Stofmeting / stofdetectie
De ProSens is speciaal ontwikkeld om een betrouwbare wijze de stofuitstoot achter industriële filters te meten.
- Stofmeting ook in grote kanaaldiameters
- Betrouwbare stofemissiemeting
- Meting van de stofconcentratie bij hoge temperaturen
- Trendsignaal of absolute waarde
- Meting van de stofconcentratie als absolute waarde in mg/m3
ProSens was specially developed to carry out reliable dust measurement on clean sides after filters.
The measuring device provides measurement values for dust concentration, either as a trend signal or as absolute values for emission measurement.
ProSens is used:
- if the dust concentration is to be output as an absolute value in mg/m3.
- for exact measurements even with large channel diameters.
- for applications in explosion hazard zones
(GasEx-Zone 1, DustEx-Zone 20)
- for the measurement of dust concentration even at high temperatures.
Basic principle of the ProSens is the electrodynamic effect.
If the dust to be measured is constant, then the generated measuring signal is proportional to the dust concentration, even if there are dust deposits on the measuring probe. Experience shows that the measuring method provides very exact results with little required maintenance.
A complete measuring system consists of these components:
- Welded casing to serve as a sensor receptacle
- PMS sensor
- Transmitter PME 100
This unit can be supplied in a field housing with touch panel display or as a DIN rail version.
In case of a DIN rail version also a software for parameter setting will be supplied.
The ProSens can be installed in metal channels and pipelines.
The installation should take place away from any curves and other inserts such as flaps and valves.
The distance between the sensor rod and inserts in the channel should be at least 3 times the channel diameter in every flow direction.
Non-metallic channels must be sheathed using a metal sleeve, a metal foil or a close-mesh metal grid over a length of at least 5 times the channel diameter.
After determining the installation location, a hole must be drilled in the channel wall to insert the welding casing flush. The casing is now welded into place vertically to the channel. The sensor rod is then inserted in this and fastened with a fixing screw. The length of the sensor rod is at least 1/3 and at most 2/3 of the channel diameter.
It can be shortened to the respective optimal length (up to 70 mm) without a problem.
|Sensor||Process measurement||Solid particles in a gas flow|
|Measurement range||from 0.1 mg/m³|
|Process temperature||150 °C (higher temperatures on request)|
|Pressure||max. 2 bar|
|Gas velocity||min. 4 m/s|
95 % rel. hum. or less
|Ambient temperature||- 20... +60 °C|
|Sensor rod||Stainless steel; length 500 or 1,000 mm|
|Protection category||IP 66; ATEX; cat. 1/2 GD|
|Electric connection||Connection room DIN M 20|
|Weight||Approx. 1.5 kg|
|Transmitter||Power supply||110 / 230 V, 50 Hz, 24 V DC|
|Power consumption||12.5 W|
|Current consumption||max. 1 A at 24 V|
|Protection category||IP 65 acc. to EN 60 529/10.91|
|Operating temperature||- 10... + 60 °C|
|Dimensions||258 x 237 x 174 (W x H x D)|
|Weight||approx. 2.5 kg|
|Interface||RS 485 / RS 232 C (ModBus)|
|Cable glands||3 x M16 (4.5 - 10 mm Ø)|
|Screw terminals||0.2 - 2.5 mm_ (AWG 24-14)|
|Current output signal||4 ... 20 mA, load 500 Ω|
|Measurement value alarm relay output||Relay with switching contact max. 250 V AC, 1 A|
|Pulse output||Open Collector - Max. 30 V, 20 mA|
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