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M400E Ozone Analyzer Operator’s Manual M400E Calibration Procedures
9.3.2.2. Zero/Span Point Calibration Procedure the Z/S Option Installed
If the M400E analyzer is set for either the AUTO or DUAL range modes, read Section 9.2.4 before proceeding.
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.
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.
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>
ENTR CONC EXIT
M-P CAL STABIL=XXXX PPB O3= XXXX
<TST TST> ENTR CONC
EXIT
The SPAN key now appears
during the transition from
zero to span.
You may see both keys.
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 CALZ CALS
SETUP
Set the Display to show
the
STABIL test function.
This function calculates
the stability of the O
3
measurement
Toggle TST> button until ...
SAMPLE STABIL=XXXX PPB O3= XXXX
<TST TST> CAL CALZ CALS SETUP
SAMPLE STABIL=XXXX PPB O3= XXXX
<TST TST> CAL CALZ CALS SETUP
SAMPLE STABIL=XXXX PPB O3= XXXX
<TST TST> CAL CALZ CALS SETUP
NOTE
If the ZERO or SPAN keys are not displayed, the measurement made during is out of the allowable range
allowed for a reliable calibration.
See Chapter 13 for troubleshooting tips.
04315 Rev. C1 161