Excellent supplier nitrogen gas detector for sale. Working range 0 to 100% Vol, remote control with 4-20mA/ RS485 output signal, supports sound and light alarm. Fixed N2 gas detector for nitrogen concentration detecting and leak monitor, high quality, low price.
Features
- Nitrogen gas detector adopts high precision sensor for accurate gas leak detection.
- Nitrogen gas detector is equipped with 3-wire system 4-20mA analog output, relay output, RS485 output (optional).
- The N2 gas detector is compatible with various controlled alarms, PLC, DCS and other control system, and can be remote monitored.
- Explosion-proof design, fast, relaible and stable.
- Infrared ray controller can remote control the alarm point settings, zero calibration, and address modification.
- Two-stage alarm with sound and light, and the alarm point is settable.
- The nitrogen gas detector has self-calibration function, and three standard keys will be used to realize on-site maintenance.
- The N2 gas detector can output one or two on-off signals, can drive ventilator, solenoid valve or other external devices.
Specification
Model | CHN-GAS-N2-A |
Detection Principle | Electrochemistry |
Gas | Nitrogen (N2) |
Range | 0-100% Vol |
Resolution | 0.01% Vol |
Accuracy | ≤±3% F.S. |
Responce Time | ≤10s |
Repeatability | ≤±1% |
Recovery Time | ≤10s |
Linearity Error | ≤±1% |
Zero Shift | ≤±1% (F.S./year) |
Signal Output (Optional) Note | 4-20mA, or RS485 (transfer card included); Relay output: one group of relay output (1NO+1NC, 24V 100mA) for one alarm (default), or two groups of relay output (2NO+2NC, 24V 100mA) for high/low alarm (optional). |
Alarms | Sound, light |
Display | High light nixie tube display |
Installation | Wall-mounted, piping type, flow-type (according to the detected environment) |
Connection | G1/2 male thread explosion-proof flexible pipe |
Operating Time | 24h |
Explosion-proof Grade | Ex d llC T6 |
Protection Grade | IP65 |
Certification | CE, ATEX |
Working Voltage | 12~36V DC |
Case Material | Die-casting aluminum housing |
Operating Temperature | -20℃~50℃ |
Operating Humidity | 0~95%RH (non-condensing) |
Dimension | 206*179*90mm |
Weight | ≤1.6kg |
Accessories | Power adapter: Input 100-240VAC 50/60Hz, Output 24VDC 2A (Optional USA plug & Europe plug) |
Note: The output signal 4-20mA and RS485 CANNOT be used at the same time.
Fixed Nitrogen (N2) Gas Detector Dimension (Unit: mm)

***Other Common Gases and Ranges Available for Fixed Gas Detectors
Gas | Range (Default) | Range (Optional) | Resolution |
Combustible Gas (EX) | 0-100% LEL | 0-100% LEL | 1%LEL |
Oxygen (O2) | 0-30% Vol | 0-25% Vol | 0.01%Vol |
Carbon Monoxide (CO) | 0-1000 ppm | 0-100/500/1000/2000 ppm | 0.01ppm/0.1ppm/1ppm |
Hydrogen Sulfide (H2S) | 0-100 ppm | 0-50/100/500/1000 ppm | 0.01ppm/0.1ppm/1ppm |
Methane (CH4) | 0-100% LEL | 0-100% LEL | 1%LEL |
Chlorine (Cl2) | 0-10 ppm | 0-10/20/50/100 ppm | 0.01ppm/0.1ppm |
Hydrogen Chloride (HCL) | 0-20 ppm | 0-10/20/50/100 ppm | 0.01ppm |
Hydrogen (H2) | 0-1000 ppm | 0-1000/2000/5000/10000 ppm | 0.1ppm/1ppm |
Nitric Oxide (NO) | 0-100 ppm | 0-100/250/500/1000 ppm | 0.01ppm/0.1ppm/1ppm |
Nitrogen Dioxide (NO2) | 0-20 ppm | 0-20/50/100 ppm | 0.01ppm/0.1ppm/1ppm |
Formaldehyde (CH2O) | 0-10 ppm | 0-10/20/-50/100 ppm | 0.01ppm/0.1ppm/1ppm |
Ozone (O3) | 0-10 ppm | 0-1/5/10/20/50/100 ppm | 0.001ppm/0.01ppm/0.1ppm |
Carbon Dioxide (CO2) | 0-2000 ppm | 0-1000/2000/5000/10000/50000 ppm | 0.1ppm/1ppm |
Sulfur Dioxide (SO2) | 0-20 ppm | 0-10/20/100 ppm | 0.01ppm/0.1ppm |
Ethylene Oxide (ETO) | 0-100 ppm | 0-20/50/100/500/1000 ppm | 0.01ppm/0.1ppm/1ppm |
Phosphine (PH3) | 0-10 ppm | 0-10/20/50/100/200/500/1000 ppm | 0.01ppm/0.1ppm/1ppm |
Nitrogen (N2) | 0-100% Vol | 0-100% Vol | 0.01%Vol |
Hydrogen Fluoride (HF) | 0-10 ppm | 0-50 ppm | 0.01ppm |
Note: Some common gases and the measuring ranges are listed in the above table. For more information, please feel free to contact us.
Tips: Maintenance of nitrogen gas detector.
- Regularly calibrate, test and inspect the nitrogen gas detector. In general, the calibration frequency is once a year.
- As the most important part of nitrogen gas detector, the sensor should avoid exposure to the gas generated by inorganic solvents or organic solvents as much as possible. Especially for electrochemical sensors used to detect toxic and harmful gases, the evaporation or contamination of the electrolyte will cause the signal of the sensor to drop and shorten the service life of the N2 gas detector.
- When installing the nitrogen gas detector, please do not put it close to the wall, and reserve enough space around it for daily maintenance and troubleshooting.
- Ensure that the nitrogen gas detector is in a dry state to avoid affecting its detection accuracy and service life due to the humid environment.
- The entire outside of the nitrogen gas detector needs to be kept clean. You can wipe the surface with a soft damp cloth. Do not use a damp cloth dripping with water to prevent water droplets from accidentally splashing into the N2 gas detector.
- Dust cover of the sensor is for protection. In order to prevent the dust cover from being blocked by dust and affecting the use of sensor, it should be cleaned regularly.
Buy nitrogen gas detector from high-quality manufacturer at good price. Measuring range 0-100% Vol, supports remote control, optional output signal 4-20mA or RS485, high accuracy 3% F.S, fast response within 10s. N2 gas detector for nitrogen concentration detecting and leak monitor, sound and light alarm, 24h online, real-time display, fixed mounting.