Teledyne T101, Operation Manual, Page: 103 / 375

Teledyne ML – T101 Operation Manual Operating Instructions
99
4.6.6. LAMP CALIBRATION
An important factor in accurately determining H
2
S concentration, once the H
2
S is
converted to SO
2,
is the amount of UV light available to transform the SO
2
into SO
2
*
(see Sections 10.1.1 and 10.1.2). The Model T101 compensates for variations in the
intensity of the available UV light by adjusting the H
2
S concentration calculation using a
ratio ( LAMP RATIO ) that results from dividing the current UV lamp ( UV LAMP)
intensity by a value stored in the CPU’s memory ( LAMP_CAL ). Both LAMP Ratio and
UV Lamp are test functions viewable from the instrument’s front panel.
To cause the analyzer to measure and record a value for LAMP_CAL , press:
Exit at
any time
to return
to main
the
SETUP
menu
DIAG SIGNAL I / O
NEXT ENTR EXIT
Repeat Pressing NEXT until . .
.
DIAG LAMP CALIBRATION
PREV NEXT ENTR EXIT
DIAG FCAL LAMP CAL VALUE:4262.4 mV
4 2 6 2 .4 ENTR EXIT
E NTR accepts the
new value
EXIT ignores the new
value
The value displayed is the
current output of the UV
source reference detector
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG EXIT
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