BOREAL LASER GasFinderMC-2, Руководство по эксплуатации

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7.2
Boreal Laser Inc. GasFinderMC Operation Manual — Troubleshooting July 17th 2017
Symptom:
Symptom:
Solution:
Symptom:
Solution:
Solution:
The display always shows “TEC Failure Laser Diode Off Line“. •
If a problem develops with the T hermo E lectric C ooler
(TEC) or the associated electronics, the system will
protect the laser diode by shutting the laser off and
the display will read:
In this situation, the operator should contact Boreal Laser Inc. for further
information on resolving the problem.
The display shows “Cal. Err!”. •
If the system has diffi culty verifying the internal calibration, the “ Cal. Err! ” display
will fl ash. In this situation, the concentration reading from the instrument may
not be valid.
In some cases, especially if the system has been subjected to large variations
in temperature, the problem can be resolved by switching the unit off, waiting a
minute, and switching the unit back on
.
If the display still shows “Cal. Err!” , collect an Arrays Transfer File (see page 7.4) and
send it to Boreal Laser Inc. together with 30min of data from the .gvl text fi le. This
will allow Boreal Laser Inc. to diagnose the problem.
Periodically, strings containing diagnostic data ($GFDBG) are sent from the
GasFinderMC . These can be seen in the ViewData window of the GasViewMC
program. If the centreline duty cycle is below 300 or above 800 (in the example
below it is 912) it would be advisable to contact Boreal Laser Inc. for further
instructions.
$GFDBG, 32.6, 912, 9332, 98, 0, 1244, 2002/03/01 00:30:28, *56
The display reads “Unlocked No Reading”. •
If the signal being analysed by the onboard electronics falls below a certain set
value, and the returning light level is within the acceptable bounds, problems
may exist with the internal receiver electronics.
If this situation persists, collect an Arrays Transfer File and send it to Boreal
Laser Inc. together with at least 30 minutes of data from the .gvl text fi le.
This will allow Boreal Laser Inc. to diagnose the problem.
ppm NH3 R2
Cal. Err!
TEC Failure
Laser Diode Off Line
centreline_duty_cycle
Unlocked
No Reading