Setup - Vars: Using The Internal Variables; Table 4-7. Variable Names (Vars) - Teledyne T101 Operation Manual

Teledyne ML – T101 Operation Manual
4.5. SETUP – VARS: USING THE INTERNAL VARIABLES

Table 4-7. Variable Names (VARS)

NO. VARIABLE
0 MEASURE_MODE
1 CAL_GAS
2 DAS_HOLD_OFF
3 TPC_ENABLE
4 RCELL_SET
5 IZS_SET
6 DYN_ZERO
7 DYN_SPAN
8 CONC_PRECISION
9 CLOCK_ADJ
10 SERVICE_CLEAR
The T101 has several-user adjustable software variables, which define certain operational
parameters. Usually, these variables are automatically set by the instrument's firmware,
but can be manually re-defined using the VARS menu. Table Table 4-7 lists variables that
are available within the 818 password protected level.
Selects the gas measurement mode in which the instrument
is to operate. SO
of SO and H S simultaneously. Dual gas mode requires
2 2
that a special switching option be installed (see Sections
4.5.1 and 10.3.2).
Used to select the calibration gas (SO
default behavior (DEF) where valve position and slope-
offset are same.
Changes the internal data acquisition system (DAS) hold-off
time, which is the duration when data are not stored in the
DAS because the software considers the data to be
questionable. That is the case during warm-up or just after
the instrument returns from one of its calibration modes to
SAMPLE mode. DAS_HOLD_OFF can be disabled entirely in
each DAS channel.
Enables or disables the temperature and pressure
compensation (TPC) feature.
Sets the sample chamber temperature. Increasing or
decreasing this temperature will increase or decrease the
rate at which SO
Do not adjust this setting unless under the direction of
Teledyne ML's Technical Support personnel.
Sets the IZS option temperature. Increasing or decreasing
this temperature will increase or decrease the permeation
rate of the IZS source.
Dynamic zero automatically adjusts offset and slope of the
H S response when performing a zero point calibration
2
during an AutoCal (Section 6).
Dynamic span automatically adjusts slope and slope of the
H S response when performing a zero point calibration
2
during an AutoCal (Section 6).
Note that the DYN_ZERO and DYN_SPAN features are not
allowed for applications requiring EPA equivalency.
Allows the user to set the number of significant digits to the
right of the decimal point display of concentration and
stability values.
Adjusts the speed of the analyzer's clock. Choose the +
sign if the clock is too slow, choose the - sign if the clock is
too fast.
Resets the service interval timer.
DESCRIPTION
only, H S only or dual gas measurement
2 2
or H
2
* decays into SO . (Section 10.1.2).
2 2
Operating Instructions
ALLOWED
VALUES
SO
S) or to select
2
DEF, SO2 , H2S
Can be between 0.5
and 20 minutes
Default=15 min.
ON/OFF
30º C - 70º C
Default= 50º C
30º C - 70º C
Default= 50º C
ON/OFF
ON/OFF
AUTO, 1, 2, 3, 4
Default=AUTO
-60 to +60 s/day
OFF/ON
SO ;
2
– H S;
2 2
H S
2
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