34
Teledyne API Model 480L O
3
Monitor User Manual
09419A DCN8342
5.2.3.4
F
LOW
C
ALIBRATION
The flow calibration allows the instrument to calibrate its internal flowmeter
reading. This should be done with a calibrated flowmeter connected to the “Sample
In” port of the monitor.
In the Diag>Cal>Flow Cal menu, use the buttons under the Up/Down arrows to set
the Flow Cal target (the actual flow as measured at the sample inlet) and press the
Enter button; then press the button under the Execute Cal field to perform the flow
calibration or press the Back button to abort back to the start.
If the calibration is successful, the flow display on the Default Screen should match
the Flow Cal target. If the calibration cannot be performed, a Cal Status Failed
message will be displayed, and you will need to return to the start of the Flow Cal
menu.
If the Cal Status Failed message occurs, it means the Flow Cal cannot be performed
because it would result in an out of range flow slope value for the monitor. This
means that either the flow sensor in the monitor is malfunctioning, causing
improper readings, or the actual flow is different than the target value being entered.
5.2.4 SETUP MENU
The Setup menu displays specific information related to instrument configuration
and allows the user to set up stream details and to change variables (VARS).
5.2.4.1
SETUP-STREAMS
M
ENU
The Streams menu allows the operator to view and edit properties of each
measurement stream available. For each stream the following properties are
available:
Table 5-4. STREAM Properties
Property
Meaning
Default
Value
Range
DELAY
Set number of readings above
alarm limit required to trigger
alarms.
5
1-10
STREAM
Select configure the details for each stream.
HI ALARM
Enable/disable HI alarm operation
and set trigger value.
ON
ON/OFF
HI HI ALARM
Enable/disable HI-HI alarm
operation and set trigger value.
ON
ON/OFF
RANGE
Concentration range for specified
stream. Used to scale the analog
output.
1.0 PPM
1.0 – 500.0
PPM
