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C.3 Viewing Velocity Error
Codes in Flowlink
Figure C-3 Identifying error codes in the 360 Velocity data set
Error Code
1: Low Signal Power Error No laser Doppler signal peak or
2: Flow Direction Error
In order to view error codes for velocity readings:
1. In the Flowlink workspace, double-click the
360 Velocity data set. When the graph
appears, click the Table View button.
2. When the table appears, click the Edit/View
button.
Any error codes will appear in the 360 Velocity
column following the words "No Data." Definitions of the error
codes are provided in Table C-1.
Table C-1 Definitions of 360 Error Codes
Meaning
sufficient strength is found. Mini-
mum is 1000.
An error occurred while determin-
ing flow direction. This error dis-
plays only if the "Positive Velocity"
option is set to "true" in the Flow-
link application.
TIENet™ 360 LaserFlow Ex™ Velocity Sensor
Appendix C Velocity Error Codes
Error codes
Possible Solutions
Ensure the protective window cap is removed. Refer to
Section 1.6.1 Protective Window Cap.
Ensure the location of the laser is correct.
Verify the distance is 0 to 10 ft from the bottom of the
sensor to the flow stream.
Ensure the Y-axis (pitch) is accurate (greater or equal
to 45º).
If velocity is frequently below 0.1 m/s (0.3 ft/s), the
LaserFlow Ex will not be able to determine the flow
direction.
C-3
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