KROHNE ALTOFLUX 2W IFM 4042K EN - Manual (Page 33)

Part B IFC 040 Signal converter Section 4.5 + 4.6
02/2001 ALTOFLUX 2W 33
4.5 Error messages in measuring mode
Warnings Description of error Eliminate error
Pipe (partially) empty Fill pipe
Poor grounding, or none at all Check grounding system
Electrical conductivity too low Check process liquid
Electrodes contaminated Clean electrodes
Pipe empty (1)
Electrode wire break Repair wires
Field coil defective Short-circuit, break, or excess
temperature Check and eliminate fault
Analog/digital converter (ADC)
defective Replace electronic unit
Primary head defective Replace primary head
K 50 constant incorrect Correct, see nameplate
Linearity
ADC zero incorrect Replace electronic unit
Low energy Energy too low for correct
measurements Voltage is less than 14 V,
increase energy
Overranging (2) ADC overranged Change Fct. 3.4 Limitation
Overflow current Measured value higher than full-
scale range Check device parameters and
correct if necessary
Overflow pulse (3) Pulse rate too high,
max. 1 / (1.5×pulse width) Check device parameters and
correct if necessary
Overflow counter Overflow of a counter Reset counter
Line interrupt (4) Power failure Delete error message and, if
necessary, reset counter
Fatal error Severe error, measurement
interrupted Replace electronic unit
(1) Is checked only when “Application“ is activated in Fct. 3.4
(2) Value for checking overranging is set in Fct. 3.4 "Application" relative to full-scale range
(3) Missing pulses are recovered at times when pulse rate is low
(4) Is checked only when a counter is activated in Fct. 1.4 "Display"
4.6 Reset counters and cancel error messages
Display texts Description and settings
... measuring mode ...
↵ Entry into RESET menu
FCt. 4.0
RESET MENUE
→
FCt. 4.1
ERROR RESET
↑
Resetting the messages
power failure and counter overflow
rESEt
NO
↑
YES
↵
FCt. 4.2
COUNTER RESET
→
Reset
all counters
rESEt
NO
↑
YES
↵