Dräger Polytron 5100 EC d S Gas Detector 8344862

Dräger Polytron 5100 EC d S Explosion-Proof Gas Detector (MPN: 8344862)

The Dräger Polytron® 5100 EC d S (Part Number: 8344862, System Code: ETR 0300) is an industrial-grade, explosion-proof fixed gas detection transmitter engineered for continuous monitoring of toxic gases and oxygen O2 in hazardous industrial and marine environments. Operating on a micro-processor architecture paired with pre-calibrated DrägerSensor® EC electrochemical cells, this instrument converts target gas concentrations into a standardized, analog 4 to 20 mA active or passive current loop, supplemented by digital HART® 7 communication.

Constructed from heavy-duty, marine-grade epoxy powder-coated copper-free aluminum, the “d S” variant features a flameproof enclosure (Ex d) with an integrated stainless steel sensor housing. This design is rated for Zone 1, Zone 21, and Class I, Division 1 hazardous locations. It is suited for offshore oil & gas rigs, commercial marine engine rooms, LNG/LPG cargo areas, refinery processing units, and industrial chemical storage plants requiring uninterrupted gas monitoring under severe mechanical and climatic conditions.

Technical Specifications

Key Features

1. Advanced Electrochemical Platform: Fully compatible with intelligent, plug-and-play DrägerSensor® EC electrochemical cartridges embedded with internal non-volatile EEPROM calibration data.
2. Explosion-Proof (Ex d) Heavy-Duty Housing: Marine-grade copper-free cast aluminum enclosure (IP66/67, NEMA 4X) built for aggressive offshore and marine environments.
3. Dual Output Architecture: Regulated 4 to 20 mA analog 2-wire or 3-wire signal with integrated HART® 7 communication protocol for remote diagnostics, configuration, and asset management.
4. Backlit Graphic Interface & Non-Intrusive Operation: High-contrast, backlit dot-matrix LCD (35 x 24 mm) with a 3-button magnetic wand interface for non-intrusive calibration and menu navigation without opening the explosion-proof housing in hazardous areas.

System Compatibility & Modular Architecture

The Polytron 5100 EC d S (8344862) belongs to Dräger’s unified Polytron 5000/8000 mechanical enclosure system.

• Supported Sensors: Compatible with the complete range of Dräger electrochemical sensors, including:
  • DrägerSensor H2S LC (6809610)
  • DrägerSensor CO (6809605)
  • DrägerSensor O2 LS (6809630)
  • DrägerSensor NH3 LC (6809680)
  • DrägerSensor Cl2 (6809665)
  • DrägerSensor SO2 (6809660)
• Central Controllers & Interfaces:
  • Dräger REGARD® 2400 / REGARD® 3900 / REGARD® 7000 Control Systems
  • Standard industrial automation PLCs (Siemens S7-1200/1500, Allen-Bradley ControlLogix, ABB 800xA) via standard 4–20 mA or HART multidrop networks.
• Accessory Compatibility:
  • Remote Sensor Assembly Kit (P/N 6812684)
  • Calibration Adapter / Splash Guard (P/N 6812570)
  • Duct Mount Kit (P/N 6812725)
  • Magnetic Configuration Wand (P/N 4544101)

Part Number Cross-References & Equivalent Models

• Dräger Primary MPN: 8344862
• Transmitter Type Code: ETR 0300 / ETR0300
• Housing Variants:
  • 8344860: Polytron 5100 EC d A (Aluminum housing, standard configuration)
  • 8344864: Polytron 5100 EC d SS (316L Stainless Steel housing for hyper-corrosive environments)
  • 8344120: Polytron 5000 Series Basic EC Transmitter
  • 8344800: Polytron 8100 Series EC (SIL 2 / Digital Fieldbus equivalent model)

Industrial Applications

• Marine & Offshore Operations: Enclosed cargo pump rooms, ballast water treatment rooms (monitoring toxic off-gassing), inert gas system (IGS) generator rooms, battery lockers (H2 monitoring), and drill floor mud pits.
• Oil Refineries & Petrochemical Facilities: Flare stack base areas, sulfur recovery units (SRU), amine treating units, alkylation process zones, and tank storage farms.
• Chemical Manufacturing: Process reaction halls handling Chlorine, Ammonia cooling circuits, phosgene detection, and toxic raw material drum stores.
• Water & Wastewater Treatment: Wet wells, screening rooms, anaerobic digester vaults, and disinfection rooms using gaseous chlorine or sulfur dioxide.

Frequently Asked Questions

What is the main difference between the Polytron 5100 and the Polytron 8100?

The Polytron 5100 is Dräger’s microprocessor-controlled 4–20 mA + HART transmitter designed for reliable industrial monitoring. The Polytron 8100 uses the same sensor platform but adds SIL 2 functional safety certification, advanced data logging capabilities, remote sensor cable extensions up to 30 meters, and optional relays directly integrated on the motherboard.

How do you perform zero-point and span calibration on the Polytron 5100 in an active Ex zone?

Calibration is non-intrusive. Using the included magnetic wand, touch the three front display targets (Up, Down, Enter) through the flameproof viewing window. The internal menu allows you to trigger zero calibration with clean air (or zero gas) and span calibration using certified target span gas applied via the calibration adapter. You do not need to declassify the zone or open the housing.

Can the Polytron 5100 EC d S operate in 2-wire loop-powered installations?

Yes. The unit supports standard 2-wire loop-powered 4–20 mA connections for most electrochemical sensors, simplifying retrofits into legacy wiring infrastructures. If internal relays or advanced fieldbus modules are required, a 3-wire power configuration is standard.