Maintenance
Routine Maintenance
The very low level of UV in solar radiation, and its susceptibility to
absorption by dirt and grease, requires that the UV sensor diffuser be
cleaned regularly. In most cases, weekly cleaning with a soft toothbrush,
clean freshwater and liquid detergent will be sufficient.
Do not remove the base plate screws. There are no user accessible
controls inside.
Recalibration
The calibration certificate validity period is 12 months. Annual
recalibration is essential.
Return the sensor to Delta-T. Contact your agent (or Delta-T direct) in
advance for prices and despatch instructions before returning the unit.
Storage
Observe the storage temperature limitations (see Specifications).
18
z
Maintenance
UV3 User Manual 1.1
