Operating Instructions Model 300E Carbon Monoxide Analyzer
Instruction Manual
84 P/N 04288 REV: A
6.6.4. Electric Test
The Electric test function substitutes simulated signals for CO MEAS and CO 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.
To activate the Electric Test press:
SAMPLE RANGE = 50.0 PPM CO =
< TST TST > CAL
SETUP
SETUP C.3
CFG DAS RNGE PASS CLK
MORE
EXIT
SETUP C.3
COMM VARS
DIAG
HALT EXIT
Exit at Any
Time to Return
to main the
Sample Display
DIAG SIGNAL I / O
NEXT
ENTR
EXIT
Exit returns
to the
Diag Menu
SETUP C.3 ENTER DIAG PASS: 818
8 1 8
ENTR
EXIT
Repeat Pressing
NEXT
unti . . .
DIAG ELECTRIC TEST
PREV NEXT ENTR EXIT
Press
<TST TST>
to view Test
Functions
NOTE:
CO MEAS
and
CO REF
will be
artificially altered to enforce a CO
reading of
40.0
ppm.
All other Test Functions will report the
correct operational value
DIAG ELEC RANGE=50.0 PPM CO= 40.0
<TST TST> EXIT
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