Teledyne T101 Operation Manual page 172

Calibration Procedures
The SPAN button now
appears during the
transition from zero to span.
You may see both buttons.
If the ZERO or SPAN buttons are not displayed during zero or span calibration, the
measured concentration value is too different from the expected value and the analyzer
Consult Section 9.3 for more information on calibration problems.
168
STEP THREE: Perform the zero/span calibration:
SAMPLE RANGE = 500.0 PPB
< TST TST > CAL
SAMPLE RANGE = 500.0 PPB
< TST TST > CAL
Allow zero gas to enter the sample port at the
rear of the instrument.
M-P CAL H2S STB=X.XXX PPB
< TST TST > CAL
M-P CAL H2S STB=X.XXX PPB
< TST TST > ZERO
M-P CAL H2S STB=X.XXX PPB
< TST TST > ENTR
Allow span gas to enter the sample port at the
rear of the instrument.
M-P CAL H2S STB=X.XXX PPB
< TST TST >
M-P CAL RANGE = 500.0 PPB
< TST TST > ENTR
M-P CAL RANGE = 500.0 PPB
< TST TST > ENTR
does not allow zeroing or spanning the instrument.
H2S =XXX.X
SETUP
H2S =XXX.X
SETUP
ACTION:
H2S =XXX.X
SETUP
H2S =XXX.X
CONC EXIT
H2S =XXX.X
CONC EXIT
ACTION:
H2S =XXX.X
SPAN CONC EXIT
H2S =XXX.X
SPAN CONC EXIT
H2S =XXX.X
CONC EXIT
NOTE
Teledyne ML – T101 Operation Manual
Set the Display to show the H2S
STB test function.
This function calculates the
stability of the H S
2
measurement
Wait until H2S STB
falls below 0.5 ppb.
This may take several
minutes.
Press ENTR to changes the
OFFSET & SLOPE values for the
H S measurements.
2
Press EXIT to leave the calibration
unchanged and return to the
previous menu.
The value of
H2S STB may jump
significantly.
Wait until it falls back
below 0.5 ppb.
This may take several
minutes.
Press ENTR to change the
OFFSET & SLOPE values for the
H S measurements.
2
Press EXIT to leave the calibration
unchanged and return to the
previous menu.
EXIT returns to the main
SAMPLE display