Fixed Multi Gas Detector for Industrial Gas Monitoring Systems
The Instrava fixed multi gas detector is designed for continuous monitoring of hazardous gases in industrial environments. Installed as part of a fixed gas detection system, the device provides stable and accurate measurement of combustible gases, toxic gases, and other industrial gases to ensure workplace safety and regulatory compliance.
Using advanced sensing technologies such as electrochemical sensors, thermal conductivity sensors, PID sensors, laser sensors, semiconductor sensors, and NDIR infrared sensors, the detector offers reliable performance with fast response times and high measurement accuracy.
With multiple output interfaces including 4–20mA analog output and RS485 digital communication, the detector can be easily integrated into industrial control systems such as PLC, DCS, and centralized gas monitoring platforms.
Designed with a durable aluminum alloy housing and industrial-grade components, the fixed multi gas detector is suitable for continuous operation in environments such as oil refineries, chemical plants, gas storage facilities, and manufacturing plants.
Gas Detectors Description
Industrial Applications of Fixed Multi Gas Detectors
The Instrava fixed multi gas detector is widely used in industrial environments where continuous gas monitoring is required.
Oil and Gas Facilities
Monitoring combustible and toxic gases around pipelines, compressors, and storage tanks.
Chemical Processing Plants
Ensuring safe operation during production processes involving hazardous gases.
Industrial Manufacturing
Detecting gas leaks or abnormal concentrations in production lines and processing equipment.
Gas Storage and Distribution
Continuous monitoring of gas levels in storage facilities and gas distribution stations.
Advanced Detection Technology
The fixed multi gas detection system supports multiple sensor technologies to meet different industrial gas monitoring requirements.
Supported detection principles include:
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Electrochemical sensors for toxic gases
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Thermal conductivity sensors for gas concentration monitoring
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PID sensors for VOC detection
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NDIR infrared sensors for stable gas measurement
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Semiconductor sensors for combustible gases
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Laser-based sensors for high precision applications
These technologies provide high accuracy (±3% F.S.), fast response times, and stable long-term performance.
Gas Detectors Parameter
| Parameter | Specification |
|---|---|
| Product Type | Fixed Multi Gas Detector |
| Power Supply | DC 24V |
| Measured Gas | Customizable depending on sensor |
| Detection Principle | EC / Thermal Conductivity / PID / Laser / Semiconductor / NDIR |
| Accuracy | ±3% F.S. |
| Repeatability | ±1% F.S. |
| Response Time | <20 s |
| Warm-up Time | 30 s |
| Working Current | ≤50 mA |
| Operating Temperature | -20°C ~ 50°C |
| Storage Temperature | -20°C ~ 50°C |
| Humidity | 10–95% RH (non-condensing) |
| Working Pressure | 86–106 kPa |
| Output Signal | 4–20 mA / RS485 |
| Switch Outputs | 4 channels |
| Housing Material | Aluminum alloy |
| Sensor Service Life | 1–3 years |
| Dimensions | 220 × 205 × 97 mm |
| Warranty | 1 year |
Instrava OEM/ODM
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
Finding the right product in a massive supply chain can be challenging. That is where we step in.
As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.
How We Customize to Fit Your Procurement Needs
For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.
For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.
For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.
Why Partner with Us for Custom Sourcing?
One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.
Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.
Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.
What is a fixed multi gas detector and how is it used?
A fixed multi gas detector is a permanently installed device that continuously monitors multiple gases in industrial environments. It is typically used in oil refineries, chemical plants, and manufacturing facilities to detect combustible gases, toxic gases, and oxygen levels. By connecting to PLCs, DCS, or alarm systems, it ensures automatic safety responses when gas concentrations exceed safe limits.
Which gases can a fixed multi gas detection system monitor?
Most fixed multi gas detectors can measure a combination of:
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Combustible gases (LEL)
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Toxic gases such as H₂S, CO
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Oxygen (O₂)
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Volatile organic compounds (VOCs) depending on sensor configuration
Customizable sensor modules allow operators to adapt the system to specific industrial requirements.
How accurate and reliable are fixed multi gas detectors?
High-quality industrial fixed gas detectors offer:
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Accuracy: ±3% F.S.
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Repeatability: ±1% F.S.
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Long-term drift: ≤±1% per year
Equipped with Honeywell or City imported sensors, these detectors provide stable and reliable performance even in harsh environments, ensuring accurate monitoring for critical safety applications.
Can a fixed multi gas detector be integrated into industrial control systems?
Yes. Modern fixed multi gas detection systems are designed for easy integration. They provide multiple signal outputs including:
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4–20mA analog outputs
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RS485 digital communication
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Switch outputs for alarms
This allows seamless integration with DCS, PLC, SCADA, and centralized monitoring platforms, enabling remote monitoring and real-time alerts.
What are the maintenance and lifespan considerations?
Most fixed multi gas detectors feature plug-and-play sensor replacement, which reduces downtime and simplifies maintenance. Typical sensor and detector service life ranges from 1 to 3 years, depending on environmental conditions and gas exposure. Regular calibration ensures long-term accuracy and compliance with safety standards.
What industries benefit most from fixed multi gas detectors?
Industries that require continuous gas monitoring for safety and compliance benefit from using fixed multi gas detectors:
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Oil & Gas: pipelines, storage tanks, and refineries
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Chemical Plants: production and storage areas
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Manufacturing: welding, painting, and assembly lines
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Mining and Confined Spaces: underground operations
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Power Generation: boiler rooms and fuel storage
Using a fixed multi gas detection system ensures worker safety, regulatory compliance, and early warning of hazardous gas leaks.
Why Trust Instrava?
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
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