Perform zero/span calibration, Step three – Teledyne 9110TH - Nitrogen Oxides Analyzer User Manual
Page 200

Model 9110TH NOx Analyzer
Calibration Procedures
Teledyne Analytical Instruments
180
STEP THREE:
Perform Zero/Span Calibration:
Press ENTR to changes
the OFFSET & SLOPE
values for both the NO
and NO
x
measurements.
Press EXIT to leave the
calibration unchanged and
return to the previous
menu.
SAMPLE
GAS TO CAL:NOX
NOX
O2
ENTR
EXIT
ZERO CAL M
NOX STB= XXX.X PPM
NOX=XXX.X
ZERO
CONC
EXIT
SAMPLE
RANGE TO CAL:LOW
LOW
HIGH
ENTR
EXIT
EXIT at this point
returns to the
SAMPLE menu.
Press ENTR to changes
the OFFSET & SLOPE
values for both the NO
and NO
x
measurements.
Press EXIT to leave the
calibration unchanged and
return to the previous
menu.
Set the Display to show
the NOX STB test
function.
This function calculates
the stability of the NO/NO
x
measurement
Toggle TST> button until ...
Allow zero gas to enter the sample port
at the rear of the analyzer.
Wait until NOX STB
falls below 0.5 ppm.
This may take several
minutes.
ZERO CAL M
NOX STB= XXX.X PPM
NOX=XXX.X
ENTR
CONC
EXIT
SAMPLE
GAS TO CAL:NOX
NOX
O2
ENTR
EXIT
SPAN CAL M
NOX STB= XXX.X PPM
NOX=X.XXX
SPAN
CONC
EXIT
SAMPLE
RANGE TO CAL:LOW
LOW
HIGH
ENTR
EXIT
Allow span gas to enter the sample port
at the rear of the analyzer.
Wait until NOX STB
falls below 0.5 ppm.
This may take several
minutes.
SPAN CAL M
NOX STB= XXX.X PPM
NOX=X.XXX
ENTR
CONC
EXIT
SPAN CAL M
NOX STB= XXX.X PPM
NOX=X.XXX
CONC
EXIT
Analyzers enters SPAN cal
mode and the SPAN key
appears.
You may see both
keysduring the transition
from ZERO to SPAN modes.
If either the ZERO or SPAN
buttons fail to appear see
Section 11 for
troubleshooting tips.
Analyzer continues to
cycle through NO
x
,
NO, and NO
2
measurements
throughout this
procedure.
SAMPLE
A1:NXCNC1=100PPM
NOX=XXX.X
< TST
TST >
CAL CALZ
CALS
SETUP
SAMPLE
NOX STB= XXX.X PPM
NOX=XXX.X
< TST TST > CAL
CALZ
CALS
SETUP
SAMPLE
NOX STB= XXX.X PPM
NOX=XXX.X
< TST TST > CAL CALZ
CALS
SETUP
Analyzers enters
ZERO cal
mode.
SAMPLE
NOX STB= XXX.X PPM
NOX=XXX.X
< TST TST > CAL
CALZ CALS
SETUP