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Teledyne API Model 100AH SO
2
Analyzer Instruction Manual, 02417, Rev. D
7.3 TEST Commands and Messages
Table 7-7: RS-232 Test Messages
Name Message Description
RANGE
1
RANGE=xxxxx PPM
2
Analyzer range
STABILITY STABIL=xxxx.x PPM Std. Deviation of last 25 SO
2
concentration values
VACUUM PRES=xxx.x IN-HG-A Reaction cell pressure
SAMPPRESS PRES=xxx.x IN-HG-A Sample pressure
SAMPFLOW SAMPLE FL=xxx
CC/M
Sample flow rate
PMTDET PMT=xxxxxx MV PMT output
UVDET UV LAMP=xxxx MV Instantaneous UV lamp reading
LAMPRATIO LAMP RATIO=xx.x% Ratio of UV lamp reading to calibrated
UV lamp reading
STRAYLIGHT STR LGT=xxx.x PPM Stray light level
DARKPMT DRK PMT=xx.x MV PMT dark current in MV
DARKLAMP DRK LMP=xx.x MV UV detector dark current in MV
SLOPE SLOPE=x.xxx Calibration slope parameter
OFFSET OFFSET=xxx.x MV Calibration offset parameter
HVPS HVPS=xxxxx V High voltage power supply
DCPS DCPS=xxxxxx MV DC power supply
RCELLTEMP RCELL TEMP=xxx C Reaction cell temperature
BOXTEMP BOX TEMP=xxx C Internal box temperature
PMTTEMP PMT TEMP=xxx C PMT temperature
SO2 SO2=xxxx.x SO
2
concentration
TESTCHAN
3
TEST=xxxx.x MV Test channel output
CLOCKTIME TIME=HH:MM:SS Time of day
1
Displayed when single or autorange is enabled.
2
Depends on which units are currently selected.
3
Only if test channel is selected.
7-8