Instruction manual

Instruction Manual
748468-E
August 2003
3-2 Operation Rosemount Analytical Inc. A Division of Emerson Process Management
Model MicroCEM SHS
8. Verify output from analyzer. Adjust as
required. Refer to analyzer instruction
manual. When switching ranges, it is
the user’s responsibility to insure that
analyzer output is coordinated with
range change.
9. Verify operation of Thermoelectric
cooler high temperature and moisture
carryover contact closure and indicator
lights. Contacts will close on alarm.
Clear any alarms by correcting prob-
lem.
3-2 CALIBRATION
Analyzer may be manually or automatically
calibrated locally or through sample system
by analyzer controls.
Normally a calibration will be recommended
once every 24 hours or as determined by
user based on application requirements.
System has capability to manually intro-
duce zero and span gas near sample point,
through sample line, and through sample
system. The user should periodically com-
pare this value with zero and span gas ad-
mitted directly to analyzer to determine if
the system is contributing a bias.
The sample system should contribute less
than a 5% change. The cause of any larger
deviation should be determined and cor-
rected.
3-3 ROUTINE OPERATION
The system should operate continuously
unattended. Periodic visual inspection of
system should be made to insure that op-
erating parameters of system are correct.
Manual zero/span gas calibration recom-
mended once per 24 hour period or as de-
sired depending on application. This may
be adjusted based on actual operating ex-
perience. Refer to Analyzer Instruction
Manual for details.
For short term shutdown of system, intro-
duce nitrogen or zero gas to analyzer(s) for
10-15 minutes. For long term shutdown of
system, close sample inlet valve. Remove
power from system. Shut off all zero and
span gases and air to system.
IB-103-102