Draeger REGARD 3000 Gas Detection Controllers
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The Dräger Polytron® 8700 IR is an advanced explosion proof transmitter for the detection of combustible gases in the lower explosion limit (LEL).
The Draeger Polytron® 8700 IR is an advanced, explosion-proof gas transmitter engineered for the continuous monitoring of flammable hydrocarbon gases and vapors. Operating in both the lower explosion limit (LEL) and parts-per-million (ppm) ranges, this high-performance transmitter offers reliable, rapid-response gas detection in the most challenging industrial environments.
At the heart of the Polytron 8700 is the Draeger PIR 7000, a premier infrared (IR) sensor celebrated globally for its exceptional measurement stability, rapid response times, and robust resistance to environmental contaminants. Whether installed on offshore platforms, in petrochemical facilities, or during heavy industrial processing, the Polytron 8700 IR delivers the precise, drift-free safety performance your plant operators rely on.
In demanding industrial plants, typical gas detectors fall victim to environmental wear and high operational overhead. The Polytron 8700 IR directly solves these pain points:
Eliminates Costly False Alarms & Sensor Drift: Traditional optical sensors struggle with dirt, dust, and aging. The PIR 7000 sensor uses a double-compensated, four-beam optical system. By automatically compensating for dirty optics or physical degradation, it ensures continuous uptime without triggering false safety shutdowns.
Simplifies Complex On-Site Calibration: Rather than wasting time with complex field calibrations for different target gases, the integrated smart gas library of up to 100 gases allows your team to change target gases on the fly. Selecting a gas from the menu automatically cross-calibrates the transmitter using standard calibration gases like methane or propane.
Reduces Training & Maintenance Overhead: As part of the unified Polytron 8000 series, this transmitter shares an identical user interface and operating philosophy with other units in your plant. Your technicians only need to learn one system, dramatically lowering training time, reducing human error, and streamlining inventory.
Cost-Effective Standalone Operation: In remote areas where routing extensive cabling back to a central control system is cost-prohibitive, the optional three integrated relays allow the Polytron 8700 to function as a fully independent safety system. It can locally control horns, strobe lights, or safety valves directly.
Core Sensor: Draeger PIR 7000 infrared gas sensor with SS 316L stainless steel enclosure and drift-free optics.
Measuring Ranges: Fully adjustable between 0 to 350 ppm and 0 to 100% LEL, allowing versatile deployment from leak detection to explosion prevention.
Optical Stability: Double-compensated four-beam measuring system resists dust, dirt deposits, and aging effects.
Output Signal: 3-wire, 4 to 20 mA analog output.
Digital Protocols: Full compatibility with HART®, Modbus RTU, PROFIBUS PA, and FOUNDATION Fieldbus H1.
Asset Management: Seamless integration with standard asset management software like PactWare via Device Type Manager (DTM).
Local Display: Large, backlit graphic display showing gas concentration, selected target gas, and measuring units.
Status Indication: Highly visible green (normal), yellow (error/maintenance), and red (alarm) LEDs provide clear status at a glance.
Non-Intrusive Operation: Rated for hazardous areas, the device can be fully operated using a magnetic wand through the explosion-proof glass window, keeping the enclosure sealed and safe during maintenance.
Integrated Data Logger: Built-in data memory stores up to 35,000 logs and displays a real-time 15-minute history trend graph on-screen.
Housing Materials: Choice of epoxy-coated copper-free aluminum or premium 316 L stainless steel.
Hazardous Area Ratings: Approved for Class I, Div. 1, Groups A, B, C, D environments; ATEX/IECEx Zone 1.
Ingress Protection: IP65, IP66, and IP67 certified to withstand high-pressure washdowns and harsh marine environments.
Operating Temperatures: Extremely wide functional range from -40°C to +77°C (-40°F to +170°F).
Remote Installation: Supports remote sensor mounting up to 30 meters away using a dedicated remote junction box, keeping technicians safe when monitoring hard-to-reach areas.
Industrial safety is about more than just buying a component; it is about partnering with experts who understand your processes. By combining the industry-leading engineering of Draeger with our specialized local technical support and application expertise across Eastern Canada, we ensure your facility remains safe, compliant, and highly productive.
