Application

• Trapezoid channel 1.5 x 0.5 m (w x h)
• Partially filled
• Concrete channel bottom, embankment reinforced with water engineered stones
• Remote measurement place

Definition of tasks

• Flow measurement in partially contaminated groundwater from former tar factory site for proof purposes
• No power supply available
• No solar power supply or open sensors possible due to the risk of vandalism
• Long readout cycles of saved measurement data

Solution

• The portable flow measurement system Type PCM 4 with rechargeable battery and memory card data storage has been used.
• Due to the slow fluctuation of readings, a measuring interval of 30 minutes has been selected.
• A combined flow velocity / level sensor has been mounted on the channel bottom.