Setup - Internal Variables (Vars); Table 6-5: Variable Names (Vars) Revision C.4 - Teledyne 200E Instruction Manual

Model 200E Instruction Manual

6.6. Setup - Internal Variables (VARS)

The M200E 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 6-5 lists all variables that are
available within the 818 password protected level. See Appendix A2 for a detailed listing of
all of the M200E variables that are accessible through the remote interface.
Table 6-5:
Variable
DAS_HOLD_OFF
TPC_ENABLE
DYN_ZERO
DYN_SPAN
SFLOW_SET
OFLOW_SET
IZS_SET
CONC_PRECISION
CLOCK_ADJ
CAL_ON_NO
2
044100102 Rev A
Variable Names (VARS) Revision C.4
Description
Duration of no data storage in the iDAS. This is the time
when the analyzer returns from one of its calibration
modes to the SAMPLE mode. The DAS_HOLD_OFF can be
disabled in each iDAS channel.
Enables or disables the temperature and pressure
compensation (TPC) feature (Section 10.4.3).
Dynamic zero automatically adjusts offset and slope of
the NO and NO response when performing a zero point
X
calibration during an AutoCal (Chapter 7).
Dynamic span automatically adjusts the offsets and
slopes of the NO and NOx response when performing a
zero point calibration during an AutoCal (Chapter 7).
Note that the DYN_ZERO and DYN_SPAN features are not
allowed for applications requiring EPA equivalency.
Adjusts the displayed value of the sample flow rate to the
actual flow rate, which was measured by the user.
Changing this value does not alter the actual sample gas
flow rate!
Adjusts the displayed value of the ozone flow rate to its
actual flow rate, which was measured by the user.
Changing this value does not alter the actual ozone gas
flow rate!
Sets the IZS oven temperature. Increasing or decreasing
this temperature will increase or decrease the NO
permeation rate of the IZS source (Section 5.5.3).
Allows to set the number of decimal points of the
concentration and stability parameters displayed on the
front panel.
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.
Allows to turn ON and OFF the ability to span the
analyzer with NO , in which case the instrument acts as if
2
NO and NO are spanned, even though it is supplied with
X
NO . The NO concentration is then zero by default.
2 2
This feature is not permitted for EPA protocol
applications.
Operating Instructions
Allowed Values
Can be between 0.5
and 20 minutes
Default=15 min.
ON/OFF
Default=ON
ON/OFF
Default=OFF
ON/OFF
Default=OFF
0-1000 cm³/min
Default=
500 cm³/min
10-1000 cm³/min
Default=
80 cm³/min
30°C - 70°C
Default= 50°C
2
AUTO, 1, 2, 3, 4
Default=AUTO
-60 to +60 s/day
Default=0
ON or OFF
Default=OFF
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