Teledyne GFC-7000T - Trace CO2 Analyzer - manual - Manual (Page 154)

Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 136
6.13.5. 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.
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
Press <TST TST> to view Test Functions
NOTE: CO
2 MEAS and CO
2 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
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X ENTER DIAG PASS: 818
8 1 8
ENTR EXIT