Explosion-Proof Multi Point Resistance Temperature Detector (RTD) Sensors

I. Core Parameters

II. Product Features

Explosion-Proof Design: Adopts a robust explosion-proof head structure, which can contain potential internal explosions and prevent ignition of the surrounding explosive atmosphere. It complies with strict international explosion-proof standards for example, IECEx (International),and is suitable for hazardous areas of Zone 1 and Zone 2 where flammable gases, vapors or dust exist.

Multi-Point Temperature Sensing: Unlike single-point sensors, multi-point RTD sensors can measure temperatures at multiple locations simultaneously, enabling comprehensive monitoring of large equipment, pipelines or storage tanks. By providing multiple temperature readings, operators can detect temperature gradients, hot spots or abnormal temperature changes, which is crucial for early fault detection and process optimization. For example, in long-distance oil pipelines, multi-point sensors can identify pipe sections with excessive heat loss or temperature changes caused by blockages.

High Precision and Accuracy: The sensor uses high-quality RTD elements (usually platinum, with Pt100 being a common type) and has excellent precision and accuracy in temperature measurement. Within the wide temperature range of -200°C to 600°C, some special models can even measure higher temperatures, and their measurement accuracy can reach ±0.1°C to ±0.3°C. This level of precision ensures that the obtained temperature data can provide reliable support for critical process control and safety monitoring applications.

Durability and Reliability: To adapt to the harsh working conditions in the oil and gas industry, the sensor is made of durable materials such as stainless steel, which can resist corrosion from oil, gas, moisture and chemical substances. At the same time, its design can withstand mechanical vibrations, impacts and extreme temperature fluctuations commonly found in oil drilling platforms, refineries and other oil and gas facilities. The sensor has a long service life and low maintenance requirements, making it a cost-effective solution for continuous temperature monitoring.

Flexible Installation: The explosion-proof head multi-point RTD sensor provides a variety of installation methods to adapt to different application scenarios. It can be directly installed on process vessels, pipelines or storage tanks through threaded, flange or welded connections. The sensor cable is also optimally designed for easy routing and connection to control systems, enabling seamless integration into existing monitoring and automation systems.

III. Related Component Specifications

Flameproof RTD Model: WZP-24a/44a-B (where "a" represents the protective tube diameter, which can be 0 or 1)

Product Implementation Standards: GB/T 26786-2011, GB/T 3836.1-2021, GB/T 3836.2-2021

Cable Entry Device: Users need to provide clamping measures by themselves to prevent the cable from being pulled or twisted.

Flameproof Joint Surface: For maintenance, the product manufacturer must be contacted.

IV. Application Scenarios

Oil and Gas Production: Used to monitor the temperature of downhole equipment, wellheads and oil pipelines in oil wells and gas fields. By continuously measuring temperatures at multiple points, operators can detect problems such as wax deposition, natural gas hydrate formation or equipment overheating-these issues may interfere with production and pose safety risks. At the same time, the sensor can also help optimize the extraction process and ensure that the temperature conditions are conducive to the efficient flow and separation of fluids.

Refining and Petrochemical Processes: In refineries and petrochemical plants, multi-point RTD sensors play a key role in monitoring the temperature of reactors, distillation towers, heat exchangers and storage tanks. Temperature control is crucial in these processes, as it not only ensures the normal progress of chemical reactions and prevents product degradation, but also avoids safety hazards such as uncontrolled reactions or explosions. Its multi-point temperature measurement capability allows operators to maintain a uniform temperature distribution and adjust process parameters in a timely manner.

V. Product Advantages

High Safety: The explosion-proof design complies with strict international standards, enabling stable operation in flammable and explosive hazardous environments and reducing the risk of safety accidents.

Comprehensive Monitoring: The multi-point sensing feature can obtain temperature data from multiple locations, realizing all-round temperature monitoring of equipment and processes, which is beneficial for early fault detection.

Reliable Data: High-precision temperature measurement ensures accurate data, providing strong support for process optimization and safety decision-making.

Strong Adaptability: The characteristics of corrosion resistance, vibration resistance and impact resistance enable it to adapt to the harsh working conditions of the oil and gas industry, reducing equipment failures and replacement frequency.

Convenient Integration: The flexible installation and cable design can be quickly integrated with existing control systems, reducing installation and commissioning costs.

VI. Frequently Asked Questions (FAQs)

Will the installation method affect the explosion-proof performance of the sensor?
The explosion-proof design of the sensor itself complies with international standards. However, during installation, strict compliance with the standard operating procedures for threaded, flange or welded connections is required. Improper installation leading to seal failure may affect the explosion-proof performance. It is recommended that installation be carried out by professional personnel, and the tightness of the connection parts should be ensured.

How to choose different types of RTD elements (such as Pt100, Cu50)?
Platinum RTDs such as Pt100 have high precision and a wide measurement range, making them suitable for oil and gas process scenarios with strict temperature measurement requirements. Copper RTDs such as Cu50 have lower costs but relatively limited measurement range and precision, and are more suitable for auxiliary monitoring scenarios with low precision requirements and narrow temperature ranges. The selection can be made based on actual measurement needs and budget.

What to do if the sensor has excessive measurement errors?
First, check whether the sensor's installation position is affected by environmental interference, such as being close to heat sources or cold sources. Second, verify whether the RTD element is damaged or aged. In addition, loose wiring or electromagnetic interference on the cable may also cause errors. These factors can be checked one by one. If the problem cannot be solved, the manufacturer should be contacted for professional testing and maintenance.

Can the flameproof joint surface be repaired by yourself if it is damaged?
No. For the repair of the flameproof joint surface, the product manufacturer must be contacted. Self-repair may damage its explosion-proof structure, causing the sensor to lose its explosion-proof performance and triggering safety accidents in hazardous environments.

 

 

 

Manual Welding

Automatic Welding

Insulation Testing

Laser Marking

Warehouse Managing

Thermocouple Assemble

Vacuum Leak Detection

Surface Polishing

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