Galltec-Mela logo Humidity measuring technology - high quality

Technical data

Measuring element
Control range
Lifetime
Polyga®-fiber
40...90 % RH
>6000 switching cycles
Accuracy at 23 °C
Influence of temp. at 23 °C
≤ ±3 % RH (at 48 % RH)
≤ ± 0.2 % RH / K
Changeover contact max. 5 A
Breaking capacity max. 250 V AC
Ohmic load, dehumidification 0.1...5A
Ohmic load, humidification 0.1...2A
Inductive load 0.1...1A (power factor >0.8)
Gold contact max. 100 mA
Breaking capacity max. 250 V AC and
1...100 mA

Indoor humidistat HG120

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

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.

Internal scale and adjusting knob
The HG120-i version was designed so that the control knob and scale are inside the housing. This makes unauthorized adjustments more difficult.

Often used in

  • Agriculture & food industry
  • 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
  • Museums & archives
  • Offices & public buildings
  • Paper & print
  • Private homes
  • Shipping containers (or refrigerated containers)
  • Storage
  • Storage & transport of fruits, vegetables, meat
  • Swimming pools & Spa
  • Warehousing
  • Warehousing and transport
  • Wind turbines
  • Wine cellar, cabinets and storage