Setup Menu Teledyne API – Model T300/T300M CO Analyzer
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5.8. SETUP VARS: VARIABLES SETUP AND DEFINITION

The T300/T300M 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 redefined using the VARS menu.

The following table lists all variables that are available within the 818 password

protected level. See Appendix A-2 for a detailed listing of all of the T300/T300M

variables that are accessible through the remote interface.

Table 5-3: Variable Names (VARS)
NO. VARIABLE DESCRIPTION ALLOWED
VALUES
VARS
DEFAULT
VALUES
0 DAS_HOLD_OFF
Changes the Internal Data Acquisition System (DAS)
HOLDOFF timer (Section 7.1.11).
No data is stored in the DAS channels during situations
when the software considers the data to be questionable
such as during warm up of just after the instrument returns
from one of its calibration mode to SAMPLE Mode.
May be set for
intervals
between
0.5 – 20 min
15 min.
1 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 AUTO
2 DYN_ZERO 1 Dynamic zero automatically adjusts offset and slope of the
CO response when performing a zero point calibration during
an AutoCal (see Section 9.4).
ON/OFF OFF
3 DYN_SPAN 1 Dynamic span automatically adjusts the offsets and slopes of
the CO response when performing a slope calibration during
an AutoCal (see Section 9.4).
ON/OFF OFF
4 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 0 sec
5 STABI L_GAS2 Selects which gas measurement is displayed when the STABI
L
test function is selected. CO; CO2 & O2 CO
1 Use of the DYN_ZERO and DYN_SPAN features are not allowed for applications requiring EPA equivalency.
2 This VARS only appears if either the optional O2 or CO2 sensors are installed.
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.

06864B DCN6314