INFICON Composer Elite Gas Concentration Monitor - Manual (Page 130)

8 - 2
PN
07
4-
56
6-
P1
B
Composer Elite Operating Manual
8.3 Failure Mode and Effects Analysis (FMEA)
Table 8-1 FMEA
Symptom Possible Cause Effect on Concentration
Accuracy Remedy
Error or Warning
message(s) displayed Refer to Table 5-22 on
page 5-32 and Table 5-23
on page 5-34 .
Various Refer to section 8.2, Errors
and Warnings, on page
8-1
.
Concentration displays
_ _ . _ _ _ _ Mole% Electronics failure. Invalid Concentration. Exchange Interconnect
cable. If symptom persists,
contact INFICON.
Concentration displays
_ _ . _ _ _ _ Mole% and
Temperature displays
99.999°C Interconnect cable
disconnected. Invalid Concentration Check Interconnect cable
connection. If symptom
persists, contact
INFICON.
Concentration offset
(minimal) when the total
gas flow through the
Acoustic Sensor is varied. Inlet and outlet tube
connections reversed. Concentration offset. Reverse the connections
to inlet and outlet tubes.
Concentration offset with
barometric pressure
change. Loose plug on Acoustic
Sensor service port. Concentration offset. Install new gasket (PN
059-0640) and tighten
plug. Perform Reference
Zero afterward (refer to
section 3.2, Calibration, on
page 3-2
).