Class-1 Division-2 Wireless Fuel Tank Gauging

Class-1 Division-2  Wireless Fuel Tank Gauging

Industry: Petroleum, Oil and Gas
Product: 900MHz Long Range Radio Modem

The Challenge
Manually gauging oil and gas tank inventory at fuel terminals is inefficient. But gauging is a necessary safety procedure. And any equipment installed at fuel tank sites needs to meet Class 1 Division 2 approvals.

The Solution
Our customers connected the level sensors on the tanks to B&B Electronics’ 900 MHz long range wireless radio modems. A master radio modem at the control/monitoring station gathers the tank level data from the remote radios and passes it along to the central SCADA or PLC. Our radio modems are Class 1, Div 2 certified and thus suitable for the tank farm environment.

It’s off-the-shelf technology, it works, and it’s easy to use. Fully programmed wireless solution kits, including HMI, are also available.

Why B&B Electronics?

  • Ability to tie multiple tank level sensors to a central SCADA/PLC through license free proprietary RF radio modems
  • Ability to survive harsh seasonal weather because of its -40 to 85°C wide temperature ratings
  • Class 1, Div 2 hazardous location certification is a must for this application
  • Data available in user friendly Modbus format
  • The 256-bit AES encryption ensures data integrity and network protection

The Product: Zlinx® Model ZP9D-115RM-LR – 900MHz, Long Range, Industrial Grade Radio Modem

  • 40 mile radio range
  • Frequency: ISM band, 902 to 928 MHz
  • 3dBi RPSMA male dipole, antenna included
  • -40 to 85°C wide temperature - for indoor and outdoor applications
  • Power supply redundancy and versatility: 10 to 48 VDC or 24 VAC
  • Rugged circuitry & heavy-duty DIN mount case saves panel/cabinet space
  • Class 1 Div 2, 256-bit encryption



Easy wire replacement, point to point or multi-point