Teledyne T101 Manual de usuario Pagina 99

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Teledyne API – T101 Operation Manual Operating Instructions
97
4.6.4. OPTIC TEST
The optic test function tests the response of the PMT sensor by turning on an LED located
in the cooling block of the PMT (Fig. 10-15). The analyzer uses the light emitted from the
LED to test its photo-electronic subsystem, including the PMT and the current to voltage
converter on the pre-amplifier board. To make sure that the analyzer measures only the
light coming from the LED, the analyzer should be supplied with zero air. The optic test
should produce a PMT signal of about 2000±1000 mV. To activate the electrical test
press:
SAMPLE RANGE = 500.0 PPB H2S =XXX.X
< 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 EXIT
DIAG SIGNAL I / O
NEXT ENTR EXIT
DIAG OPTIC RANGE = 500 .000 PP B SO2=X. XX X
<TST TST> EXIT
Press NEXT until…
DIAG OPTIC TEST
PREV NEXT ENTR EXIT
Press TST until…
DIAG ELEC PMT = 2751 MV S O2=X.XXX
<TST TST> EXIT
While the optic test is activated,
PMT sh oul d be 2000 mV ± 1000 mV
NOTE
This is a coarse test for functionality and not an accurate calibration tool. The resulting
PMT signal can vary significantly over time and also changes with low-level calibration.
07266B DCN6485
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