FIGURE 7-1. Exploded view of the temperature and RH sensor (adapter not shown)
2 years
l
Replace vane potentiometer of the 034B-ET if needed (refer to
www.campbellsci.com/order/034b-et
for part number and price). Contact your local Toro
distributor for service.
l
Replace enclosure gasket if necessary. Contact your local Toro distributor for service.
3 years
l
Send the solar radiation sensor (pyranometer) for calibration. Contact your local Toro
distributor for service. Sensor cannot be calibrated in the field. (Some users recommend
calibrating this sensor on a yearly basis.)
4 to 5 years
l
Check sensor cables (as well as all other cables) for cracking, deterioration, proper routing,
and strain relief. Replace as required.
l
Check enclosure relative humidity sensor. To check this sensor, take the lid off the
enclosure during routine desiccant replacement and leave it off for 5 to 10 minutes before
putting in new desiccant. While the lid is off the enclosure, compare the internal enclosure
humidity to the air humidity. Replace if > 10% off.
Section 7. Maintenance and troubleshooting
63
