06161H DCN7969
Teledyne API Model 465H O
3
Monitor User Manual
33
7.2.4.
SETUP-VARS Menu
The VARS menu allows viewing and editing of various global setup variables that effect
how the 465H operates. These variables are stored in the instrument’s non-volatile
memory. Table 7-4 lists these variables and their function.
Table 7-4: VARS List
VAR
Meaning
Default
Value
Range
ALARM MODE
Controls the latching behavior of
the concentration alarms. See
Section 7.1.3 for additional details.
LATCHING
LATCHING,
NON-
LATCHING
ALARM DELAY
Number of readings above alarm
limit required to trigger alarms
5
1 - 20
BC FILT SIZE
Boxcar filter’s length for
concentration filter. Higher values
will smooth out the concentration
readings but will also increase the
response time.
30
1-30
FLOW SWITCH
ENABLE
Enables/disables operation of
optional flow switch
OFF
ON, OFF
COMM ADDRESS
MODBUS
®
address for COM
ports.
1
1 - 247
UNIT
Concentration unit-of-measure
setting.
g/Nm
3
WT%, g/Nm
3
SCROLL DELAY
Character delay for the front panel
display.
20
6-100
AZERO ENABLE
Enables/Disengages zero
calibration
ON
ON/OFF
AZERO
INTERVAL
Interval at which zero calibration is
performed. (minutes)
720
3-1440
GAS CARRIER
WEIGHT
Weight of gas without ozone, used
in %Weight measurement
32.00
20.0-40.0
ANALOG RANGE
Voltage range corresponding to
ozone concentration.
20
5 – 50 g/Nm3
0.5 – 25.0 wt%
Summary of Contents for 465H
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