SIGRIST TurBiScat PM 40 User Manual

Troubleshooting
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Code Message Description Possible causes
W27 ADJUSTMENT Adjustment of the device could not
be carried out
l Device is soiled
l Nominal value for adjustment
does not match the value of the
medium
W28 SENSOR CHECK Automatic sensor check failed l Too much external light near the
measuring cell (e.g. sight glass)
l Device open
l Defective optics/electronics
Contact service engineer
W29 OVERTEMP Temperature in the device has ex-
ceeded 65 °C
l Medium or ambient temperature
too high
l No or defective cooling unit
W30 HUMIDITY Relative humidity in the device
above the set limit value
l Desiccant is saturated
l Housing seal defective
l Device was open too long
W33
...
W40
CURRENT 1...8 Current output is disturbed l Open connection terminals
l Interruption in the current loop of
the measured value output
Contact service engineer
W41 TEMP.SENSOR Inner temperature sensor has failed l Defective electronics
Contact service engineer
W43 EXTERNAL ON An external event is signalled via a
digital input
l External fault
W53 IO_PORT Communication interruption to touch
screen
l Defective electronics
Contact service engineer
W57 ABSORPTION TOO
HIGH
Light beam blocked by the measur-
ing cell
l Very dark medium or foam
W78 SERVICE Indicates when maintenance is due l Contact service engineer
11.4 Fault messages
The following fault messages may be displayed during operation.
Code Message Description Possible causes
E8 SERIAL 1 Communication interruption be-
tween main controller and sensor
board
l Defective electronics
Contact service engineer
E16 U ANALOG One of the internal analogue volt-
ages is outside the permissible
range
l Defective electronics
Contact service engineer
E17 MEASURING FAULT Measurement value acquisition is
disturbed
l Instrument not in process line
l Air bubbles present in the medium
l Extraneous light near the measur-
ing point (e.g. sight glass)
l Defective electronics
Contact service engineer
E19 LIGHT SOURCE 1 Detector for monitoring the light
source is not receiving light from the
corresponding light source.
l Defective light source
Contact service engineer

SIGRIST TurBiScat PM 40 Specifications

General

Brand	SIGRIST
Model	TurBiScat PM 40
Category	Measuring Instruments
Language	English