Posted to News on 1st Sep 2020, 11:00
Contactless water and liquid dispenser ideas from Herga
The outbreak of COVID-19 has seen workplace hygiene and cleanliness headlined, with hand sanitising stations becoming commonplace on shop floors worldwide. Many of the dispensers are new-generation contactless devices and Herga Technology is highlighting that fact that it produces a wide range of non-contacting and safe switching products that are used in some of these contactless dispensing stations.
The company produces infrared switching devices that automatically detect motion and will either close a relay or alternatively activate an electrical circuit with NPN configuration. The IR sensor is simply mounted on a panel using a 33mm diameter hole, and with 12V to 30V DC power connected, components such as pumps, solenoids, motors or lighting can be operated with no other components required, as is the case for most IR switches available on the market.
A time-delayed IR sensor solution is available to avoid successive and multiple dispensing situations, providing maximum economic long-term gains for operators. These buttons are available in chrome-plated ABS or stainless steel, and anti-vandalism switches are said to be suitable for installations with high and frequent use. Herga cites adaptations for electrically triggered water fountains that already include a solenoid valve or a relay that may also include the addition of a standard electric foot pedal or a dual foot pedal assembly. The foot pedal would simply interact with the existing electrical system with the water pumped when the foot pedal is pressed and stopped when it is released. A dual pedal arrangement will take care of refrigerated/normal temperature water delivery and the manual (hand operated) push buttons could still be used if two systems are preferred. The manual pushbuttons can be disabled if required. This system would not modify carbon or UV filtering.
The same equipment could also be adapted with an air-operated "bellows' footswitch and a Herga air-switch or pressure switch interacting with the existing water dispenser's electrical system. These solutions would be unsuitable for cylinder-type gravity fed water dispensers, although it is possible they could be modified with the addition of suitable solenoid actuated taps and the same foot-operated components covered. The Herga range offers a choice of electrical footswitches in terms of aesthetics covering the shape of the pedal, colours, and logos, with the most common voltage for water fountains of 0.1A and 24V DC available in many models. Higher current and alternative voltages are of available and custom designs too, for volume quantities.
For more information about Herga's range of non-contacting and safe switching products please visit www.herga.com.
