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Orbis Intrinsically Safe (IS) Heat Detector

£51.64

SKU: ae7b85f7af34 Category: Brand:

Summary

The Orbis IS Heat Detector is for use in applications where smoke detectors are unsuitable and are commonly used where there is a danger of nuisance alarms from smoke detectors.

The Orbis IS range incorporates 7 heat detector classes to suit a wide variety of operating conditions in which smoke detectors are unusable.

Orbis IS Heat Detectors have an open-web casing which allows air to flow across a thermistor which measures the air temperature every 2 seconds. The temperatures are then compared to pre-set values to determine whether the alarm level has been reached.

Classes available:

  • Class A1R
  • Class A1S
  • Class A2S
  • Class BR
  • Class BS
  • Class CR
  • Class CS

Please note, all Orbis Intrinsically Safe Detectors require an Orbis Intrinsically Safe Base in order to be mounted.

Approvals

The Orbis IS Optical Smoke Detector is suitable for use on marine and offshore applications as well as land-based systems and has been tested and approved to the following standards:

European Standard EN54 Fire Detection and Fire Alarm Systems:

  • EN54-5: 2000

Electromagnetic Compatibility:

  • EN61000-6-3
  • EN50130-4

ATEX-Related Standards:

  • BSEN60079-0:2004
  • IEC60079-0:2004
  • EN50020:2002
  • EN/BSEN/IEC60079-26:2004

Marine Type Approval Standards:

  • American Bureau of Shipping (ABS)
  • Bureau Veritas (BV)
  • Det Norske Veritas (DNV)
  • Germanischer Lloyd (GL)
  • Lloyds Register (LR)

Choosing a Heat Detector

Choosing a heat Detector

Features

  • TimeSaver base provides simple installation
  • StartUp flashing LED to confirm devices are wired in the correct polarity
  • Continuity link enables voltage testing of zone wiring before commissioning
  • DustDefy system prevents dust ingress while maintaining airflow
  • Transient rejection uses algorithms to reduce false alarms
  • Drift compensation maintains calibrated sensitivity levels even if the detector is contaminated
  • DirtAlert shows the drift compensation limit has been reached
  • Sensalert indicates incorrect detector operation
  • FasTest maintenance procedure takes just 4 seconds to complete
  • E-Z fit slots allow base to be fixed in position without removing mounting screws
  • 360° visibility of LEDs

Specifications

  • Sampling Frequency: Once every 2 seconds
  • Supply Voltage: 14-28V DC
  • Supply Wiring: 2 wires, polarity sensitive
  • Polarity Reversal: Not allowed
  • Power-up time: < 20 seconds
  • Minimum ‘Detector Active’ Voltage: 12V
  • Switch-on Surge Current at 24V: 105uA
  • Average Quiescent Current at 24V: 80uA
  • Alarm Load: 325 Ohms in series with a 1.0V drop
  • Minimum Holding Voltage: 5V
  • Minimum Voltage to Light Alarm LED: 6V
  • Alarm Reset Voltage: <1V
  • Alarm Reset Time: 1 Second
  • Remote Output LED (-) Characteristic: 4.7kOhms connected to negative supply
  • Material: White Polycarbonate
  • Alarm indicator: Integral indicator with 360° visibility
  • Dimensions (D x H mm): 100 x 42 mm
  • Weight: 70g
  • Operating and Storage Temperature: -40°C to +70°C
    • Operating temperature is restricted by the intrinsic safety gas
    • classification:
    • Class T5: -40°C to +40°C
    • Class T4: -40°C to +60°C
    • The detector must be protected from conditions of condensation or icing
  • Humidity: 0% to 98% relative humidity (no condensation)
  • Wind Speed: Unaffected by wind
  • Atmospheric Pressure: Insensitive to pressure
  • IP Rating to EN 6052:1992: 23D
  • Electromagnetic Compatibility:
  • Emissions: BS EN61000-6-3
  • Susceptibility: BS EN50130-4

Downloads

Additional information

Weight 0.075 kg
Class

A1R, A1S, A2S, BR, BS, CR, CS

Flashing LED

No, Yes

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