Technical Blog Archive

Variohm Group expands with acquisition of magnetic encoder specialist Phoenix America.

The Variohm Holdings Group of Companies has recently added Phoenix America., to it’s Group of companies. Phoenix America are a leading magnetic encoder and magnetic sensor solutions specialist. Based in Fort Wayne, Indiana, Phoenix America is a pioneer designer, developer and manufacturer of...

What is a Pneumatic Switch?

A pneumatic switch is a type of switching device which uses air to function. When compressed, the pneumatic switch will send a sip or puff of air along a length of PVC tubing to an air switch. The movement of air will activate the airswitch which will make the electric circuit and activate a...

Wireless Footswitches

What is a Wireless Footswitch? A wireless footswitch operates a device without the use of a wired connection, this enables the user to operate a machine or device without being close by. A wireless footswitch is useful in medical applications as well as some OEM and industrial...

What is a Normally Open Switch?

In a normally open switch, when the switch is off the contacts are open. This means the electrical connection is broken so the switch is “off”. In Normally Closed switches, the contacts are closed which connects the switch meaning that when they are not compressed they are switched...

What is a Pressure Switch?

A pressure switch has a set activation limit; this will depend on the application and will be set by the user. Once the activation limit is reached, the pressure switch will change state, causing a reaction within the circuit. This is different from a pressure transducer which gives an accurate...

Buttons and Switches

Our buttons and switches are used throughout many industries worldwide. We have a range of electric and pneumatic buttons and switches making them suitable for different environments. Types of Buttons and Switches The different types of buttons and switches we have at Herga...