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Model 360E Instruction Manual Calibration Procedures
STEP THREE: Perform the zero/span calibration. Zero and span checks using the zero/span valve option are
similar to that described in Section 7.2, except that zero air and span gas is supplied to the analyzer through the
zero/span valves rather than through the sample inlet port.
The zero and cal operations are initiated directly and independently with dedicated keys (CALZ & CALS).
M-P CAL STABIL=XXX.X PPM CO2 =XXX.X
< TST TST > ENTR CONC EXIT
M-P CAL STABIL=XXX.X PPM CO2 =XXX.X
< TST TST > CAL CALZ CALS SETUP
M-P CAL STABIL=XXX.X PPM CO2 =XXX.X
< TST TST > ZERO CONC EXIT
E
X
IT returns to the main
SAMPLE display
A
CTION:
Allow zero gas to enter the sample port at the
rear of the instrument.
M-P CAL STABIL=XXX.X PPM CO2 =XXX.X
< TST TST > SPAN CONC EXIT
M-P CAL RANGE = 500.000 PPM CO2 =XXX.X
< TST TST > ENTR SPAN CONC EXIT
M-P CAL RANGE = 500.000 PPM CO2 =XXX.X
< TST TST > ENTR CONC EXIT
Wait until STABIL
falls below1.0 ppm.
This may take several
minutes.
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 = 500.000 PPM CO2 =XXX.X
<TST TST> CAL CALZ CALS SETUP
SAMPLE STABIL=XXX.X PPM CO2 =XXX.X
< TST TST > CAL CALZ CALS SETUP
Set the Display to show the
STABIL test function.
This function calculates the
stability of the CO
x
measurement
Press ENTR to changes the
OFFSET & SLOPE values for the
CO
2
measurements.
Press EXIT to leave the calibration
unchanged and return to the
previous menu.
A
CTION:
Allow span gas to enter the sample port at the
rear of the instrument.
The value of
STABIL may jump
significantly.
Wait until it falls back
below 1.0 ppm.
This may take several
minutes.
Press ENTR to change the
OFFSET & SLOPE values for the
CO
2
measurements.
Press EXIT to leave the calibration
unchanged and return to the
previous menu.
05232 Rev B3 145