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EnergyTech 501

Ambient Dust Monitor

The perfect monitoring device for coal handling, processing and storage applications


The EnergyTech 501 Ambient Dust Monitor, is an essential part of any application where ambient dust is present such as coal handling, processing and storage. By monitoring the ambient visibility of the handling processes the EnergyTech 501 provides an alarm output for use in containment control.

Fully configurable analogue and alarm outputs are exportable to the plant data acquisition system to provide real-time visibility data. This data is also exported via the RS 485 serial port along with the temperature data. This link delivers MODBUS RTU encoded data to a SCADA system located in the plant control centre and/or a local display module. In addition, the IP65 rated enclosure are coated to resist attack from harsh and aggressive atmospheres. In areas where extremely low temperatures may be experienced, optional transmitter and receiver insulation jackets are available to reduce the effect.

The optionally local display driven from the RS485 enables operators to view output data, diagnostics and alarm setpoints.

Features & Benefits

Typical Applications

Related Products

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GCEM40E - Gas Analyser

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      EnergyTech 501 Specification

      Measuring UnitsK factor(M-1) or metres
      Measurement Range (Typical)0 - 0.015m-1
      Accuracy+/- 0.0002 m-1
      Resolution+/- 0.0001 m-1
      Ambient Temperature Range-20°C to +50°C
      Construction316L S/S (Other grades on request)
      Power 24V DC
      Analogue Outputs2 x 4-20mA isolated current output, 500Ω maximum load, fully configurable
      via provided software.
      Relay Outputs1 x volt-free SPCO contacts, 50V, 1A maximum load, configurable as alarm contacts
      Communications PortRS485 - Modbus RTU

      For a full product specification please download the product brochure below.