SM4407 fiber optical submersible measuring buoy

Fiber optic measurement method for measuring water levels in ponds. The solution is based on pressure sensor, long-life battery and an RS232 / fiber conversion mounted in a buoy. The buoy communicates via fiber cable to land.

The measurement method is used to measure water levels that are not affected by fall losses when running power plants.

Some key parameters:

  • Fiber optic communication
    • Cable length 20 – 2000 m
    • Multimode fiber cable with a fiber pair
    • Not metallic reinforcement
    • No surges in thunderstorms
  • Battery operated with 10 to 20 years of life
    • Low power consumption
    • Lithium battery +10.8 V
    • Battery can be replaced in the field
  • Submersible pressure cell
    • Digiquartz 6000 or GE DPS 8000
    • 0-100m water height
    • Target accuracy: 0.01% or 0.02%
    • Barometer on land is used to compensate for atmospheric pressure
  • Mounted in Tripod solution or mounted on the bottom
    • Stainless steel
    • Pressure tested to 10 bar
  • Serial RS-232 interface for data loggers
    • SM246 fiber modem with two optical ST connectors
  • Available measurements
    • Water pressure
    • Water temperature