Dräger Polytron Pulsar Duct Mount

Duct gas detector

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“Technology for Life” is the guiding philosophy. Whether in the operating room, in intensive care or emergency response services, Dräger / Draeger products protect, support and save lives.

Dräger offers its customers anaesthesia workstations, medical ventilation, patient monitoring as well as neonatal care for premature babies and newborns. With ceiling supply units, IT solutions for the OR, and gas management systems the company is at the customer’s side throughout the entire hospital.

Emergency response services, law and regulatory enforcement and the industry trust in Dräger’s integrated hazard management, in particular for personal protection and plant safety. This includes: respiratory protection equipment, stationary and portable gas detection systems, professional diving equipment and systems, as well as alcohol and drug impairment detection. In collaboration with its customers Dräger develops customized solutions, such as entire fire training systems, training concepts and workshops.

Dräger has about 13,500 employees worldwide and is currently present in more than 190 countries. The company has sales and service subsidiaries in over 50 countries. Its development and production facilities are based in Germany, Great Britain, Sweden, South Africa, the USA, Brazil, the Czech Republic and China.

The Polytron Pulsar Duct Mount gas detector offers the latest infrared technology for monitoring ducts and enclosed paths for a wide range of gaseous hydrocarbons. These include the alkane series from methane to hexane, propylene, methanol, ethanol and ethylene


Easy adjustment and commissioning

  • Designed for one man installation and commissioning through use of a hand-held terminal the Polytron Pulsar Duct Mount transmitter and receiver can be accurately aligned, gas level zeroed and commissioned with maximum efficiency. The factory calibration of the Polytron Pulsar Duct Mount makes manual setting and test gas superfluous.

System stability

  • The detector is designed so that no fault remains undetected. During normal operation, the output signal is between 4 to 20 mA, depending on the measured gas concentration. A signal of < 1 mA represents a fault due to a constant beam block or hardware failure requiring immediate attention. However, a signal of 2 mA identifies a beam block and will go to fault if this persists for more than 60 minutes. The Pulsar Duct Mount will also output a 3.5 mA signal to indicate pre-warning where the optics may be dirty or miss-aligned. During the period which the Pulsar displays ‘Pre-warning’ it will still detect gas allowing the customer to schedule maintenance on the detector therefore reducing down time. With no unrevealed faults, the Pulsar 2 is SIL 2 capable.

Extensive access to data from safe areas

  • The optional Polytron Pulsar Software can provide easy access to configuration, current measured values and the internal data-logger from a non-hazardous area through Digital Communication. For large and complex installations, the Pulsar software can allow integration of several devices via the AI500. Up to 32 AI500’s can be multi dropped; therefore allowing access to up to 128 pulsars – useful for planning service and maintenance measures.

High performance

  • The Pulsar receiver communicates to the transmitter via a digital link which allows the receiver to identify and adjust to fluctuating environmental conditions. The microprocessor built into the receiver unit instructs the transmitter unit to increase the flash rate for increased performance and accuracy. The Pulsar is immune to influences such as sunlight, gas flares, arc welding or resonance effects due to vibrations of rotating parts, as well as to environmental influences such as mist, drizzle or snow. The flash rate is also increased upon the detection of gas to ensure both accuracy and fast response.

In-built database

  • The receiver logs records and details a report of the last seven working days and a summary of the last 32 weeks. These reports contain important information such as measuring values, i.e. “beam block”, gas readings, warning signals, signal strength, adjustments, supply voltage and operating temperature.

Worldwide Approvals

  • The Polytron Pulsar 2 holds a performance approval from FM and global product approvals including ATEX, IECEx, CSA and UL.

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