beautypg.com

Troubleshooting, Maintenance – Campbell Scientific P2546A-L Anemometer User Manual

Page 16

background image

P2546A-L Anemometer

'Call data tables
CallTable Test


NextScan
EndProg

8. Troubleshooting

Symptom: No wind speed

1. Check that the sensor is wired to the pulse channel specified by the pulse

count instruction.

2. Verify that the Configuration Code, and Multiplier and Offset parameters

for the Pulse Count instruction are correct for the datalogger type.

Symptom: Wind speed does not change

1. For the dataloggers that are programmed with Edlog, the input location for

wind speed is not updated if the datalogger is getting “Program Table
Overruns”. Increase the execution interval (scan rate) to prevent overruns.

9. Maintenance

Every month do a visual/audio inspection of the anemometer at low wind
speeds. Verify that the anemometer bearing rotate freely. Inspect the sensor
for physical damage. Replace the anemometer bearings when they become
noisy, or the wind speed threshold increases above an acceptable level.

Disassembling an anemometer to change the bearings will
invalidate the MEASNET calibration.

CAUTION

MEASNET calibrations are normally valid for 12 months in the field
(assuming the anemometer is installed within 6 months of the calibration test).
In high-accuracy applications, Campbell Scientific recommends that the
anemometer be returned to us for maintenance/overhaul between deployments;
we can arrange for a new MEASNET calibration after maintenance/overhaul
where required.

Before the anemometer is sent to Campbell Scientific, the customer must get
an RMA (returned material authorization) and fill out the Declaration of
Hazardous Material and Decontamination form.

10