The receiver calculates the ratio of the two signals. If hydrocarbons cross the beam, the measuring signal drops relative to the reference signal. The system converts this ratio into a gas concentration measured in LEL meters (Lower Explosive Limit × meters) . Key Technical Specifications Range Classes: Short Range: 4 to 20 meters (13 to 65 ft) Medium Range: 20 to 60 meters (65 to 196 ft) Long Range: 60 to 120 meters (196 ft to 393 ft)
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Depending on your specific application and distance requirements, the Pulsar 7000 family is divided into distinct models optimized for various path lengths: drager pulsar 7000 manual
: Optical sensors in the receiver detect how much IR radiation is absorbed by gas clouds on the path. Signal Output
Open-path gas detectors require minimal maintenance compared to point-source sensors, but routine checks are vital for safety compliance. Optics Cleaning The receiver calculates the ratio of the two signals
Heavy scratching on the sapphire window, internal component degradation, or significant structural misalignment shifting the beam to the edge of the lens.
4 to 20 mA Signal Output (Source or Sink configurations, depending on internal jumper settings) Terminal 4: HART® Communication Interface (+) Terminal 5: HART® Communication Interface (-) Terminal 6/7: Earth/Shield Ground Current Output States Key Technical Specifications Range Classes: Short Range: 4
The manual outlines a specific sequence to ensure the user receives oxygen immediately.
use abrasive cleaners or harsh solvents, which can scratch or strip the anti-reflective coatings. Bump Testing
Dräger provides several official manuals for the Pulsar 7000 Series. The most commonly accessed are available directly from Dräger’s official website or through authorized distributors. The primary document is the for the Dräger Pulsar 7000 Series (OTR 00**).
The Dräger Pulsar 7000 consists of two primary components: a which emits an infrared beam, and a Receiver (Rx) which detects the beam and analyzes it for gas attenuation. Key Models and Operating Ranges