The receiver features status LEDs that allow technicians to quickly assess the detector's state from a distance, reducing the need for direct access in high-risk areas. Normal operation.
4 to 20 mA analog current loop, digital HART® communication, or Modbus.
The Dräger Pulsar 7000 is a stationary open-path gas detector designed to detect explosive hydrocarbons (such as methane, propane, and ethylene) over distances up to 200 meters . It operates using infrared absorption spectroscopy, where a transmitter sends a beam to a receiver, measuring gas concentrations based on the light absorbed.
The Dräger Pulsar 7000 communicates its operational health via the 4–20 mA current loop. Decoded current values represent specific statuses: Current Output Status Meaning Action Required Normal Operation No action; measures gas concentration (0 to 5 LEL-m). 3.5 mA Maintenance / Inhibit Device is in configuration or test mode. 2.0 mA Beam Blockage drager pulsar 7000 manual
Verify that the control panel or mA output reflects the expected target value printed on the test film package (typically within a ±15% tolerance window).
: The system consists of a transmitter that emits infrared radiation and a receiver that converts measured signals into a 4 to 20 mA analogue output.
Slowly adjust the vertical (tilt) adjustment screw until the signal strength reaches its maximum value. The receiver features status LEDs that allow technicians
By following this guide and consulting the Drager Pulsar 7000 manual, you'll be able to get the most out of your gas detection system and ensure a safe working environment.
Initial setup involves zeroing the device, which establishes the reference point for a "gas-free" atmosphere. This is conducted through the digital interface using HART® communication protocols. It is essential that this baseline is set only when the beam path is verified to be clear of contaminants or obstructions to ensure subsequent gas readings are accurate. Functional Verification
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[ TRANSMITTER ] ------------ Infrared Light Beam ------------> [ RECEIVER ] | | (Emits IR Pulses) (Analyzes Signals) | [ 4-20 mA Output ] Key Technical Specifications
| Parameter | Value | |-----------|-------| | Measuring range | 0.01 – 200 mg/m³ | | Resolution | 0.01 mg/m³ | | Flow rate | 2.0 L/min ±0.1 L/min | | Particle size | Respirable (4 µm cut-off with cyclone) | | Operating temp | 0 – 50 °C | | Storage temp | -20 – 60 °C | | Weight | 1.1 kg (with batteries) |
