Your Professional Assemble Rtds Supplier
Chongqing Duchin Instrument Co., Ltd. specializes in the research, development, manufacturing, and distribution of temperature sensors and related equipment. The company’s primary product offerings include thermocouples, resistance temperature detectors (RTDs), compensation cables, electric heaters, thermocouple vacuum calibration devices, and composite metal protective tubes. In addition, the company undertakes instrumentation and control system projects based on customer requirements.
Why Choose Us
Team & Service
Our team is a dynamic,Quickly respond to customer needs, experienced technical team, provide design and customization services.
Wide Range of Applications
Our products are widely used in FTTH (Fiber to the Home) and FTTA (Fiber to the Antenna) applications.
Our Certificates
We have established a quality assurance system compliant with ISO9001 standards. Our products are strictly tested according to IEC, GR-326-Core, GR-3120-Core, GR-771-Core, and GR-1221-Core standards to ensure superior performance and reliability.
Broad Market
Our products are exported to a wide range of Market layout in Asia, Europe, Middle east, North America, South America, Africa.Products are exported over 50 countries, and are widely recognized by customers.
Parameter
|
Power |
12~35VDC |
Output |
HART; 4~20mA |
|
Precision |
RTD 0.1% |
Current Limit |
20.8mA |
|
Excitation |
210uA |
Sensor |
RTD |
|
Load |
250Ω or 500Ω |
Stock Temperture |
-40~120 ℃ |
|
Drift |
≤25ppm. |
Shell Material |
PA66 |
|
Working Temperature |
-30~80℃ |
Mounting Screw |
M3.0*2 |
Video
Types of Assemble Rtds
The Assemble Rtds produced by our company mainly include the following types:
Explosion-Proof Digital Display RTD Thermometer
Industrial Explosion-proof Digital Display Temperature Sensor is a unified 4~20mA signal; It can be used in conjunction with microcomputer systems or other conventional instruments.
Anti-Corrosion Pt100 Rtd 316L Probe
Anti-corrosion platinum resistance adopts multi-layer (Anti-corrosion tube of the heat resistance coating protection for thick wall 316 l and wear-resistant anti-corrosion layer) structure, anti-corrosive effect and service life of verified by many domestic enterprises long-term use of the facts.
Pt100 Digital Thermometer
The pt100 digital thermometer uses a high-precision, low read-drift, ultra-low power integrated circuits and a wide seven-segment LCD. It is stable to various environments. The built-in lithium battery makes sure that it can work continuously for more than 6 months.
Advantages of Assemble Rtds
High Accuracy and Stability
Assemble Rtds are renowned for their exceptional accuracy in temperature measurement, making them a preferred choice in industries where precise control is paramount. The “Pt100” designation signifies a platinum resistance temperature detector with a standardized resistance of 100 ohms at 0°C, ensuring reliable and consistent readings.
Wide Temperature Range
These sensors excel in measuring a broad spectrum of temperatures accurately. Whether it’s cryogenic temperatures or high-temperature processes, Assemble Rtds operate reliably across diverse industrial environments, providing accurate data across the board.
Excellent Linearity
Assemble Rtds demonstrate excellent linearity over their temperature range. This means that the output signal corresponds accurately to the measured temperature, simplifying calibration processes and enhancing measurement precision.
Low Drift and Long-Term Stability
Compared to other temperature sensors like thermocouples, Assemble Rtds experience minimal drift over time. This characteristic ensures long-term stability and reliable performance, reducing the need for frequent recalibration and maintenance.
Resistance to Corrosion and Contamination
With platinum elements, Assemble Rtds boast inherent resistance to corrosion and contamination. This resilience allows them to maintain accuracy and functionality even in harsh industrial environments with chemicals, moisture, or particulate matter, ensuring consistent and reliable performance.
Compatibility with Modern Control Systems
These RTD sensors seamlessly integrate with modern control systems, data loggers, and automation equipment. This compatibility enables real-time monitoring and control, making them an efficient choice for industrial processes.
Aerospace: Monitoring temperatures in aircraft engines.
Automotive Industry: Employed for temperature measurement in engine cooling and exhaust systems.
Oil and Gas Industry: Used to monitor process temperatures in refineries and gas plants.
Chemical Industry: Critical for maintaining specific temperatures in chemical reactions.
Energy Sector: Monitoring temperatures in power plant generators and turbines.
Maritime Applications: Used in shipbuilding for engine monitoring and cargo temperature control.
Semiconductor Manufacturing: Essential for temperature control during production.
Research and Laboratories: Providing accurate temperature readings for scientific experiments.
Metal and Steel Industry: Monitoring furnace temperatures during metal fabrication.

Connection Method of Assemble Rtds
Two-wire Configuration
Two-wire RTD connections are the simplest and most economical way to connect an RTD sensor. However, they are also the least accurate because the resistance of the lead wires can interfere with the measurement. Three-wire RTD connections are more accurate than two-wire connections because they eliminate the lead wire resistance. The three-wire configuration works by using two wires to connect the RTD to the measuring instrument and a third wire to compensate for the lead wire resistance.
Four-wire Configuration
Four-wire RTD connections are the most accurate because they eliminate lead wire resistance completely. The four-wire configuration works by connecting the two RTD leads to one set of wires and the other two wires to the measuring instrument. The two wires connected to the RTD leads measure the RTD resistance, and the other two wires provide excitation voltage to the RTD.
Lead Wire Effects
One of the main issues with RTD sensors is the effect of lead wire resistance on accuracy. The lead wire resistance can cause measurement errors, especially in two-wire configurations. To minimize the lead wire effect, manufacturers often use high-quality materials for the lead wires and keep the wire length as short as possible. Another way to minimize the lead wire effect is to use three or four-wire configurations.
Ordering Process
1. Please tell us the model and quantity and other request you need.
2. We make the PI for you.
3. After you confirm the PI, we arrange the order for you after receiving your payment.
4. After the goods finished, we send the goods out to you and tell you the tracking number.
5. We will track your goods until you receive the goods.

Packaging and Shipping
|
Packaging |
All products, we will pack them carefully, items will be pakaged with PP bag, carton or any other protective stuff if necessarily, then placed in pallets or plywood case. |
|
Shipping |
We ship by Express, by air, by sea, by train. Normally we checked and compare, then provide customer the most proper shipment method. |
Our Factory
The establishment of Chongqing Duchin Instrument CO., LTD was marked in 1995, located at No. 290 Fengshixing Road, Beibei District, covers area over 11'000m2.




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FAQ
As one of the leading assemble rtds manufacturers in China, we warmly welcome you to buy assemble rtds made in China here from our factory. All customized products are with high quality and competitive price.







