KROHNE IFC 090 Converter EN - Manual (Page 59)

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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 S Fault / Symptom Cause Remedial action
S 1 No function Incorrect connection/polarity Connect properly,
of status display see Sect. 2.5 + 2.7.
Status display or output Set status output under Fct. 1.07
defective or external to “F/R INDIC.” (flow direction)
voltage source not and check (see Sect. 7.2)
supplying voltage. with new status display:
Test ok, check previous
status display and external
voltage source, and replace
if necessary.
Test faulty, status output
defective, replace signal
converter (see Sect. 8.7) or
contact Krohne Service.
Output terminal B1 or B2 Change setting under
not set to “status output” Fct. 3.07
Group D/I/P/S Fault / Symptom Caus Remedial action
D / I / P / S 1 Unsteady display and Electrical conductivity Increase time constant under
outputs of product too low, Fct. 1.02.
time constant too low.
D / I / P / S 2 No display and no Power OFF Switch power on.
function of outputs
Check power fuse(s) Replace if defective,
F1 (F1 + F2 for DC). see Sect. 8.1.
Group C Fault / Symptom Cause Remedial action
C 1 No function Connection is incorrect Connect properly,
see Sect. 2.6 + 2.7
Control input C Check connection, cables
or external voltage and external voltage source,
source defective see Sect. 2.6 + 2.7
Output terminal Change setting under
B1 or B2 not set to Fct. 3.07.
“control input”