Rain Bird WS-PRO2, Installation, Operation, Maintenance, And Troubleshooting Manual, Page: 71 / 113

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If necessary, clean the white filter element on the end of the temp/RH sensor. To clean the
filter, unscrew it from the end of the sensor and put it in a cup of CLEAN DISTILLED WATER.
Use no soap. Agitate the filter in the cup of water. Remove the filter and allow to air dry
before putting it back on the end of the sensor.
6 months
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Replace the anemometer bearings and reed switch on the 034B-ET if operating under
harsh conditions, such as constant high winds, blowing dust, and/or salt spray
contamination. Return the sensor to Campbell Scientific for bearing and reed switch
replacement (see
Assistance page).
1 year
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Replace the wind speed (anemometer) bearings on the 034B-ET. Return the sensor to
Campbell Scientific for bearing replacement (see
Assistance page).
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Replace reed switch the 034B-ET if needed. Return the sensor to Campbell Scientific for
bearing replacement (see
Assistance page).
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Check calibration of the HMP60-ETS Temp/RH sensor, which tends to drift up over time
giving readings higher than 100%. Replace RH chip if necessary (refer to
FIGURE 7-1 (p. 68)
and Procedure for removing RH chip (p. 69)).
NOTE:
WS-PRO2 stations began shipping January 2014 with an updated radiation shield with
knurled thumb screws, using the HMP60 ETS Temp/RH sensor. All information in this
document is also pertinent for the HMP50-ET, HMP60-ET, and HMP60 ETR sensors.
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Replace desiccant in enclosure housing as needed.
Section 7. Maintenance and troubleshooting 67