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NEXI-GTYQ-MIC-300-O₂ Oxygen Transmitter,Factories, /hospitals/mines/tunnel,4-20mA, RS485

Brand: Nexisense

Model: GTYQ-MIC-300-O₂

Output: 4-20mA (3-wire), RS485, Relay (drycontact)

Power: 12–36V DC (standard: 24V, ≥1A)

IP Rating: IP65

Range: 0–10ppm, 0–100ppm (customizable)

Description: The Nexisense GTYQ-MIC-300-O₂ oxygen transmitter is professionally designed for oxygen concentration detection and alarm. It features a highly accurate electrochemical sensing principle and is suitable for oxygen gas monitoring in hazardous environments. Explosion-proof, lightning-proof, and anti-static safety features ensure stable operation. It supports multiple signal output methods, including 4-20mA and RS485, and is equipped with an audible and visual alarm and relay switching function, making it suitable for use in factories, hospitals, mines, and other locations. Customized services are available to meet various demanding requirements.

Products Description
Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter - Product Details

Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter Definition

The Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter is a professional gas detection device specifically designed for real-time monitoring of oxygen concentration in hazardous environments such as industrial plants, chemical facilities, tunnels,and mining operations. It provides timely alerts when oxygen levels exceed safety thresholds, ensuring personnel safety and environmental compliance.

Working Principle

This Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter  operates based on an electrochemical sensing principle. Oxygen molecules undergo electrochemical reactions inside the sensor, generating a current proportional to the gas concentration.The built-in processor converts the current signal into standard output formats. This method provides high accuracy, rapid response, and excellent long-term stability, making the device ideal for precision-critical applications.

Structural Analysis

The Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter is housed in a rugged, explosion-proof enclosure and supports wall-mounted, pipeline, orflange installation methods. The internal structure includes:

  • Electrochemical Sensor: Core component for oxygen measurement.

  • Signal Processing Module: Converts sensor data to standard output signals.

  • Alarm Module: Includes optional sound-light alarm andrelay outputs for threshold alerts.

  • Enclosure & Interface: IP65-rated casing with optional NPT or M20 cable connections.

The enclosure offers protection against dust and water, ensuring stable operation in challenging industrialenvironments.

Measurement Methods

Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter  provides versatile sampling methods to meet diverse application needs:

  • Diffusion Sampling: Passive air exposure for open-area measurement.

  • Pipeline Sampling: Sample gas is drawn from a pipeline for detection.

  • Flow-throughSampling: Gas flows through the sensor for continuous monitoring.

  • Pump-suction Sampling: Integrated pump draws gas from remotepoints for detection.

Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter Technical Specifications

SpecificationDetails
Target GasOxygen(O₂)
Detection PrincipleElectrochemical
Detection Range0–10ppm, 0–100ppm (customizable)
Resolution1ppm, 0.01%Vol, 0.001%Vol (optional)
Sampling MethodDiffusion, Pipeline, Flow-through, Pump-suction
InstallationWall-mounted, Pipeline, or Flange
Accuracy≤ ±3% (Full Scale)
Response TimeT90 ≤ 15 seconds
Output Signals4-20mA (3-wire), RS485, Relay (drycontact)
Alarm TypeSound-light alarm (optional), 1–2 relay outputs
Operating Voltage12–36V DC (standard: 24V, ≥1A)
Operating Temp-40℃to +70℃ (higher with pre-treatment module)
Humidity Range≤95% RH (non-condensing)
Explosion-proof RatingExdⅡCT6
Sensor Lifespan2 years (optional 6 years)
Protection GradeIP65
Dimensions200×180×60mm or 200×230×60mm (with alarm)
WeightApprox. 1.2 kg

Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter Conclusion

The Nexisense GTYQ-MIC-300-O₂ Oxygen Transmitter delivers reliable, real-timemonitoring of oxygen concentrations in demanding environments. Its explosion-proof construction, high detectionaccuracy,versatile outputformats,and optionalalarm modules make it an ideal choice for industries that prioritize safety and compliance.With support for customization and robust environmental tolerance, itstands out as a critical component in modern industrial safety systems.

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