General Description

SpotCheck is a liquid level switch for use in applications where avoiding contact is vital. The sensor is clamped externally to the wall of the pipe or vessel. The method of measurement is suitable for steel, plastic or glass up to 50mm thick. SpotCheck is easy to install and set-up. Simply push the calibrate button when the sensor is uncovered. A red / green / amber LED gives an indication of status. The Series 1000 SpotCheck is powered by 24Vdc and includes a single relay output for wet or dry indication. 

Principle of Operation

SpotCheck uses an ultrasonic “footprint” to determine the presence or absence of liquid inside a tank or pipe.  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. 

Typical Applications

{  Pump run dry protection

{ Tank high / low level alar 

{ Overfill procedure 

{  Non-contact level switch

{  Pig Detection

{ Overfill procedure 

{  Tanker off-load pump control

{  Liquids with suspended solid and free gas

{  Detect liquid / foam interface

{  Aggressive or toxic liquids, effluent, sewage etc.

{  Hygienic level switch for hygienic liquids, foodstuffs,  pharmaceuticals and chemicals

{  Flowing and static liquids

{  High or low pressure pipes or vessels

{Detect presence of spray e.g. Tank washing