I. Core Parameters

II. Product Features

Excellent Explosion-Proof Safety Performance: Supports dual explosion-proof designs of flameproof type and intrinsically safe type, with the highest explosion-proof grade reaching dIICT6/iaIICT6. It can operate safely in hazardous environments containing explosive substances such as carbon and chlorine, eliminating potential safety hazards.

Convenient and Efficient Integrated Design: Integrates RTD core, temperature transmitter module and digital display function into one. It directly outputs standard 4~20mA signals without additional transmitters, simplifying the system integration process and reducing equipment procurement and installation costs.

Superior Temperature Measurement Accuracy and Display Performance: The transmitter accuracy is as high as Class 0.1, and the digital display accuracy is Class 0.5, ensuring accurate data measurement. It also supports analog indication and digital display, enabling intuitive on-site reading and adapting to different observation habits.

Strong Protection Adaptability: With a protection grade of IP65, it is waterproof and dustproof, and can resist harsh conditions such as humidity and dust in industrial sites. The 2-wire system wiring design has high tolerance for transmission lead resistance, ensuring stable signal transmission.

Wide Compatibility: The standard signal output can be seamlessly connected with microcomputer systems and conventional industrial instruments, adapting to various control systems such as PLC and DCS, without additional adaptation components, providing high integration flexibility.

Diverse Installation Scenarios: Supports customized installation methods with a compact structure and small space occupation, which can accurately match the installation needs of different equipment such as chemical reactors, pipelines and storage tanks.

III. Application Scenarios

With the core advantages of explosion-proof, integration and precision, this product is widely used in industrial temperature measurement scenarios with explosive risks, mainly including:

Petrochemical Industry: Temperature monitoring of equipment such as reactors, storage tanks and pipelines in refineries and chemical plants. It adapts to the production environment containing flammable and explosive media, ensuring process safety and stability.

Pharmaceutical and Chemical Field: Temperature control in scenarios such as pharmaceutical intermediate synthesis and chemical raw material storage. While meeting explosion-proof requirements, it ensures temperature measurement accuracy and product quality.

Coal and Natural Gas Industry: Temperature monitoring of underground ventilation equipment in coal mines and natural gas transmission pipelines. The intrinsically safe design adapts to high-risk environments such as underground mines, eliminating safety accidents caused by sparks.

Power Energy Industry: Temperature monitoring of fuel storage and transmission systems in thermal power plants and nuclear power equipment. The flameproof design adapts to high-temperature, high-pressure, flammable and explosive working environments.

Metallurgy and Machinery Manufacturing: Temperature measurement of fuel storage tanks in metallurgical workshops and flammable and explosive reagent storage equipment in mechanical processing. It realizes safe and accurate temperature measurement in harsh industrial environments.

Warehousing and Transportation Industry: Temperature monitoring of flammable and explosive chemical storage warehouses and transportation vehicles. It feeds back temperature data in real time to prevent safety risks caused by abnormal temperature.

IV.  Frequently Asked Questions (FAQs)

1. How to choose between flameproof type and intrinsically safe type?

Answer: The flameproof type is suitable for scenarios with medium risk level where equipment operation may generate sparks (such as around chemical reactors), and blocks explosion propagation through the flameproof shell; the intrinsically safe type is suitable for high-risk environments (such as underground coal mines), and its circuit design ensures no sufficient energy to cause explosions, which needs to be used with safety barriers. The selection should be determined according to the on-site hazardous environment level and equipment operation conditions.

2. What is the recommended calibration cycle for the product?

Answer: Annual calibration is recommended. When used for a long time under high temperature (above 300℃), high humidity or frequent start-stop working conditions, the calibration cycle should be shortened to 6 months to ensure the coordinated accuracy of the transmitter and RTD, and avoid increased errors due to component aging.

3. What are the precautions for 2-wire system wiring?

Answer: During wiring, ensure the positive and negative poles are connected correctly to avoid equipment damage caused by reverse connection; the transmission lead resistance should be controlled within 100Ω, and exceeding the range may affect the signal transmission accuracy; the lead wire should use shielded wires and be kept away from strong electromagnetic interference sources to prevent signal interference.

4. How to troubleshoot abnormal display of the product?

Answer: First, check whether the power supply voltage is within the range of 24VDC±10%; second, confirm whether the wiring is firm and whether the positive and negative poles are reversed; if it is still abnormal, check whether the insulation resistance meets the standard and troubleshoot whether there is a short circuit caused by humidity; finally, contact the manufacturer to check whether the transmitter module or RTD core is faulty.

5. Can the explosion-proof shell be disassembled by yourself?

Answer: It is strictly forbidden to disassemble the explosion-proof shell in explosive environments! If maintenance is required in non-hazardous environments, the power supply must be cut off first and operated by professional personnel; after disassembly, check whether the flameproof surface is intact without scratches or rust. During installation, ensure the sealing ring is in place and the shell is tightened, otherwise the explosion-proof performance will be lost.

6. Does the product support customization of special output signals or installation methods?

Answer: Yes. It can be customized with voltage output signals such as 0~5V and 1~5V according to customer needs; the installation method can be customized with thread specifications, flange sizes, etc., according to the equipment interface, to ensure accurate adaptation to on-site equipment. Specific customization requirements can be communicated with the manufacturer.

Manual Welding

Automatic Welding

Insulation Testing

Laser Marking

Warehouse Managing

Thermocouple Assemble

Vacuum Leak Detection

Surface Polishing

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