Drager Polytron Pulsar 2

Code: Polytron Pulsar 2
  • Discontinued
  • Open Path Detector
  • Approvals ATEX, IECEx, CSA and UL

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Now obsolete replacement here

The Drager Polytron Pulsar 2 is a fixed gas open path detector for flammable gases using a transmitter and receiver. The infrared beam is transmitted to the receiver, and the resulting IR absorption signal loss determines the gas reading.  Explosion-proof it can be used in hazardous zone areas.  As standard, it detects Methane or Propane as selected by the user, ranges from 0 to 4 up to 0 to 8 LEL m.  Dependent on the area being monitored a range of different transmitters are provided reflecting the distance between transmitter and receiver. 4 to 60 m, 30 to 120 m or 100 to 200 m, (13 to 197 ft, 98 to 394 ft or 328 to 656 ft).

To align to the transmitter and receiver correctly an alignment kit containing a handheld terminal, test cards and software is available. Once aligned, automated zeroing of gas completes the install. Manual aligning or gas testing is not required. The 4-20mA output variation indicates fault detection. Under 1mA out means the beam is blocked or hardware fault.  2mA identifies a recent beam block which will fault if blockage time exceeds one hour. A 3.5mA output indicates misalignment or dirt interference, a pre-warning signal to schedule maintenance, monitoring will still be operational.

The receiver logs gas readings, signal strength/blocks and temperature for up to a week. A condensed version is stored for up to a month. To ensure system integrity, the Polytron Pulsar 2 adapts to changing environmental conditions to maintain accuracy. Heated optics combat the cold. The receiver instructs the transmitter digitally to increase the flash rate in the wake of interference or on the detection of gas. The detector is resistant to sunlight so can be used in the desert, also immune to flare stacks, so it is ideal for oil and gas applications.

Hart communication allows digital access to the Pulsar outside hazardous areas.

Equipped with all the same functions as the standard Drager Pulsar, Pulsar 2 is fitted with an ABS moulded cover and is supplied with either a junction box or certified connector to provide complete flexibility during installation.

GD8/2

Drager Polytron Pulsar 2 with ABS moulded cover and EEx e certified junction box

2350493 Polytron Pulsar 2 ATEX 4-60m (Complete TX + RX)
2350494 Polytron Pulsar 2 ATEX 30-120m (Complete TX + RX)
2350495 Polytron Pulsar 2 ATEX 100-200m (Complete TX + RX)
2350499 Polytron Pulsar 2 ATEX 4-60m (TX only)
2350500 Polytron Pulsar 2 ATEX 30-120m (TX only)
2350501 Polytron Pulsar 2 ATEX 100-200m (TX only)
2350502 Polytron Pulsar 2 ATEX 4-120m (RX only)
2350503 Polytron Pulsar 2 ATEX 100-200m (RX only)
2350340 Polytron Pulsar 2 ATEX 4-120m (RX only Ethylene)
2350341 Polytron Pulsar 2 ATEX 100-200m (RX only Ethylene)

Drager Polytron Pulsar 2 with ABS moulded cover and EEx d certified plug and socket connectors

2350496 Polytron Pulsar 2 ATEX 4-60m (Complete TX + RX)
2350497 Polytron Pulsar 2 ATEX 30-120m (Complete TX + RX)
2350498 Polytron Pulsar 2 ATEX 100-200m (Complete TX + RX)
2350504 Polytron Pulsar 2 ATEX 4-60m (TX only)
2350506 Polytron Pulsar 2 ATEX 30-120m (TX only)
2350507 Polytron Pulsar 2 ATEX 100-200m (TX only)
2350508 Polytron Pulsar 2 ATEX 4-120m (RX only)
2350509 Polytron Pulsar 2 ATEX 100-200m (RX only)
2350342 Polytron Pulsar 2 ATEX 4-120m (RX only Ethylene)
2350343 Polytron Pulsar 2 ATEX 100-200m (RX only Ethylene)

Drager Polytron Pulsar 2 Accessories

2350298 Junction Box Dräger Polytron Pulsar 2 ATEX
2350306 AI500 Digital Interface Unit for Dräger Polytron Pulsar 2
2350325 Dräger Polytron Pulsar 2 Alignment Kit, ATEX/CSA
2350326 Adapter AI500 to HHT or PC
2350327 Dräger Polytron Pulsar 2 PC Software with cable (supports Pulsar, AI500 and HHT)
2350238 Data Wand for AI500
2350339 Attenuator plate AP800
2350322 Dräger Polytron Pulsar 2 Remote Junction Box/HHT Kit
2350505 Dräger Polytron Pulsar 2 Alignment Telescope
2350510 ABS Moulded Cover
2350518 Gas Cell Kit single pass – Methane and Propane
2350521 Gas Test Sheets (set of 5, spares for p/n 2350325)

Past part numbers

2350493 Range 60m / 197 ft with JB
2350494 Range 120m / 394 ft with JB
2350495 Range 200m / 656 ft with JB
2350496 Range 60m / 197 ft with EEx d plug and socket
2350497 Range 120m / 394 ft with EEx d plug and socket
2350498 Range 200m / 656 ft with EEx d plug and socket

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Title Size
Polytron-Pulsar-2-datasheet 141 KB
Polytron-Pulsar-2-Manual 717 KB

Additional information

Weight0.09 kg