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Ammonia NH3 Gas Detector Sensor Leak Detection 10000 ppm Toxic Gas Electrochemical Miniature
Gas Module IntroductionFAD gas module with two/three wire TTL/0-20mA/RS485 output, integrates toxic gas sensor + transmitter board. Adopting imported advanced electrochemical gas sensors, it has features of high accuracy, long lifetime, high stability and high anti-interference. The module is design......
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Product Description
Gas Module Introduction
FAD gas module with two/three wire TTL/0-20mA/RS485 output, integrates toxic gas sensor + transmitter board. Adopting imported advanced electrochemical gas sensors, it has features of high accuracy, long lifetime, high stability and high anti-interference. The module is designed to prevent circuit reversed connection, high voltage, high current and lightning
Sensor Performance Characteristics
Sensor Physical Characteristics
Sensor Cross-sensitivity Data
3) Long term exposures and high concentrations may affect the performance characteristics
Performance data conditions: 20 °C, 50% RH, 1013 mbar
Module Parameters
Module applications
Petroleum, petrochemical, metallurgy, chemical, electricity, telecom, gas, mining, pharmacy, municipal wastewater treatment, indoor environment, atmospheric environmental protection, transit equipment, transportation facilities, tunnel safety and underground parking, leak detection, safety and environmental control
FAD gas module with two/three wire TTL/0-20mA/RS485 output, integrates toxic gas sensor + transmitter board. Adopting imported advanced electrochemical gas sensors, it has features of high accuracy, long lifetime, high stability and high anti-interference. The module is designed to prevent circuit reversed connection, high voltage, high current and lightning
Gas Module Feature
- Long lifetime imported advanced electrochemical sensors- High accuracy op ams, power supply IC, stable and sensitive
- Detect low or high concentration toxic gases precisely
- High anti-interference ability
- Over range protection, reversed polarity protection and lightning protection
- Low power consumption with a standard 4-20mA two/three-wire signal output
- Interface: pump, diffusing, flange, flange thread types
- 12-36VDC operating voltage
Sensor Performance Characteristics
| Nominal Range | 0 - 10000 ppm |
| Maximum Overload | ND |
| Expected Operation Life | 2 years in air |
| Output Signal | 2.5 ± 0.6 nA/ppm |
| Resolution | 40 ppm |
| Temperature Range | - 10 °C to 50 °C |
| Pressure Range | Atmospheric 1) |
| Pressure Coefficient | No data |
| T90 Response Time | < 35 sec |
| Relative Humidity Range | 15 % to 90 % R.H. non-condensing |
| Baseline | -160 ppm to 160 ppm |
| Maximum Zero Shift (+20°C to +40°C) | ND |
| Long Term Output Drift | < 5 % signal loss per 6 months |
| Recommended Load Resistor | 10-20 Ohm |
| Bias Voltage | Not allowed |
| Repeatability | < 3 % of signal |
| Output Linearity | < 5 % full scale |
| Humidity Effect | < 180 ppm |
Sensor Physical Characteristics
| Weight | ~ 5.4 g |
| Position Sensitivity | None |
| Storage Life | Six months in container |
| Recommended Storage Temperature | 5 °C - 20 °C |
| Warranty Period | 12 months from date of dispatch |
Sensor Cross-sensitivity Data
| Interfering Gas | Concentration(ppm) | Reading(ppm) |
| CO | 300 | 0 |
| H2 | 200 | 0 |
| SO2 3) | 20 | -7 |
| H2S 3) | 20 | 7 |
| NO 3) | 20 | -1 |
| NO2 3) | 20 | -20 |
| Cl2 | 20 | -55 |
| CO2 | 2% | 0 |
Performance data conditions: 20 °C, 50% RH, 1013 mbar
Module Parameters
| Module type | GM-I2(3)-M/C/S-**-****/G/P/F/FL |
| Detected gas | Toxic gas |
| Detecting principle | Electrochemistry |
| Sampling | Diffusing pump flange thread |
| Responding time | 30s~40s(of the sensor) |
| Module accuracy | ≤±3%FS(actual concentration, higher accuracy depends on specified sensors) |
| Module repeatability | ≤±2% FS |
| Module linear error | ≤±2% FS |
| Module zero temperature drift | ≤±2% (FS/year) |
| Module operating temperature | -40~80°C |
| Module humidity | 0-95%RH(non-condensation) |
| Sensor operating temperature | -20°C~50°C |
| Sensor humidity | 0-90%RH(non-condensation) |
| Signal output | TTL/4-20mA /RS485 (two or three wire) |
| Transmitting distance | 1000 meters(RS485) |
| Operating voltage | DC 12-36V |
| Maximum power | ≤0.8W |
| Size | 80*48mm |
| Explosion proof | Intrinsic safe |
| Connection cable | RVVP3 x 1.5mm² |
Module applications
Petroleum, petrochemical, metallurgy, chemical, electricity, telecom, gas, mining, pharmacy, municipal wastewater treatment, indoor environment, atmospheric environmental protection, transit equipment, transportation facilities, tunnel safety and underground parking, leak detection, safety and environmental control
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