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For investigative work and regular monitoring. Robertson Technology and their representatives offer test and analysis services, employing this equipment.


An immersion temperature probe and a pressure probe are connected to the suction side of a pump, via a T-piece and a valve in a tapping point. Similar probes are connected to the discharge side. The probes can be operated from a battery or a mains supply. The sensor signals are digitised in the probe handles, and data is returned to a notebook computer via a half duplex RS485 interface with MODBUS protocol, either by cable or wirelessly. A power meter provides the additional information for calculation of flow rate.

Typical configuration with wireless modems and battery operation

Power meter with wireless modem


Notebook computer with wireless modem

Speed transducer with RS485 interface, for variable speed pumps

Power & Distribution module(mains power or battery)

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