AMETEK Land Carbon Monoxide Detectors - Silowatch Carbon Monoxide Detector
An advanced carbon monoxide detector designed to provide early warning of spontaneous combustion in in coal and biomass storage silos.
  • Overview +

    Specifically designed for detection of early-stage fire risk in storage silos for coal and biomass fuels, Silowatch continuously monitors and quickly responds to sudden carbon monoxide (CO) build-up, allowing preventative action to be taken before a fire develops.

    Silowatch provides fast, accurate monitoring of CO in the silo, using AMETEK Land’s unique dual-sensor detection system. The detection of sudden CO build-up enables operators to act quickly, protecting your personnel, securing expensive silo equipment and avoiding costly downtime.

    Silowatch works by extracting the sample gas from the silo headspace and continuously monitoring the CO level. Automatic calibration ensures high measurement integrity, while alarms can be customised to individual silo conditions.

    Designed specific for use in coal and biomass storage silos, Silowatch ensures the protection of people, plant and process.

    Silowatch has been proven in dozens of applications worldwide, providing enhanced safety and continuous monitoring. The detector’s extractive dual sensor system allows very high stability and automatic detection of calibration drift. As an additional precaution, an optional oxygen measurement is available for monitoring oxygen-limited silos.

    The detector’s dual sensors constantly check CO levels at the silo headspace, using extractive analysis. The sensor’s fast response - T90 typically < 50 seconds - to increased CO levels provides the earliest possible warning to the operator of worsening conditions.

    An optional Z-purge allows the Silowatch analyzer to be installed in Class II Div 2 hazardous areas.

    Silowatch is AMETEK Land’s carbon monoxide detector for detection of spontaneous heating and spontaneous combustion in biomass and coal silos.
  • Specifications +

    Measurement Range
       CO Measurement Ranges 0-100 up to 2000 ppm in 50 ppm steps
       Resolution 1 ppm / 1 mg/m3
       Optional O2 Ranges 0 - 5 % to 0 - 25 %
       Calibration Method Automatic 2-point calibration span and zero
    User Interface
       Type LCD with backlight 4 x 20 character, 8 access keys
       Analog Output 4 to 20 mA isolated current loop for each CO & O2 measurement
       Relay Outputs 2 x Level Alarms; System OK; Calibration/Maintenance
       Relating Rating Isolated changeover (Type C) 1 A @ 240 V a.c. or 5 A @ 240 V d.c.
       System Enclosure Painted steel, sealed IP65 / NEMA 4
       Ambient Temperature 0 to 45 °C / 32 to 113 °F standard;
    to -20 °C / -4 °F with optional case heater;
    to 50 °C / 122 °F with optional vortex cooler
       EMC Conforms to EN-50 081 & EN-50 082
       Electrical Safety Conforms to EN-61010-2
       Power Supply 100 - 120 V a.c. or 190 to 240 V a.c., 50-60 Hz, 300 VA
    Gas and Air Requirements
       Instrument Air (cooling) 5 - 10 bar / 70 - 150 psi clean and dry, 300 l/min/10.5 cfm
       Calibration Gas 100 ppm to 500 ppm CO, balance N2 recommended
    2 bar / 30 psi
    20 litres (0.7 cu.ft.) per calibration approx.
       Size (H x W x D) 600 x 600 x 350 mm / 24 x 24 x 14 in.
       Weight 53 kg . 117 lb.
       Options Twin Stream CO
    System Sample Probe and Lines
    Heating / Cooling
    Z-purge for hazardous area operation
    Oxygen measurement (Single Stream only)
  • Documentation +

  • Related Applications +

    • Biomass - Coal - Storage Silo
      Storage Silo

      Early detection of spontaneous combustion in stored coal or biomass is vital to prevent uncontrolled fires. We recommend the dedicated Silowatch carbon monoxide (CO) monitor and ARC thermal imager for this safety application.

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