Your Professional Other Instruments 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
|
Test accuracy |
0.1 °C & 0.1 °F |
|
Temperature range |
-50 ~ 1300 °C (-58 ~ 2372 °F) |
|
Accuracy |
±0.1 °C ± 0.4 |
|
Working temperature |
0 ~ 40 °C (32 ~ 104 °F) |
|
Working humidity |
0 ~ 70 % (R.H.) |
|
Current |
One K-type: approx DC 2.8mA( typical) / Two K-type: approx. DC 3mA(typical) |
|
Unit |
°C or °F |
|
Reading frequency |
2.5 times per second |
|
Size |
16*7.8*4.2 cm |
Types of Other Instruments
The other instruments produced by our company mainly include the following types:
Surface Temperature Thermometer
Surface thermocouple is used to measure static surface temperature of industries related to forging, hot pressing, partial heat,electrical crankshaft tile,plastic injecting machine,metalic quenching, mould processing ranging 0~800°C which is portable, intuitivism, fast response, cheaper cost.
PID Temperature Controller Instrument
XM series PID Temperature Controller instrument is a secondary instrument connected to on-site testing instruments such as thermocouples, rtd, and pressure transmitters. It is used to display measurement signals of on-site testing instruments, such as temperature, pressure, liquid level, flow, weight, etc. parameters about industrial processes.
Paperless Temperature Data Logger
A paperless temperature data logger is an electronic device that automatically monitors, records, and stores temperature data over time, eliminating the need for traditional paper charts. It uses sensors to capture temperature readings and a processor to store this information digitally, allowing for easy transfer and analysis on a computer.

Advantages of Other Instruments
Surface Temperature Thermometer
Surface Temperature Thermometers have many advantages, including:
● They Measure from a Distance- One key advantage of surface temperature thermometers over other varieties is that they allow you to measure temperature from a distance, without the thermometer having to be in contact with the things it’s measuring. This is useful for any situation in which you can’t touch the target, whether it’s to avoid contaminating it or because the surface is too hot to safely approach.
● They Can Measure Moving Systems- Because surface temperature thermometers can read temperature from a distance, they also have the advantage of being able to take readings on systems while they are in motion. All moving parts generate heat, and it’s important to know whether the system is running too hot or not.
● They Can Store Data – A third advantage of surface temperature thermometers is that most have at least some digital memory, allowing you to store data on past readings and refer back to it later. Many also offer additional functions for added utility.
PID Temperature Controller Instrument
PID Temperature Controller Instruments have many advantages, including:
● Process consistency – The ability to maintain the same temperature over time is a crucial benefit of PID temperature controller instruments. The controller will take initial measurements and then use these to determine the rate of change in the temperature of the process. Once the controller has calculated and determined the rate of change, it will calculate the amount of corrective action needed to bring the temperature back to the desired set point and adjust the output of the process.
● High accuracy – A PID temperature controller instrument is more accurate than a thermostat because it considers all three variables that affect temperature. It can achieve an accuracy of 0.1% for temperature and 0.01% for flow. This level of accuracy means that the controller does not need recalibration frequently, if at all. A PID temperature controller instrument does not rely on a single reading, as many other controllers do. Instead, it takes many readings to get an average, which results in greater accuracy.
● Minimum maintenance – PID temperature controller instruments will not need to be replaced or fixed as often as other controllers. Regular cleaning and inspection will reduce maintenance costs, making them a better investment.
Paperless Temperature Data Logger
Paperless Temperature Data Loggers have many advantages, including:
● The paperless temperature data logger has no mechanical moving parts and requires less maintenance during use.
● The data of the paperless temperature data logger is recorded in the electronic chip. And the data is displayed and read through the liquid crystal display screen, so there are no maintenance problems.
● The paperless temperature data logger data can be transferred to a computer for further data preservation and analysis.
● Paperless temperature data loggers have large-capacity, long-term data recording capabilities. Due to the development of new memory chip technology, large-capacity memory chips are getting smaller in size, and their capacities are also getting larger and larger.

Applications Of PID Temperature Controller Instrument (Other Instruments)
Temperature-Critical Drying And Evaporation Processes
These controllers are crucial in processes where maintaining specific temperatures is essential for effective drying and evaporation, such as in food processing and chemical production.
Medical Sciences And Pharmaceutical Development
PID temperature controller instruments are vital in laboratories and pharmaceutical manufacturing, where exact temperature control is necessary for experiments and drug production.
Furnace and Batch Temperature Control
PID temperature controller instruments ensure precise temperature regulation in industrial furnaces, enhancing product quality and process efficiency.
Heat Treatment and Tempering
In metallurgy, PID temperature controller instruments manage heat treatment processes, ensuring that metals achieve desired hardness and durability through precise temperature control.
Curing and Conditioning of Materials
In manufacturing, PID temperature controller instruments regulate temperatures during the curing processes of materials, ensuring optimal properties and performance.
Food Production and Preparation
In the food industry, maintaining consistent temperatures is critical for safety and quality, making PID temperature controller instruments indispensable in cooking, pasteurization, and refrigeration processes.
Ordering Process
Send your detailed request→Feedback with quotation→Confirm price and some details →Provide PI→ Make payment→Start production→Quality checking→Delivery→After service.
Packaging and Shipping
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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. |
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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.




Certifications








FAQ
Other Instruments - Chongqing Duchin Instrument Co.,Ltd
Paperless Temperature Data Logger




