Mechanical humidistat HG120

ambient

Selfpowered humidistats robust and reliable with On-off controller The humidistat type HG120 is used as an on-off controller to control the relative air humidity. It is used to control air humidifying and dehumidifying in offices and computer rooms. Other areas of use are storage of foodstuffs and luxury foods, cooling rooms for fruit and vegetables, greenhouses for gardening use, the textile industry, the paper and printing industry, the film industry and hospitals. Remarkably straightforward and durable design Our Humidistats feature a simple and robust design. The Polyga® measuring element is a unique hygroscopic fibre that changes its length depending on the humidity. The changes in length of the POLYGA® fibres are transferred via a lever system to a microswitch, resulting in an on/off controller that needs no auxiliary power supply. Waterresistent and maintenance-free It has unparalleled long-term stability and is 100 % waterproof, which makes it ideal for use in high humidity. In pure ambient air the measurement element is maintenance-free. Self-powered humidistats – very robust and reliable Features • Operating temp. up to 60 °C • Accuracy: ±3 % RH • High accuracy in the high humidity range • Robust • Long-term stability • Washable Polyga® measuring element • No external power supply required Often used in Bakery technology Building construction Cooling & air conditioning Cooling & air conditioning in trains Drying of tea, corn, meat Energy and environmental technologies Food technology Green house technology HVAC and building automation Livestock husbandry Maturing of food