Wireless Well Monitoring System
Industry: Water/Wastewater Treatment
Product: Zlinx® Wireless Modbus I/O
A tank farm in Arizona provides water for rural homes in a remote neighborhood located
away from city limits. Increasing demand, aging components, and desert temperatures
exceeding 100+ degrees were putting a strain on motors, which caused fuses to blow or
breakers to open. The well site is located ¼ mile from the homes it serves and any failure
caused multiple visits to the tank farm by maintenance staff. This caused unnecessary delays
and frustration. The tank farm needed a reliable way to monitor all spects of the well system
to ensure water delivery.
The system includes a 15,000 gallon holding tank, a 1,000 gallon pressure tank, a well pump,
and a pressure pump. A control panel mounted on the holding tank distributes power to the
pumps, and the controls turn the pumps on and off as needed to fill the tank and pressurize the
pressure tank. The large holding tank provides reserve capacity, but this also masks problems.
It can take as long as two days for the tank to drain and the water to stop flowing.
Wireless monitoring was a natural and cost effective solution. Working with the well system
owner, B&B technicians and engineers developed a remote monitoring system using a Zlinx®
wireless I/O and a Radio Modem. The system monitors water inventory and level of the well
system; the pump status; and the water delivery pressure.
A level sensor was mounted on the holding tank, which also required running conduit to install
the wiring. A current sensor measures current drawn from the well and pressure pumps to
monitor pump status. A pressure sensor took the place of the old pressure gauge. A modbus
ready HMI was used to display the data, giving a user the ability to glance at a monitoring
panel in the comfort of a home or office to view the holding tank level, see if the pumps are on
or off, how much current was being drawn, and look at how much pressure was in the pressure
tank. They now have a reliable way to monitor all aspects of the well system and be warned of
any trouble before it becomes catastrophic.
Why B&B Electronics?
- Zlinx® wireless monitoring eliminates the cost of running wires and is much easier to install.
- The radios are license-free and there are no maintenance charges.
- The Zlinx® wireless network has advanced AES 128 or 256 bit secure encryption.
- Modbus connectivity offers easy monitoring and reset faults without visiting the tank farm,
saving trips and delays.
- B&B Electronic’s technical support and solution assistance is always free.
Zlinx® Model ZZ9D-NA-LR - Wireless Modbus I/O
Zlinx® Model ZP9D-115RM-LR - Modbus Radio Modem
- Wide temperature range: -40 to 85°C
- AES advanced encryption
- Modbus connectivity
- Easy plug-and-play installation
- Versatile power 10 to 40 VDC or 24 VAC