AS-300 Fixed Infrared Gas Detector

The Bebur AS-300 fixed infrared gas detector is a gas online monitoring device that can continuously and online detect the concentration of hydrocarbon gases and CO2 in the ambient air. The instrument adopts the NDIR infrared principle and can transmit the real-time gas data detected on site through 4-20mA signals or RS485 signals. It is a standard three-wire fixed infrared gas detector with on-site LCD display and plug-and-play sensor replacement, meeting the application requirements of different industries.

Product Details

AS-300 Fixed Infrared Gas Detector product overview

The Bebur AS-300 fixed infrared gas detector is a gas online monitoring device that can continuously and online detect the concentration of hydrocarbon gases and CO2 in the ambient air. The instrument adopts the NDIR infrared principle and can transmit the real-time gas data detected on site through 4-20mA signals or RS485 signals. It is a standard three-wire fixed infrared gas detector with on-site LCD display and plug-and-play sensor replacement, meeting the application requirements of different industries.

Applications

The industries such as petroleum, chemical, metallurgy, environmental protection, paper-making, municipal, biochemical medicine and water treatment.

Features

●Built-in temperature compensation circuit for accurate measurement

●Designed with cover-free style, infrared remote control calibration, operation

●Cast aluminum shell, suitable for various industrial environments

●Easy to install and maintain, sensor replacement on site (plug and play)

●Multiple range options can meet requirements of customers

●Standard three-wire 4-20mA signal output or RS485 output, compatible with DCS or PLC system

●Field level-2 sound and light alarms, relay output (with the external equipment such as external exhaust connected）

Technical parameters

Principle of detection	NDIR
Gas for detection	Hydrocarbon and CO2 gases
Repeatability	≤±3%
T90 reaction time	<30s<>
Power supply	24VDC
Power consumption	<2.5w<>
Polarization time	24h
Calibration	Every 4-8 months
Reset	Every 3-6 months
User interface	Infrared remote control
Working temperature	40°C-70°C (limit); -20°C-50°C (typical)
Operating pressure	Standard atmospheric pressure ±10%
Working humidity	0-95%RH (no condensation)
Output signal	Three-wire system 4-20mA, RS485
Display	Field LCD display
Explosion-proof class	Ex db IIC T6 Gb/Ex tb IIIC T80℃ Db
Protection grade	IP66
Standard configuration	Detector host;Audible-visual warning light;Remote control;Instructions
Accessories installation	Mounting bracket;Rain cover