Teledyne GFC-7000E - Trace CO2 Analyzer - Manual (Page 88)

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 ANALOG I / O CONFIGURATION
PREV NEXT ENTR EXIT
Continue pressing SET? until …
DIAG AIO AIN 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 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
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