Automatic Calibration/Checks (Autocal) - Teledyne T101 Operation Manual

Teledyne ML – T101 Operation Manual

6.9. AUTOMATIC CALIBRATION/CHECKS (AUTOCAL)

Table 6-2. AutoCal Modes
MODE
DISABLED
ZERO
ZERO-SPAN
SPAN
The analyzer will ask to have the GAS TYPE specified at the beginning of the process as
follows:
SAMPLE H2S STB =XXX.X PPB
< TST TST > CAL
SAMPLE
SO2 H2S
SAMPLE
LOW HIGH
ZERO CAL M H2S STB =XXX.X PPB
< TST TST > ZERO
Continue Calibration as per
Standard Procedure
Once this selection is made, the calibration procedure continues as previously described.
The other gas may be calibrated by starting over from the main SAMPLE display.
The AutoCal system allows unattended, periodic operation of the zero/span valve options
by using the analyzer's internal time of day clock. AutoCal operates by executing user-
defined sequences to initiate the various calibration modes of the analyzer and to open
and close valves appropriately. It is possible to program and run up to three separate
sequences (SEQ1, SEQ2 and SEQ3). Each sequence can operate in one of three modes
or be disabled.
Disables the sequence
Causes the sequence to perform a zero calibration or check
Causes the sequence to perform a zero and span concentration calibration or
check
Causes the sequence to perform a span concentration calibration or check
Each mode has seven parameters that control operational details of the sequence
(Table 6-3).
H2S =XXX.X
CALZ CALS SETUP
GAS TO CAL: H2S
ENTR SETUP
GAS TO CAL: SO2
ENTR SETUP
H2S =XXX.X
SPAN CONC EXIT
ACTION
Calibration Procedures
Wait until H2S
STB falls below
0.5 ppb. This may
take several
minutes.
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