KROHNE IFC 210 E-EEx EN - Manual (Page 69)

Part C Special applications, functional checks, service, and order numbers Sect. 7.4
05/2002 IFC 210 E 69
Group I Fault / Symptom Cause Remedial action
I 2 Unsteady display – Process product conductivity
too low, particles/air inclusions
too large or inhomogeneous
– Pulsating flow
– Time constant too low or
switched off.
Increase time constant,
see Fct. 1.02
Group P Fault / Symptom Cause Remedial action
Incorrect connection/polarity Connect properly, see Sect. 2.4.
Totalizer or external voltage
source defective. Check output (see Sect. 7.2) 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. 8.3) or
contact KROHNE Service.
Current output is external
voltage source, short circuit
or current / pulse output defective Check connection and cables,
see Sect. 2.4. Voltage between
I+ and I
⊥
(connecting block XC
Pins d16 and z18), approx. 24 V.
Switch off device, eliminate short-
circuit, and switch device on again.
If no function, then current or pulse
output defective. Replace signal
converter (see Sect. 8.3) or contact
KROHNE Service.
P 1 Totalizer connected but does
not count any pulses
Pulse output is deactivated,
see Fct. 1.06. Switch on under Fct. 1.06.
P 2 Unsteady pulse rate – Process product conductivity
too low, particles/air inclusions
too large or inhomogeneous
– Pulsating flow
– Time constant too low or
activated only for current output I
Increase or switch on time
constant, under Fct. 1.02 or switch
on if necessary.
P 3 Pulse rate too high or too
low. Incorrect setting for pulse output. Change setting under Fct. 1.06.
Group B
B 1 No function Faulty connection Connect properly, see Sect. 2.4.
Output/input defective Replace electronics unit of signal
converter, see Sect. 8.3
External or internal voltage source
not supplying voltage Check voltage source, rectify any
short-circuit or replace defective
voltage source.
Receiver instruments faulty Check connection, if necessary
replace receiver instruments.
Function setting faulty Correct function settings.
Gruppe D / I / P / B
D / I / P / B 1 Unsteady display and outputs – Process product conductivity
too low, particles/air inclusions
too large or inhomogeneous
– Pulsating flow
– Time constant too low
Increase time constant,
under Fct. 1.02
Power supply OFF Power supply ON D / I / P / B 2 No display and
no function of outputs
Check power fuse F5. Replace if defective, see Sect. 8.2.