Instrumentation North West is a long-standing supplier of water monitoring equipment. Their AquiStar PT2X is a submersible pressure sensor with on-board logger. Different models measure water heads from 1m full scale with a typical accuracy of ±0.06% of full scale. This excellent accuracy makes the logger suitable for monitoring groundwater, wells, tidal levels, pump testing and flow.
The AquiStar is internally powered with two AA batteries. These field changeable batteries will power the logger for at least a year at a 15-minute sample interval.
The easy-to-use Aqua4Plus software sets the logger up and monitors readings in real time. Other functions include data downloading and display, field calibration of sensors, delayed start, etc. The Aqua4Plus software can communicate remotely with the AquiStar over the cellphone network, radio or landline. And the Aqua4Push gives unattended data reception from multiple sensors directly into your PC.
The AquiStar is available in gauge and absolute versions, and can operate with real-time comms, or without a cable where the stored data is downloaded later. INW also supplies loggers for temperature, conductivity, bromide, chloride, pH and ORP. N&Z Automation & Control is now authorised to supply and fit cables locally and to carry our repairs and reconfigurations. This has major advantages in terms of cost and turn-around time.