Online Gas Detector for Single Gas

Features

• The sensor has good anti-interference performance and a service life of up to 3-5 years;
• It adopts advanced microprocessor technology, with fast response speed, high measurement accuracy, good stability and repeatability;
• The detection site has on-site sound and light alarm function. Instant alarm when gas concentration exceeds the standard. It is a safety guarantee for dangerous on-site operations;
• On-site large-screen LCD display with backlight. Intuitive display of gas concentration/type/unit/working status, etc.;
• Independent gas chamber, easy replacement of sensors. No on-site calibration is required for replacement. Automatic identification of key sensor parameters;
• Full range temperature digital automatic tracking compensation to ensure measurement accuracy;
• Ultra-low power consumption of semiconductor nanotechnology 32 Micro-position measuring instrument;
• Full software automatic calibration. The sensor has up to 6 target point calibration functions. Ensure the accuracy and linearity of the measurement, and have data recovery function;
• With overvoltage protection, lightning protection, short circuit protection, reverse connection protection, anti-static interference, anti-magnetic field interference and other functions;
• With automatic recovery function to prevent external reasons, human reasons, natural disasters and other damage to the instrument;
• Simple and practical, with temperature compensation function;
• Automatic protection function against high concentration gas shock.

Specifications

Types	With display and alarm; With display but without alarm; Made entirely of stainless steel; Wireless signal transmission;
Detection range	0-100%LEL, 0-1%/10%/30%/100%VOL, 0-5/10/100/1000/10000ppm, mg/m³ (depending on the sensor principle)
Working voltage	DC24V±10%
Sampling accuracy	±2%FS
Repeatability	±2%FS
Working temperature	-30~70℃
Storage temperature	-40~70℃
Working current	≤50mA
Installation method	Fixed, wall-mounted, diffused, etc. installation
Receiving device	User computer, control alarm, PLC, DCS, DDC, etc.
Service life	3~5 years
Output signal	①4-20mA signal: standard 12-bit precision 4-20mA output chip, transmission distance 1Km ②RS485 signal: standard MODBUS RTU protocol, transmission distance 1Km ③ Voltage signal: 0.4-2V, 0-5V, 0-10V output, optional (voltage output and current output, choose one) ④ Switch signal: 1 set of passive contact relays, capacity 220VAC 3A/24VDC 3A ⑤ GPRS, 4G, WIFI, LORA, ZigBee and other wireless signals, optional
Baud rate	9600
Detection principle	Catalytic combustion/electrochemistry/infrared NDIR/semiconductor/thermal conductivity/PID photoionization (depending on the measured medium)
Response time	＜10S
Working humidity	0-100% RH (no condensation)
Long-term drift	≤±2% FS/year
Warm-up time	30S
Working air pressure	80KPa~120KPa
Warranty period	2 years
Shell material	Aluminum alloy
Explosion-proof form	The probe transmitter and sensor are both explosion-proof.
Explosion-proof grade	ExdIICT6
Protection grade	IP66 waterproof splash and short-term rain, long-term rain requires optional rain cover or housing without display
Alarm method	On-site sound and light alarm, external alarm, remote controller alarm, computer data acquisition software alarm, etc.
Alarm setting	Standard configuration of two-level alarm, optional three-level alarm; alarm mode can be set: conventional high and low alarm, interval control alarm
Electrical interface	Default M20X1.5 internal thread, optional 3/4NPT, 1/2NP
Connecting cable	①4～20mA selects three-core shielded cable, RS485 selects four-core, when the distance exceeds 1000 meters (with one detector), the single wire diameter is ≥1.5mm, and the shielding layer is connected to the ground. ②Wireless transmission: Built-in LORA, Zigbeg module, short-distance wireless transmission; external GPRS/4G module, remote data transmission to the cloud platform, can view historical records on the computer and mobile phone, without distance restrictions (optional)

