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Teledyne API Model 465L O
3
Monitor Operation Manual
52 05509F DCN6409
7.2.6. SETUP-VARS Menu
The VARS menu allows viewing and editing of various global setup variables that effect how the
M465L operates. These variables are stored in the instrument’s non-volatile memory. Table 7-7
lists these variables and their function.
Table 7-7: VARS List
VAR Meaning Default
Value
Range
S/N
Serial number of M465L. This number should match
the serial number tag on the rear of the instrument.
N/A 1 – 9999
ALARM
MODE
Controls the latching behavior of the concentration alarms.
See Section 7.1.4 for additional details.
L
ATCHING,
N
ON-LATCHING
STREAM
COUNT*
Specifies the number of streams available in the instrument. Note that the
hardware in the instrument must be also configured to support the number
of streams specified.
1 1,3,6
DWEL Dwell value for stream selector operation. See Section 7.3
for additional details.
Multi-stream units with the Sample Conditioner option
(Section 4.1.1.2), require additional dwell time to purge the
filter between stream measurements.
30.0
Seconds
45.0
Seconds
0.0 – 30.0
Seconds
0.0 – 45.0
Seconds
ALARM
DELAY
Number of readings above alarm limit required to trigger
alarms
5 1 - 10
MAN MODE
TIMEOUT
Enables/disables the Manual mode timeout feature. See
Section 7.1.3 for more detail.
ON ON, OFF
BC FILT
SIZE*
Boxcar filter length for concentration filter. Increasing the
size of the filter will smooth out the concentration readings
but will also increase the response time.
10 1-30
FLOW
ENABLE
Enables/disables operation of optional electronic flowmeter
OFF ON, OFF
COMM
ADDRESS
MODBUS address for serial communications
1 1 - 20
UNIT Concentration unit-of-measure setting. PPM PPM, PPB, UGM
SCROLL
DELAY
Inter-character delay for the front panel display, to increase
speed (lower value) or decrease speed (higher value) the
display scroll.
20 6-100
USER SLOPE User-editable calibration slope value 1.000 0.8 – 1.0
UNITS
TEMP
Standard (20ºC) or Normal (0ºC) temperature selection for
g/Nm3 units of measure.
NORMAL NORMAL
STANDARD
* Changing the value of these VARS forces the instrument to automatically reboot for the changes to take effect.