Table of Contents
Advertisement
Operating Instructions
4.12. SETUP MORE VARS: INTERNAL VARIABLES (VARS)
NO.
VARIABLE
0
DAS_HOLD_OFF
1
MEASURE_MODE
2
STABIL_GAS
3
TPC_ENABLE
4
DYN_ZERO
5
DYN_SPAN
6
CONC_PRECISION
7
CLOCK_ADJ
8
SERVICE_CLEAR
9
TIME_SINCE_SVC
10
SVC_INTERVAL
1
Only available in analyzers with O
Note
122
The T200H/M has several-user adjustable software variables, which define certain
operational parameters.
instrument's firmware, but can be manually re-defined using the VARS menu. Table
4-15 lists all variables that are available within the 818 password protected level. See
Appendix A2 for a detailed listing of all of the T200H/M variables that are accessible
through the remote interface.
Table 4-15: Variable Names (VARS)
Duration of no data storage in the DAS. 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
DAS channel.
Selects the gas measurement mode in which the instrument is to
operate. NO
only, NO only or dual gas measurement of NO
x
and NO simultaneously. Dual gas mode requires that a special
switching optional be installed.
Selects which gas measurement is displayed when the STABIL
test function is selected.
Enables or disables the temperature and pressure
compensation (TPC) feature (Section 8.8.3).
Dynamic zero automatically adjusts offset and slope of the NO
and NO
response when performing a zero point calibration
X
during an AutoCal (Section 7.7).
Dynamic span automatically adjusts the offsets and slopes of
the NO and NOx response when performing a zero point
calibration during an AutoCal (Section 7.7).
Note that the DYN_ZERO and DYN_SPAN features are not
allowed for applications requiring EPA equivalency.
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.
Resets the service interval timer . (Changing the setting to ON
resets the timer and then returns the setting back to default
OFF).
Tracks the time since last service (restarts the time when the
service interval timer, SERVICE_CLEAR, is reset).
Sets the interval between service reminders.
sensor options installed.
2
There is a 2-second latency period between the time a VARS value is changed
and the time the new value is stored into the analyzer's memory.
DO NOT turn the analyzer off during this period or the new setting will be lost.
Teledyne API - Model T200H/T200M Operation Manual
Usually, these variables are automatically set by the
DESCRIPTION
ALLOWED VALUES
Can be between 0.5
and 20 minutes
Default=15 min.
NO; NO
;
x
x
NO
–NO
x
NO; NO
;
x
1
NO
; O
2
2
ON/OFF
Default=ON
ON/OFF
Default=OFF
ON/OFF
Default=OFF
AUTO, 1, 2, 3, 4
Default=AUTO
-60 to +60 s/day
Default=0
ON/OFF
Default=OFF
0-500000
Default=0
0-100000
Default=0
07270D DCN7141
Advertisement
Table of Contents
