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4750-PM (PM-CEMS - EN 15267)

High-sensitivity, back-scatter laser measurement for particulate matter, for use in combustion processes where condensed water is not present.
  • Overview +

    The 4750-PM is a laser analyser that uses a back-scattering technique to provide accurate, reliable measurements of particulate matter in stacks and ducts, for processes where condensed water is not present.

    With a rugged design suitable for a wide range of applications, it features a highly stable optical system, with large-area collection, offering a low detection limit of less than 1 mg/m3.

    Operating in a wide temperatures range, the 4750-PM uses a stack-mounted sensor with combined internal user interface, and has no moving parts, since the optical path is pre-set to maximise measurement across the stack.

    Suitable for use as a continuous emission monitor (PM-CEMS) for compliance or process monitoring, the 4750-PM is idea for applications in the power generation, glass, industrial boilers, metals refining, minerals and pulp & paper industries. Minimum duct size is 1.5 m (59 inches).

    Employing a non-intrusive, laser back-scattering sensor, the 4750-PM does not require any delicate components to be placed in the stack, so it can be used in temperatures up to 250°C (400°F).

    Filter audit units allow for periodic linearity checks to ensure compliance with international and national emission monitoring standards. Zero and upscale calibration can be checked by inserting pre-defined filters to suit compliance requirements.

    As particles travel through the laser beam, they scatter light in all directions. Back-scattered light is collected on a detector, with the instrument design ensuring that stray light is eliminated.

    The 4750-PM is AMETEK Land’s PM-CEMS dust monitor for continuous particulate matter measurements.

    TUVdotCOM approved to EN 15267.
    TUV Rheinland Certified

  • Specifications +

    Measuring Probe 
       Measuring Technique: Back-scatter Optical Detection 
       Light Source: Diode Laser 650 nm. Class 3R
       Measurement Range: 0-1000 mg / m3
       Detection Limit: < 1 mg / m3
       Resolution 0.1 mg / m3
       Response Time 2s
       Operating Temperature: -20 ° C to 50 °C / -4 °F to 122 °F 
       Max. Flue Gas Temperature: 250 °C (480 °F)
       Stack Pressure ± 20 hPa
       Stack Size 1.5 m - 15 m (5ft - 50 ft)
       Stack Mounting Flange: DN80 PN10/16 or 3 in. 150 lb ANSI
       Materials: Enclosure: Powder-coated aluminum
       Air Purge: 30 - 40 liter/minute (1.05 to 1.41 cfm)  
       Sealing: IP65
       Power Supply: 100 to 230 V ac
       4-20 mA Outputs:
       Outputs: 1x RS485 Modbus
    1 x digital input
       Alarms 2 x Relays
       Size (H x W x D): H 216 mm x W 199 mm x L 354 mm ( H 14 in x W 8.5 in x L 8 in)
       Weight 9.6 kg (21 lb)
       Options: Calibration Audit, Manual Test Kit
       Purge Air:
    Purge fail sensor and alarm
       Blower: Purge blower and blower cover
       Flue Gas Protection:
    Flue gas blocker
       Approvals: EN 15267 certified by TUVdotCOM
  • Documentation +

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