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Emerson Process Management GmbH & Co. OHG8-14
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
8.3 Solving Problems Not Indicated by Status Messages
Situation Description Actions
Serial communication not
working properly
External failure
Check external circuitry for
failures
Connection failure
XPSA: If red LED "TIMEOUT"
glows - check connection to
P33
Check installation of interface
module (SIF xxx)
Fluctuating or invalid
readout
Leak in gas path Perform a leak test
Ambient air contains high
concentration of measured
gas component
Check absorber (at chopper/
measuring cell) and replace if
need be.
Replace photometer with
sealed version (option)
Purge instrument with neutral
gas
Fluctuating gas pressure
Check gas path before and
behind cell and sensor
Remove restriction behind
gas outlet
Reduce gas ow or pump rate
Sensor or detector not con-
nected
Check detectors connections
Electrochemical Oxygen sen-
sor worn-out
Check sensor and replace if
need be
IR channel:
Source not connected or de-
fective
Check connections:
X3 (1/2) / source channel 1
X3 (4/5) / source channel 2
If source housing is cold:
Exchange both source in case
of dual channel analyzer /
replace source if need be
(see service manual)
Analog preamplier of af-
fected channel defective
Check measuring point
(
8-4-2-1-6, page 8-19)