Online Gas Detector Detectable Gases and Measuring Ranges

Detection gas	Range	Maximum allowable error	Minimum reading	Response time T90
Combustible gas (EX)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤10 seconds
Combustible gas (EX)	0-100%Vol	＜±3%(F.S)	0.1%Vol	≤10 seconds
Methane (CH4)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤10 seconds
Methane (CH4)	0-100%Vol	＜±3%(F.S)	0.1%Vol	≤10 seconds
Oxygen (O2)	0-30%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Oxygen (O2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Oxygen (O2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Nitrogen (N2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Carbon monoxide (CO)	0-100ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Carbon monoxide (CO)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Carbon monoxide (CO)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Carbon monoxide (CO)	0-20000ppm	＜±3%(F.S)	1ppm	≤25 seconds
Carbon monoxide (CO)	0-100000ppm	＜±3%(F.S)	1ppm	≤20 seconds
Carbon dioxide (CO2)	0-500ppm	＜±3%(F.S)	1ppm	≤20 seconds
Carbon dioxide (CO2)	0-2000ppm	＜±3%(F.S)	1ppm	≤20 seconds
Carbon dioxide (CO2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Carbon dioxide (CO2)	0-50000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Carbon dioxide (CO2)	0-20%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Carbon dioxide (CO2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Carbon dioxide (CO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Formaldehyde (CH2O)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Formaldehyde (CH2O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤45 seconds
Formaldehyde (CH2O)	0-1000ppm	＜±3%(F.S)	1ppm	≤20 seconds
Ozone (O3)	0-1ppm	＜±3%(F.S)	0.001ppm	≤20 seconds
Ozone (O3)	0-5ppm	＜±3%(F.S)	0.001ppm	≤20 seconds
Ozone (O3)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ozone (O3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ozone (O3)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ozone (O3)	0-30000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Ozone (O3)	0-20mg/L	＜±3%(F.S)	0.01mg/L	≤30 seconds
Ozone water (O3)	0-20mg/L	＜±3%(F.S)	0.01mg/L	≤30 seconds
Hydrogen sulfide (H2S)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Hydrogen sulfide (H2S)	0-10000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Sulfur dioxide (SO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤45 seconds
Sulfur dioxide (SO2)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfur dioxide (SO2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfur dioxide (SO2)	0-500ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Sulfur dioxide (SO2)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Sulfur dioxide (SO2)	0-10000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Nitrogen monoxide (NO)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Nitrogen monoxide (NO)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen monoxide (NO)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen dioxide (NO2)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤25 seconds
Nitrogen dioxide (NO2)	0-5000ppm	＜±3%(F.S)	1ppm	≤25 seconds
Nitrogen dioxide (NO2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Nitrogen oxides (NOX)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen oxides (NOX)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Nitrogen oxides (NOX)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Chlorine (CL2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Chlorine (CL2)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Chlorine (CL2)	0-200ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Chlorine (CL2)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ammonia (NH3)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ammonia (NH3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ammonia (NH3)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ammonia (NH3)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Ammonia (NH3)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Hydrogen (H2)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Hydrogen (H2)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Hydrogen (H2)	0-20000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Hydrogen (H2)	0-40000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Hydrogen (H2)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Helium (He)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Argon (Ar)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤10 seconds
Xenon (Xe)	0-100%Vol	＜±3%(F.S)	0.01%Vol	≤30 seconds
Hydrogen cyanide (HCN)	0-30ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen cyanide (HCN)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen chloride (HCL)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen chloride (HCL)	0-200ppm	＜±3%(F.S)	0.1ppm	≤20 seconds
Phosphine (PH3)	0-5ppm	＜±3%(F.S)	0.001ppm	≤20 seconds
Phosphine (PH3)	0-25ppm	＜±3%(F.S)	0.01ppm	≤20 seconds
Phosphine (PH3)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Chlorine dioxide (CLO2)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Chlorine dioxide (CLO2)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Chlorine dioxide (CLO2)	0-200ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethylene oxide (ETO)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethylene oxide (ETO)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ethylene oxide (ETO)	0-100%LEL	＜±3%(F.S)	1%LEL	≤30 seconds
Phosgene (COCL2)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Phosgene (COCL2)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Silane (SiH4)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Silane (SiH4)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Fluorine (F2)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Fluorine (F2)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Fluorine (F2)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen fluoride (HF)	0-10ppm	＜±3%(F.S)	0.01ppm	≤20 seconds
Hydrogen fluoride (HF)	0-50ppm	＜±3%(F.S)	0.01ppm	≤20 seconds
Hydrogen bromide (HBr)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Diborane (B2H6)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Arsine (AsH3)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Arsine (AsH3)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Arsine (AsH3)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Germane (GeH4)	0-2ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Germane (GeH4)	0-20ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrazine (N2H4)	0-1ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Hydrazine (N2H4)	0-300ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Tetrahydrothiophene (THT)	0-100mg/m3	＜±3%(F.S)	0.01mg/m3	≤30 seconds
Bromine (Br2)	0-10ppm	＜±3%(F.S)	0.001ppm	≤30 seconds
Bromine (Br2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Bromine (Br2)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Acetylene (C2H2)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Acetylene (C2H2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Acetylene (C2H2)	0-1000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Ethylene (C2H4)	0-100%LEL	＜±3%(F.S)	0.1%LEL	≤30 seconds
Ethylene (C2H4)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethylene (C2H4)	0-2000ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Acetaldehyde (C2H4O)	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethanol (C2H6O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Ethanol (C2H6O)	0-2000ppm	＜±3%(F.S)	1ppm	≤60 seconds
Methanol (CH6O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Methanol (CH6O)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Carbon disulfide (CS2)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Carbon disulfide (CS2)	0-5000ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Acrylonitrile (C3H3N)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Acrylonitrile (C3H3N)	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Methylamine (CH5N)	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
I2	0-50ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Styrene (C8H8)	0-200ppm	＜±3%(F.S)	0.1ppm	≤30 seconds
Styrene (C8H8)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Vinyl chloride (C2H3CL)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Trichloroethylene (C2HCL3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Tetrachloroethylene (C2CL4)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Laughing gas (N2O)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Nitrogen trifluoride (NF3)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Hydrogen peroxide (H2O2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-30000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-200g/m3	＜±3%(F.S)	0.1g/m3	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-5000ppm	＜±3%(F.S)	1ppm	≤30 seconds
Sulfuryl fluoride (SO2F2)	0-10000ppm	＜±3%(F.S)	1ppm	≤30 seconds
C6H6	0-10ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
C6H6	0-100ppm	＜±3%(F.S)	0.01ppm	≤30 seconds
C6H6	0-2000ppm	＜±3%(F.S)	1ppm	≤30 seconds

Online Gas Detector is suitable for real-time and accurate detection of gas concentration and leakage in various environments. Fixed installation, suitable for 24-hour continuous online monitoring in various hazardous places. For example: electrolyte gas detection, NMP gas detection, hexafluoroacetone detection, hydrochloric acid gas detection, methane detection, etc.

Sino-Inst’s Online Gas Detector is widely used in petroleum, chemical, pharmaceutical, environmental protection, flue gas analysis, air treatment, tunnels and other occasions that require fixed installation and online detection of gas concentration.

If you need to perform gas concentration, gas leakage and other detections, please feel free to contact our sales engineer!