FS-9100OM
– REV B
8
Copyright 2020 Baker Hughes Holdings LLC. All rights reserved
be compared with the initial values. If a significant reduction in the signal level is noticed, then it is recommended
that the lens be cleaned at the next opportunity (with the fired equipment shut down and cold). Clean the sensor
window with isopropyl alcohol or other residue free solvent compatible with sapphire. Apply a small amount of
anti-sieze compound to threads of sight tube prior to installation. Be sure the amount is minimal and only applied
below the 2
nd
thread. If anti-sieze compound is applied to the face of the sight tube, upon heating, it can fog the
window of the Flame Tracker Lite.
4
TROUBLESHOOTING
4.1 WARNING
Do not disconnect connector while circuit is energized (or live), unless area is known to be non-hazardous.
4.2 CAUTION
The operating temperature range of the Flame Sensor is
-40°C to 120°C
.
Do not
attempt to touch the flame
sensor or the cable until they have cooled to a safe handling temperature.
PROBLEM
POSSIBLE CAUSES
SOLUTION
No current flow
Reversed polarity
Open wire
Change polarity
Check connections
Low sensitivity during checkout or
operation
Dirty lens
Grounded cable
Clean lens (Section 4)
Check cable for grounds
Low flame intensity signal during
operation
Misalignment of the sight tube
Check the squareness of all flanges
and pipes of the sensor mount. Verify
that the sensors have a clear view of
the primary combustion zone of the
flame.
