Replace
signal converter (see Sect.
8.7) or contact Krohne
Service.
Pulse output is deactivated,
Switch on under Fct. 1.06.
see Fct. 1.06.
P 2
Unsteady pulse rate
Electrical conductivity of
Increase time constant under
product too low,
Fct. 1.02, or switch on.
time constant too low or
switched off for pulse
output.
P 3
Pulse rate too high or
Incorrect setting for
Change setting under Fct. 1.06.
too low.
pulse output.
