AS-300 Toxic and Harmful Gas Detector
Category:
AS-300 is a fixed gas detector that can constantly detect the concentration of toxic and harmful gases in the ambient air online . Based on the principle of electrochemistry, the instrument can transmit the real-time gas data detected on site via 4-20mA signal or RS485 signal. It is a standard three-wire toxic gas detector with the functions such as field LCD display and sensor replacement(plug and play) , meeting the application requirements of different industries .
sales@bebur-tech.com
- Product details
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AS-300 is a fixed gas detector that can constantly detect the concentration of toxic and harmful gases in the ambient air online . Based on the principle of electrochemistry, the instrument can transmit the real-time gas data detected on site via 4-20mA signal or RS485 signal. It is a standard three-wire toxic gas detector with the functions such as field LCD display and sensor replacement(plug and play) , 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.
Type of gas detected
Serial No.
Name
Chemical formula
Standard range
Highest range
01
Ammonia
NH3
0-100PPM
0-500PPM
02
Carbon monoxide
CO
0-1000PPM
0-2000PPM
03
Sulfur dioxide
SO2
0-20PPM
0-150PPM
04
Formaldehyde
CH2O
0-10PPM
0-500PPM
05
Ethylene oxide
ETO
0—10PPM
0-500PPM
06
Vinyl chloride
C2H3CL
0-10PPM
0-500PPM
07
Chlorine
CL2
0-10PPM
0-50PPM
08
Ozone
O3
0-5PPM
0-100PPM
09
Hydrogen sulfide
H2S
0-50PPM
0-100PPM
10
Hydrogen chloride
HCL
0—20PPM
0-200PPM
11
Hydrogen cyanide
HCN
0-20PPM
0-100PPM
12
Nitric oxide
NO
0-100PPM
0-1000PPM
13
Nitrogen dioxide
NO2
0-20PPM
0-150PPM
14
Oxygen
O2
0-25%VOL
0-30%VOL
15
Acrylonitrile
C3H3N
0-10PPM
0-100PPM
16
Ethylene
C2H4
0-10PPM
0-1500PPM
17
Chlorine dioxide
CLO2
0-2PPM
0-5PPM
For more gas types, please contact local sales distributors .
AS-300Toxic and Harmful Gas Detector
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
Electrochemistry
Standard configuration
Detector host
Audible-visual warning light
Remote control
Instructions
Accessories installation
Mounting bracket
Rain cover
Gas for detection
Toxic and harmful gases (see gas list for details)
Repeatability
≤±3%
T90 reaction time
< 60s (NH3 < 150s)
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 ° C Db
Protection grade
IP66
Application industry
Environmental Protection Industry
We have developed and launched a series of water quality analyzers, flow meters, liquid level gauges, and gas detectors for applications in municipal drinking water, municipal sewage, industrial wastewater, spa pool disinfection, space disinfection, chemical plant gas leak emission detection, and other fields.
Energy
We have developed and launched a series of water quality analyzers, flow meters, liquid level gauges, and gas detectors for applications in municipal drinking water, municipal sewage, industrial wastewater, spa pool disinfection, space disinfection, chemical plant gas leak emission detection, and other fields.
Food Manufacture & Processing
We have developed and launched a series of water quality analyzers, flow meters, liquid level gauges, and gas detectors for applications in municipal drinking water, municipal sewage, industrial wastewater, spa pool disinfection, space disinfection, chemical plant gas leak emission detection, and other fields.
Chemical Engineering
We have developed and launched a series of water quality analyzers, flow meters, liquid level gauges, and gas detectors for applications in municipal drinking water, municipal sewage, industrial wastewater, spa pool disinfection, space disinfection, chemical plant gas leak emission detection, and other fields.
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