Optic Test; Figure 4-31: Diag - Optic Test - Teledyne T100 Instruction Manual

Operating Instructions

4.8.5. OPTIC TEST

IMPORTANT
118
The optic test function tests the response of the PMT sensor by turning on an LED
located in the cooling block of the PMT (refer to Figure 9-18). 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 ensure 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.
Access the Optic Test from the DIAG Menu (refer to Figure 4-17), then press:
While the optic test is
activated, PMT should be
2000 mV ± 1000 mV
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.
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
DIAG SIGNAL I / O
PREV NEXT JUMP
Press NEXT until...
DIAG OPTIC TEST
PREV NEXT
DIAG OPTIC RANGE = 500.000 PPB
<TST TST>
Press TST until...
DIAG ELEC PMT = 2751 MV
<TST TST>
DIAG – Optic Test
Figure 4-31:
ENTR EXIT
ENTR EXIT
SO2=XXX.X
EXIT
SO2=XXX.X
EXIT