Combustible Gas Detector "Dräger Polytron 8700IR"
High efficiency and high stability! Combustible gas detectors adapted to harsh industrial environments such as offshore facilities.
The "Dräger Polytron 8700IR" is a high-performance explosion-proof gas detector that detects combustible gases at the lower explosive limit (LEL). It is equipped with the high-performance infrared "Dräger PIR7000 sensor," which quickly detects the most common hydrocarbon gases. In addition to a 3-wire 4-20mA analog output with relays, it also offers Modbus and various fieldbus options, making it possible to integrate into any control system. 【Features】 ■ High efficiency, excellent stability, and robustness ■ Easy device management using digital communication ■ Common platform design and common operating system ■ Three relays for controlling external devices ■ Safe and robust housing For more details, please refer to the catalog or feel free to contact us.
basic information
**Main Specifications** ■ Type - Pressure-resistant explosion-proof type "d" model - Combination of safety increased explosion-proof type "d/e" model ■ Target Gas: Flammable gases and vapors ■ Measurement Range - Methane, propane, ethylene: 0–20…100% LEL - Methane: 0–100 Vol.% ■ Display: Backlit graphic LCD, 3 status LEDs (green/yellow/red) ■ Electrical Specifications ◎ Analog Signal Output - Normal Operation: 4–20 mA - Maintenance: Constant current 3.4 mA or 4 mA ±1 mA 1 Hz modulation; (adjustable) - Fault: <1.2 mA ◎ Power Supply: 10–30 VDC, 3-wire ◎ Power Consumption (maximum): No relay 300 mA (24V) / With relay 350 mA (24V) ◎ Relay Specifications (optional): 2 alarm relays, 1 fault relay, single pole double throw contact (SPDT) 5A @ 230VAC, 5A @ 30VDC, contact resistance *For more details, please refer to the catalog or feel free to contact us.*
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Applications/Examples of results
【Usage】 ■Detection of combustible gases at the lower explosive limit (LEL), etc. *For more details, please refer to the catalog or feel free to contact us.
