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Teledyne API – Model T400 Photometric Ozone Analyzer Getting Started
69
3.4.5.3. Initial Zero/Span Calibration Procedure:
To perform an initial Calibration of the Model T400 photometric ozone analyzer, press:
Press ENTR to changes
the OFFSET & SLOPE
values based on the zero
point measurement.
Press EXIT to leave the
calibration unchanged and
return to the previous
menu.
SAMPLE STABIL=XXXX PPB O3= XXXX
< TST TST > CAL SETUP
M-P CAL STABIL=XXXX PPB O3= XXXX
<TST TST> ZERO CONC EXIT
EXIT at this point
returns to the
SAMPLE menu.
Press ENTR to changes
the OFFSET & SLOPE
values based on the zero
point measurement.
Press EXIT to leave the
calibration unchanged and
return to the previous
menu.
Allow zero gas to enter the sample port
at the rear of the analyzer.
Wait until STABIL
falls below 1.0 PPB.
This may take several
minutes.
SAMPLE STABIL=XXXX PPB O3= XXXX
< TST TST > CAL SETUP
M-P CAL STABIL=XXXX PPB O3= XXXX
<TST TST> ENTR CONC EXIT
M-P CAL STABIL=XXXX PPB O3= XXXX
<TST TST> ZERO SPAN CONC EXIT
Allow span gas to enter the sample port
at the rear of the analyzer.
Wait until STABIL
falls below 1.0 PPB.
This may take several
minutes.
M-P CAL STABIL=XXXX PPB O3= XXXX
< TST TST > CAL SETUP
M-P CAL STABIL=XXXX PPB O3= XXXX
<TST TST> ENTR CONC EXIT
M-P CAL STABIL=XXXX PPB O3= XXXX
<TST TST> ENTR CONC EXIT
The SPAN button now
appears during the transition
from zero to span.
You may see both buttons.
If either the ZERO or SPAN
buttons fail to appear see
Section 11 for
troubleshooting tips.
SAMPLE RANGE=500.0 PPB O3= XXXX
<TST TST> CAL SETUP
Set the Display to show
the STABIL test function.
This function calculates
the stability of the O
3
measurement
Toggle TST> button until ...
The Model T400 Analyzer is now ready for operation.
06870C DCN6332