Gladiator conductivity switches available from Hawk Measurement Systems work by means of a low voltage AC signal which is applied between the probe electrode and the tank wall. In the case of non-metallic tanks the signal is applied between the probe electrode and a reference electrode.
When conductive liquid comes into contact with the tip of the electrode a conductive path is established. This path is between the sensory electrode and the metallic tank wall or reference electrode. Current path is sensed, amplified and used to switch a relay for indication or control purposes.
These smart switches have no moving parts, a simple one minute set-up, a remote test function and adjustable on and off delays. The probe has been designed with a bright visual status indicator and a remote amplifier to probe separation up to 500 metres.
Gladiator switches are commonly used for fail-safe high-level or low-level alarms, high and low-level interface detection and pump control. They can be found in a wide variety of industries. These include:
- Food and beverage
- Mining and metals
- Power generation
- Water and wastewater