
CALIBRATION PROCEDURES
Model 400E Ozone Analyzer
Instruction Manual
172
P/N 04316 Rev: B
STEP TWO:
Set the expected O
3
Span Gas concentration.
SAMPLE RANGE = 500.0 PPB O3 =XXX.X
< TST TST >
CAL
SETUP
M-P CAL
RANGE = 500.0 PPB O3 =XXX.X
< TST TST > ZERO
CONC
EXIT
M-P CAL
O3 SPAN CONC:
400.0 Conc
0 0
4
0 0 .0
ENTR
EXIT
EXIT
2x’s to Return to the
Main
SAMPLE
Display
ENTR
stores the expected O3
span concentration value.
This sequence causes the
M400E to prompt for the
expected O3 span
concentration.
The O3 span concentration value automatically
defaults to
400.0 Conc
.
Make sure that you input the
ACTUAL
concentration value of the SPAN Gas.
To change this value to meet the actual
concentration of the SPAN Gas, enter the
number sequence by pressing the key under
each digit until the expected value is set.
NOTE
It is important to independently verify the
PRECISE
O
3
Concentration Value of the SPAN gas.