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M400E Ozone Analyzer Operator’s Manual M400E Calibration Procedures
9.6. CALIBRATION THE IZS OPTION O
3
GENERATOR
The following procedure calibrates to output of the O
3
generator that is included in the IZS calibration valve
option ( OPT-51A). This function:
Drives the IZS O
3
Generator to output a series of O
3
levels between zero and full scale;
Measures the actual O
3
output at each level, and;
Records the generator lamp drive voltage and generator’s O
3
output level in a lookup table.
Whenever a certain O
3
output level is requested, the instrument’s CPU uses the data in this table to interpolate
the correct drive voltage for the desired O
3
output.
NOTE
Because the instrument waits 5–7 minutes at each step for the O3 level to stabilize, this calibration
operation often takes more than one hour to complete.
To calibrate the O
3
Generator press:
DIAG O3GEN O3 GEN CAL [X]% COMPLETE
PREV NEXT EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SAMPLE RANGE=500.0 PPB O3= XXXX
<TST TST> CAL SETUP
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG EXIT
SETUP X.X ENTER PASSWORD:818
8 1 8 ENTR
EXIT
DIAG SIGNAL I/O
PREV NEXT
ENTR EXIT
Continue pressing NEXT until ...
DIAG O3GEN CANCELLED
PREV NEXT EXIT
Analyzer returns to the
previous menu when the
calibration operation is
complete
DIAG O3 GEN CALIBRATION
PREV NEXT ENTR EXIT
Display tracks
the % of test
completes
04315 Rev. C1 169