Instruction Manual DualScat Ex
10118E/5
39
6.2
Fault messages
If a malfunction occurs during operation, the display shows
**** Fault ****
with a fault message that can help pinpoint the cause of
the trouble.
Message
Means
Possible causes
Connection
lost ...
The connection be-
tween the control unit
and the photometer is
lost.
-
Open connection to photometer
-
Defective electronics
Service technician
Sealing
The moisture monitor
in the DualScat Ex has
responded.
-
Desiccant in sensor head is
moist
Section 5.3
-
Desiccant in Ex enclosure is
moist
Section 5.2
-
Moisture indicator defective
Service technician
-
The seals in the sensor head are
defective
Service technician
Remove the photometer
from the product pipe immedi-
ately to prevent flooding of the
sensor head!
Light source
The detectors are not
receiving any light.
-
Turbidity excessively high
(>
2000 NTU) in the product
pipe
-
Severely fouled sensor head
Section 5.4
-
Defective light source
Service technician
Measurement
The detectors are re-
ceiving too much light.
-
Photometer not installed in the
product pipe
-
The cover on the mounting
flange opposite the photometer
is not in place
Section 3.1
-
Air bubbles/foam in the product
pipe
-
External light near the detection
point (e.g. inspection window)
-
DualScat Ex electronics defec-
tive
Service technician
SensorCheck
The automatic system
check has failed.
-
Too much external light near
the detection point (e.g. inspec-
tion window)
-
Defective optics/electronics
Service technician
Summary of Contents for DualScat Ex
Page 2: ... SIGRIST PHOTOMETER AG Subject to change without notice 9 2016 ...
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Page 54: ...Instruction Manual DualScat Ex 48 10118E 5 11 Appendix ...