Technical data
Control range
Lifetime
40...90 % RH
>6000 switching cycles
Influence of temp. at 23 °C
≤ ± 0.2 % RH / K
Ohmic load, dehumidification 0.1...5A
Ohmic load, humidification 0.1...2A
Inductive load 0.1...1A (power factor >0.8)
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
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.
