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SETUP Menu Teledyne API - T100 UV Fluorescence SO2 Analyzer
106
5.8. SETUP – VARS: VARIABLES SETUP AND DEFINITION
Through the SETUP>MORE>VARS menu there are several-user adjustable software
variables that 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 5-2 lists all variables that are available within the 818 password
protected level.
Table 5-2: Variable Names (VARS) Revision 1.0.3
NO.
VARIABLE
DESCRIPTION ALLOWED VALUES
0
DAS_HOLD_OFF
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.
Can be between 0.5
and 20 minutes
Default=15 min.
1
TPC_ENABLE
Enables or disables the temperature and pressure compensation
(TPC) feature (refer to Section 13.7.3).
ON/OFF
2
RCELL_SET
Sets the sample chamber temperature. Increasing or decreasing
this temperature will increase or decrease the rate at which SO
2
*
decays into SO
2
(refer to Section 13.1.1).
Do not adjust this setting unless under the direction of Teledyne
API Technical Support personnel.
30º C - 70º C
Default= 50º C
3
IZS_SET
Sets the IZS option temperature. Increasing or decreasing this
temperature will increase or decrease the permeation rate of the
IZS source (refer to Sections 3.3.2.4, 9.5, 9.6).
30º C - 70º C
Default= 50º C
4
DYN_ZERO
Dynamic zero automatically adjusts offset and slope of the SO
2
response when performing a zero point calibration during an
AutoCal (refer to Section 9).
ON/OFF
5
DYN_SPAN
Dynamic span automatically adjusts slope and slope of the SO
2
response when performing a zero point calibration during an
AutoCal (refer to Section 9).
Note that the DYN_ZERO and DYN_SPAN features are not
allowed for applications requiring EPA equivalency.
ON/OFF
6
CONC_PRECISION
Allows the user to set the number of significant digits to the right of
the decimal point display of concentration and stability values.
AUTO, 1, 2, 3, 4
Default=AUTO
7
CLOCK_ADJ
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.
-60 to +60 s/day
8
SERVICE_CLEAR
ON resets the service interval timer. Returns to OFF upon reset.
ON/OFF
9
TIME_SINCE_SVC
Number of hours since last service.
0-500000
10
SVC_INTERVAL
Sets the intval between service reminders.
0-100000
IMPORTANT
IMPACT ON READINGS OR DATA
There are more VARS available when using the password, 929, for
configuration. Use caution when pressing any buttons while in this setup.
Any changes made may alter the performance of the instrument or cause
the instrument to not function properly. Note that if there is an accidental
change to a setup parameter, press EXIT to discard the changes.
06807C DCN6650