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Model 400E Ozone Analyzer
Instruction Manual
Operating Instructions
P/N 04316 Rev: B
109
To calibrate the O
3
Generator press:
SAMPLE RANGE = 500.0 PPB O3 =XXX.X
< TST TST > CAL
SETUP
SETUP X.X
CFG ACAL DAS
RNGE
PASS CLK
MORE
EXIT
SETUP X.X
COMM VARS
DIAG
HALT
EXIT
Exit at Any
Time to Return
to main the
SETUP Menu
DIAG
SIGNAL I / O
NEXT
ENTR
EXIT
Exit returns
to the
previous menu
SETUP X.X
ENTER DIAG PASS: 818
8 1 8
ENTR
EXIT
Repeat Pressing
NEXT
until . . .
DIAG DARK
O3 GEN CALIBRATION
PREV NEXT
ENTR
EXIT
DIAG O3GEN
O3 G EN CAL 1% COMPLETE
EXIT
DIAG DARK
CANCELLED
EXIT
Display
tracks %
complete
Returns to the
previous menu when
calibration is
complete
6.7.5.
Dark Calibration
The Dark Calibration Test turns off the Photometer UV Lamp and records any offset
signal level of the UV Detector-Preamp-Voltage to Frequency Converter circuitry.
This allows the instrument to compensate for any voltage levels inherent in the
Photometer detection circuit that might effect the output of the detector circuitry
and therefore the calculation of O
3
concentration.