Optic Test - Teledyne T101 Operation Manual

Teledyne ML – T101 Operation Manual

4.6.4. OPTIC TEST

SAMPLE RANGE = 500.0 PPB
< TST TST > CAL
SAMPLE ENTER SETUP PASS : 818
8 1 8
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG
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.
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:
H2S =XXX.X
SETUP
ENTR EXIT
MORE EXIT
EXIT
DIAG SIGNAL I / O
NEXT
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>
NOTE
Operating Instructions
ENTR EXIT
ENTR EXIT
SO2=X.XXX
EXIT
SO2=X.XXX
EXIT
97