KROHNE IFC 110 Converter - Manual (Page 73)

Part C Special applications, functional checks, service, and order numbers Sect. 7.5
05/2003 IFC 110 F 73
Group I Faults / Symptoms Cause Remedial action
I 3 22 mA are available at Range of current output I is Check instrument parameters
current output (fault current) exceeded and correct if necessary
(see Sect. 2.2 and 5.7) or con-
sult KROHNE Service, having
first noted down hardware
information and error status,
see Sect. 7.3, Fct. 2.02.
I 4 22 mA are available at Fatal Error Replace signal converter or
current output (fault current) consult KROHNE Service,
and red LED flashes having first noted down hard-
ware information and error
status, see Sect. 7.3, Fct. 2.02
I 5 Unsteady display Electric conductivity of Increase time constant
process liquid too low (see Sect. 5.2, Fct. 1.2).
Also refer to Sect. 6.7.
I 6 Receiver instruments Control input C1 or C2 is Change setting (see Sect. 5.10,
indicate ”constant value” set to ”Hold outputs” and Fct. 1.11 and 1.12), or
is activated deactivate control input.
I 7 Jumping current values Current output is set to Change hysteresis or tripping
automatic range change ranges, see Sect. 5.20.
I 8 F/R-Mode: Different ranges set for Change setting,
different displays for identical ”forward flow” and see Sect. 5.15, Fct. 1.05
flow volumes in both ”reverse flow” ”Rev. range”.
directions
I 9 Receiver instruments Control input C1 or C2 is set Change setting (see
indicate ”min. values” to ”Zero outputs” or ”Hold Sect. 5.10, Fct. 1.11 and 1.12)
outputs” and is activated or deactivate control input.