GENEQ > Meteorology > Evaporation

Automatic Evaporation Monitoring System
Model 6529

The Model 6529 Automatic Evaporation System operates an evaporation pan and records evapo-ration and rainfall data. The instrument is normally supplied as a complete package with a US Class A evaporation pan and all installation fittings. It can be connected to any other type of pan.

The 6529 system is designed to operate for long periods without maintenance. The water level transducer and data logger operate for one year from internal batteries.

The water level control system is solar powered. The water supply to refill the evaporation pan is provided by the user from a tank or a reticulated water supply pipe. Rainfall removed from the pan can be recycled if required. UNIDATA can supply a 1000 litre tank.

The datalogger included with the unit is fully programmable and has all the STARLOG features. These include event and time interval recording, programmable measurement and recording inter-vals, signal processing such as average, max, min and computations including flow conversions and rating tables.

A water temperature sensor and a range of weather sensors can be added to identify the rela-tionship between pan evaporation and site condi-tions. These are required for evaporation and evapo-transpiration studies and modelling. An optional telemetry system can be connected to the datalogger. Landline, cellular, satellite and radio communication links can be used to monitor data acquisition and operate the site.