Application

• Concrete pipe DN 250
• Partially filled, low level
• Very low flow rates
• Ex Zone 1
• No mains power supply available

Definition of tasks

• Continuous flow rate measurement to determine the extraneous water volumes
• Reliable detection of lowest flow rates during night hours
• Quick and easy installation
• Long system battery life

Solution

• The portable, Ex-protected flow meter Type NivuFlow Mobile 750 was used.
• To detect even lowest flow rates, the mini sensor Type CSM with a height of merely 21 mm was used.
• The low flow levels within the small pipe diameter are detcted by using a small Type DSM special air-ultrasonic sensor.