ET 301

ET 301 - CEMS

The ET 301 is a dust monitor using well-proven technology providing accurate and rapid results. Being adaptable it can be used on duct sizes from 250mm to 5m making the ET 301 a suitable sensor for a wide range of applications where a dust measurement is required.
 ET 301 continuous dust monitor uses the well-proven sensor technology to directly measure mass particulate concentration by sensing the frictional charge created when particles collide with a conductor.

  • DESCRIPTION

    The advanced electronics of the ET 301 detect this signal and present it to the operator via RS485

    or 4-20mA directly out from the sensor head. The ET 301 also features a built in display for

    viewing live sensor data as well as for configuration and calibration.

    The measurement levels can be corrected to mg/m3 via an integrated calibration function.

    The technique is extremely sensitive, capable of detecting dust concentrations of less than 1mg/m3 in small ducts.

    The ET 301 requires no critical alignment and has no optical surfaces to keep clean. The sensor is easy to install, requiring only a simple probe and is ideal for small duct sizes.

    Minimal maintenance is required, infrequent probe cleaning and low installation costs make this technology extremely attractive for Dust collector monitoring.


    Direct sensing method; actual particulate concentration

    • Automated Online zero and span checking facility
    • Integrated calibration function for mg/m3 output
    • Easy installation with minimal maintenance required
    • Adaptable; suitable for virtually all dust collectors
    • Wide range of duct sizes from 250mm to 2m

  • TECHNICAL SPECIFICATION

    • Operating Range: 0.07 to 6500mg/m3 or 0 – 100%
    • Particle Size: 0.1 to 100μm
    • Duct Diameter: 250mm to 2m
    • Ambient Temperature: -20°C to +55°C
    • Power supply: 48V DC supplied from Power Supply Unit (PSU)
    • Construction: aluminum casting, weatherproof to IP67 (NEMA 4)
    • Analogue outputs: 4-20mA opto-isolated
    • Alarm output: alarm relay 2.5A @ 24V
    • Digital Outputs: RS485 Modbus Bi-Directional

  • DATASHEET

    Brochure and Manual availibe on the Downloads page here.

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