Regeneration and process air heating
The heating of the air will be done by an electric heater. The heater consists of PTC thermistor heating
elements that will type of construction adapted their power consumption automatically according to the
air flow and inlet temperature. This enables the PTC thermistor, a temperature-dependent
semiconductor resistor. Its resistance value rises above a defined temperature (Curie point) with
increasing temperature very strongly.
In practice this resistance characteristic provides, that the Thermistor-Temperature (tmax about.
240°C) remains practically stable on a wide range. Fluctuations of the sucked up air temperature,
which influence the tension or the air current affect the Thermistor-Temperature only slightly. Thus
there is hardly any danger of a failure of overheating. PTC-Thermistor-Heating elements are,however,
receptive to tension peaks of >800V and filth.
Filter check with differential pressure indication(Special design)
The differential pressure indication serves the optical check of the present differential pressure on the
filter. It is fitted as a mechanical manometer and does not need an extra energy.
Logic module
The apparatus has been provided with a free- programmable logic module, which has been installed in
the U-7100. This will take over the steering, the adjustment of the regeneration air-temperature and
the function guarding of the apparatus.
It has been provided with an external display, on which diverse reports, such as failures, warnings,
real values respectively. pre choice values are indicated. The relative information can be shown by
using the keys on the control panel with which reports of failures have the highest priority.
4. Technical Dates
Technical Dates apply for a sucking up of air with 20°Cand 60% rH
- Dehumidifying performance: 1,6 kg/h
- minimal humidity 2%rH
- Process air mixture continuously adjustable to max.: 300 m³/h
- external compression: 150Pa
- Fitting supports for process air 2x 160 mm
- Regeneration air mixture adjustable to max.: 65 m³/h
- external compression: 70 Pa
- Electric supply: 230V, 50/60 Hz, 2,1 kW
- Dimensions (LxBxH): 524x 450x 480 mm
- Fitting supports for Regeneration air: 2x 120 mm
- Weight: 38 kg
