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Model GFC7000E Instruction Manual Operating Instructions
04584 Rev A1 77
6.9.4.5. AIN Calibration
This is the sub-menu to conduct the analog input calibration. This calibration should only be
necessary after major repair such as a replacement of CPU, motherboard or power supplies.
Activate the ANALOG I/O CONFIGURATION MENU (see Section 6.9.1), then press:
Exit at any time to
return to the main
DIAG menu
DIAG
A
NALOG I / O CONFIGURATION
PREV
NEXT
ENTR
EXIT
Continue pressing SET? until …
DIAG AIO
A
IN CALIBRATED: NO
< SET SET> CAL EXIT
DIAG AIO AIN CALIBRATED: YES
< SET SET> CAL EXIT
Instrument
calibrates
automatically
Exit to return to the
ANALOG I/O
CONFIGURATION
MENU
STARTING FROM ANALOG I / O CONFIGURATION MENU
DIAG AIO CALIBRATING A/D ZERO
CALIBRATING A/D SPAN
6.9.5. Electric Test
The electric test function substitutes simulated signals for CO
2
MEAS and CO
2
REF, generated by
circuitry on the sync/demod board, for the output of the IR photo-detector. While in this mode the
user can also view the same test functions viewable from the main SAMPLE display. When the
test is running, the concentration reported on the front panel display should be 40.0 ppm.
Press
<TST TST>
to view Test Functions
NOTE:
CO MEAS
and
CO REF
will be artificially
altered to
enforce a CO
2
reading of
40.0
ppm.
All other Test Functions will report the correct operational
value
DIAG SIGNAL I / O
NEXT
ENTR
EXIT
Exit returns
to the
DIAG
Menu
Repeat Pressing
NEXT
unti . . .
DIAG
ELECTRIC TEST
PREV NEXT
ENTR
EXIT
DIAG ELEC RANGE=50.000 PPM
CO2= 40.0
<TST TST> EXIT
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SETUP
SAMPLE
ENTER SETUP PASS : 818
8 1 8
ENTR
EXIT
SETUP X.X
PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK
MORE
EXIT
SETUP X.X
SECONDARY SETUP MENU
COMM VARS
DIAG
ALRM EXIT