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7.2.5.
SETUP-VARS Menu
The VARS menu allows viewing and editing of various global setup variables that effect
how the 465M operates. These variables are stored in the instrument's non-volatile
memory. Table 7-6 lists these variables and their function.
VAR
ALARM MODE
ALARM DELAY
BC FILT SIZE
FLOW SWITCH
ENABLE
COMM ADDRESS
UNIT
SCROLL DELAY
AZERO ENABLE
AZERO INTERVAL
GAS CARRIER
WEIGHT
ANALOG RANGE
40
Teledyne API Model 465M O
Table 7-6: VARS List
Meaning
Controls the latching behavior of
the concentration alarms. See
Section 7.1.3 for additional
details.
Number of readings above alarm
limit required to trigger alarms
Boxcar filter length for
concentration filter. Higher
values will smooth out the
concentration readings but will
also increase the response time.
Enables/disables operation of
optional flow switch
MODBUS address for COM
ports.
Concentration unit-of-measure
setting.
Adjustment for display scroll
delay. Higher values result in
slower scrolling speed.
Enables/Disables auto-zero
calibration
Time interval for performing the
auto-zero calibration (minutes)
Molecular weight of carrier gas
(ie. feed gas for ozone generator.)
This value is only used for the
calculation of wt% concentration
units. It is not used for PPM or
g/Nm3 calculations.
Full-scale concentration range.
Used to scale the analog output.
Monitor User Manual
3
Default
Range
Value
LATCHING,
LATCHING
NON-
LATCHING
5
1 - 20
30
1 - 30
OFF
ON, OFF
1
1 - 247
PPM, WT%,
PPM
g/Nm
20
6 - 100
ON
ON/OFF
6
3 - 1440
32
20.0 – 40.0
5 – 50 g/Nm3
5000
1000 – 9999 PPM
0.5 – 5.0 wt%
06160J DCN7969
3
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