The AS-525 online combustible gas detector of Bebur Company adopts catalytic combustion principle technology to detect the concentration of various combustible gases in the ambient air. It can convert the gas concentration monitored on site into a standard 4-20mA signal output or RS485 output It is a standardized three-wire online combustible gas detection instrument suitable for factory applications, featuring LCD on-site display and plug-and-play sensor replacement. It meets the requirements of industrial site safety monitoring for equipment reliability and diverse gas types to be measured.
The AS-525 online combustible gas detector of Bebur Company adopts catalytic combustion principle technology to detect the concentration of various combustible gases in the ambient air. It can convert the gas concentration monitored on site into a standard 4-20mA signal output or RS485 output It is a standardized three-wire online combustible gas detection instrument suitable for factory applications, featuring LCD on-site display and plug-and-play sensor replacement. It meets the requirements of industrial site safety monitoring for equipment reliability and diverse gas types to be measured.
The industries such as petroleum, chemical, metallurgy, environmental protection,paper-making, municipal, biochemical medicine and water treatment.
●Long service life,low-temperature resistance,strong tolerance to sulfide and silane gas poisoning
●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)
●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 | Catalytic combustion |
Gas for detection | Combustible gases (see gas list for details) |
Repeatability | ≤±2% |
T90 reaction time | ＜60s（NH3＜150s） |
Polarization time | 6h |
Calibration | Every 4-8 months |
Reset | Every 3-6 months |
User interface | Infrared remote control |
Operating pressure | Standard atmospheric pressure±10% |
Working humidity | 0-95%RH(no condensation) |
Working temperature | -40℃-70℃(limit)；-20℃-50℃(typical) |
Output signal | 4-20mA，RS485 |
Connection | Analog three-wire system |
Display | Displayed by LCD backlight,gas concentration,alarm display |
Explosion-proofclass | Ex db IIC T6 Gb |
Protection grade | IP66 |
Standard configuration | Detector host、Remote control、Instructions |
Optional configuration | Audible-visual warning light |
Accessories installation | Mounting bracket、Rain cover |
Name | Standard range | Resolution |
Combustible gas（LEL） | 0-100%LEL | 0.1 |
Methane（CH4） | 0-100%LEL | 0.1 |
Ethane（CH3CH3） | 0-100%LEL | 0.1 |
Propane（CH3CH2CH3） | 0-100%LEL | 0.1 |
Isobutane（C4H10） | 0-100%LEL | 0.1 |
Hydrogen（H2） | 0-100%LEL | 0.1 |
Acetylene（C2H2） | 0-100%LEL | 0.1 |
Carbon monoxide（CO） | 0-100%LEL | 0.1 |
Methanol（CH3OH） | 0-100%LEL | 0.1 |
Ethanol（C2H6O） | 0-100%LEL | 0.1 |
Isopropanol（C3H8O） | 0-100%LEL | 0.1 |
Ether（C2H5OC2H5） | 0-100%LEL | 0.1 |
Acetone（C3H6O） | 0-100%LEL | 0.1 |
Acrylonitrile（C3H3N） | 0-100%LEL | 0.1 |
Benzene（C6H6） | 0-100%LEL | 0.1 |
Toluene（C7H8） | 0-100%LEL | 0.1 |
Tel：+86-18001379750
E-mail：sales@bebur.net
Whatsapp：+86-18518487185
Skype：+86-18518487185
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