Teledyne 9110EH - Nitrogen Oxides Analyzer - Manual (Page 134)

Calibration Procedures Model 9110EH Instruction Manual
Connect the sources of zero air and span gas to the respective ports on the rear panel
(Figure 3-2) to follow the setup in Figure 7-4. Set the expected NO and NO
X
values
according to the procedure described in Section 7.2.
Perform the calibration or calibration check according to the following flow chart:
Wait until NOX
STB falls below
0.05 ppb. This
may take several
minutes. ZERO CAL M NOX STB=XXX.X PPB NOX=X.XX
< TST TST > ZERO CONC
EXIT returns to the
main SAMPLE
display
ZERO CAL M NOX STB=XXX.X PPB NOX=X.XX
< TST TST > ENTR CONC EXIT
Pressing ENTR changes the calibration of the instrument.
If either the ZERO or
SPAN button fails to
appear, see Chapter 11
for troubleshooting tips.
ANALYZER ENTERS
ZERO CAL MODE.
EXIT returns the unit to
SAMPLE mode without
changing the calibration
values.
ZERO CAL M NOX STB=XXX.X PPB NOX=X.X
< TST TST > ZERO CONC EXIT
ZERO CAL M NOX STB=XXX.X PPB NOX=X.X X
< TST TST > CAL CALZ CALS SETUP
SPAN CAL M NOX STB=XXX.X PPB NOX=X.XX
< TST TST > SPAN CONC EXIT
SPAN CAL M NOX STB=XXX.X PPB NOX=X.XX
< TST TST > ENTR CONC EXIT
EXIT returns to the
SAMPLE mode without
changing the calibration
values.
SPAN CAL M NOX STB=XXX.X PPB NOX=X.XX
< TST TST > SPAN CONC EXIT
ACTION:
Allow zero gas to enter the sample port at the
rear of the instrument.
SAMPLE RANGE = 500.0 PPB NOX= X.XX
< TST TST > CAL CALZ CALS SETUP
SAMPLE NOX STB=XXX.X PPB NO = X.XX
< TST TST > CAL CALZ CALS SETUP
Scroll the display to the NOX
STB test function. This function
calculates the stability of the
NO/NO
X
measurements.
The value of NOX
STB may jump
significantly. Wait
until it falls below 0.5
ppb. This may take
several minutes.
Pressing ENTR changes the calibration of the instrument.
Analyzer enters SPAN
CAL Mode.
7.5. Calibration with IZS Option
When using the IZS option to calibrate the M9110EH, the analyzer’s CAL_ON_NO2 feature
must be turned on. This feature enables a continuous zero gas flow across the IZS
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