Non-Invasive Point Level Detector for Tanks & Pipes (Hi-Lo Alarm)

Product code: SpotCheck 1000
Non-invasive liquid level switch for use in applications where avoiding contact is vital. Sensor is clamped externally to the wall of the pipe or vessel and enables tank high / low level alarm with a response time of 1 second. The method of measurement is suitable for steel, plastic or glass up to 50mm thick.

Working Principle

SpotCheck uses an ultrasonic ''footprint'' to determine the presence of absence of liquid inside a tank or pipe. It provides two wire, 24Vdc operation with an appropriate current sensor but also incorporates a relay switch output.

The piezo-electronic transducer emits ultrasonic energy into the wall of the tanks or pipe, which acts as a wave-guide. The electronics detect the difference between ''wet'', ''dry'' and ''fault'' conditions.

In order to ensure that SpotCheck will operate satisfactorily, the surface of the tank or pipe must be prepared properly.

Main Applications

- Tank high / low level alarm
- Non contact level switch
- Overfill procedure
- Pump run dry protection
- Pig Detection
- Tanker off-load pump control
- Liquids with suspended solids and free gas
- Detect liquid / foam interface
- Aggressive or toxic liquids, effluent, sewage etc.
- Hygienic level switch for hygienic liquids, foodstuffs, pharmaceuticals, chemicals
- Flowing and static liquids
- High or low pressure pipes or vessels
- Detect presence of spray e.g. Tank washing

  • Non-invasive liquid level switch for use inapplications where avoiding contact is vital
  • Uses ultrasonic
  • Sensor is clamped externally to the wall of thepipe or vessel
  • Enables tank high / low level alarm
  • Response time of 1 second