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, ranging from 0 to 4 up to 0 to 8 LEL m. Dependent on the size of the area, a range of different transmitters are provided; 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).

An alignment kit containing a handheld terminal, test cards, and software is available to align to the transmitter and receiver correctly. 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 that 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 Polytron Pulsar 2 adapts to changing environmental conditions to ensure system integrity to maintain accuracy. 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. Heated optics combat the cold. The receiver instructs the transmitter digitally to increase the flash rate in the wake of interference or on gas detection. Resistant to sunlight, so it can be used in the desert and is 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

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)

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)

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