Temperature Instrument

Your Professional Temperature Instrument 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

Company Certification

The company has passed IS0 9001 Quality Management System, ISO 14001 Environmental Management System, ISO 45001 Occupational Health And Safety Management System, National Explosion-proof Product, Intellectual Property Management System, Credit Enterprise Of Grade AAA, EU CE(Consumer Electronics), RoHS(Restriction of Hazardous Substances), and SIL(Safety Integrity Level) Functional Safety certification.

Advanced Manufacturing Process

Through the development of our patented products 'Single-core MIMS Thermocouple' and 'High-diameter Thick-wall MIMS Thermocouple', our team has invented the 'Merit Matching' method and adopted 'Hot Rolling' technics for MIMS thermocouples' manufacturing. These have further improved general thermocouple products' architecture systems and manufacturing methods and pushed the industry's technology forward.

High Quality Products

Duchin not only has extensive product line and support to help our customers improve the quality of their products, but also with stable materials resources to ensure favorable prices with high quality.

 

Professional Team

Duchin is working on process improvement, hiring the right employees and putting them through a series of training stages properly, and keying on communicating customer’s needs to ensure its goal of a 100% Quality Rating and Satisfaction is not missed out.

 

Parameter

 

Grade

1.0% or 1.5%

Dial diameter

100mm

Scale

0~400℃

Connection

M27X2 movable thread

Type

Adjusatable type

Probe size

Specify OD and immersion length

Structure

With rtd sensor

 

Video

 

 

Types of Temperature Instrument
 

The temperature instruments produced by our company mainly include the following types:

Bimetallic Thermometer

A bimetallic thermometer always consists of two different jointed metal strips that have a different thermal expansion coefficient, the jointed strip is called the thermal bimetallic strip.

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.

Paperless Temperature Data Logger

Paperless temperature data logger is an electronic device that automatically monitors, records, and stores temperature data over a period of time without using paper.

 

Advantages of Temperature Instrument

Improved Equipment Performance and Efficiency

Equipment and machinery function best when kept in an ideal environment, and temperature monitoring is vital. Technicians can prevent performance issues before they occur by monitoring the temperature to see if it strays outside the acceptable range. Overheating and underheating can both significant harm machinery, necessitating costly repairs.

Reduce the Risk of Downtime and Equipment Failure

Businesses may incur significant losses due to equipment breakdowns and subsequent downtime. Production delays, decreased output, and higher maintenance expenses are all possible outcomes of machine breakdowns. The monitoring of temperatures can assist in avoiding costly equipment failure by revealing any temperature fluctuations that may suggest a problem.

Bimetal Thermometer With Switch Contacts
Bimetal Thermometer Types

Better Quality Products

It is essential to monitor temperatures in the pharmaceutical, food, beverage, and chemical manufacturing industries to ensure the highest quality of finished goods. These sectors must operate within strictly regulated temperature limits to maintain product quality and safety. There is a correlation between temperature and product degradation, contamination, and shorter shelf life.

Improved Safety

Extreme heat in the workplace can endanger workers in several ways. Heat-related ailments, such as heat exhaustion and heat stroke, can be avoided with proper temperature monitoring in the workplace. Overheating machinery is another potential threat that can be spotted by monitoring temperatures and corrected by specialists before a fire eruption.

 

Applications of Temperature Instrument

 

 

Industrial Processes
In industries, preserving unique temperatures is essential for ensuring the quality of products and the safety of approaches. temperature instruments are used in commercial settings for tracking and controlling temperatures in equipment such as furnaces, boilers, and reactors. They help prevent gadget malfunctions, optimize electricity usage, and ensure product consistency.

 

Food Safety in Restaurants
Temperature instruments play a essential function in ensuring meals safety through tracking temperatures during food processing, storage, and transportation. In restaurants, kitchens, and meals production facilities, temperature instruments are used to test the inner temperature of food items, ensuring they're cooked very well to kill dangerous bacteria.

 

Environmental Monitoring
Temperature instruments are critical tools for monitoring environmental situations and climate exchange. Weather stations utilize temperature instruments to degree air temperature, that's vital for weather forecasting, agriculture, and climate studies. In addition to air temperature, temperature instruments are used to measure water temperature in oceans, lakes, and rivers, offering valuable facts for ecological studies and environmental conservation efforts.

 

HVAC Systems
Heating, ventilation, and air con (HVAC) systems depend upon temperature instruments for regulating indoor temperatures and maintaining thermal consolation. Thermostats, which incorporate temperature sensors, manage HVAC systems to make sure superior heating and cooling conditions in residential, business, and commercial buildings.

 

Home and Consumer Products
Temperature instruments are commonly used in households for everyday applications, such as monitoring indoor and outdoor temperatures, controlling heating and cooling systems, and checking water temperature for bathing and swimming. They are also found in consumer products like ovens, refrigerators, and thermostats.

 

Temperature Instrument Installation Guide

 

Power-Off Installation
Always install temperature instruments with the power supply turned off to avoid electrical hazards or device damage.

 
 

Material Compatibility
Ensure that the media being measured is compatible with the sensor’s wetted materials to prevent corrosion or chemical degradation.

 
 

Protection Against Surges and Lightning
In harsh industrial environments where the sensor may be exposed to surges or lightning, it is recommended to install surge protection devices between the sensor and the power distribution system.

 
 

Sensor Insertion Depth and Orientation
● For horizontal or side-mounted pipelines, the insertion depth of the probe should be at least half the pipe diameter.
● In bent pipe installations, the protective sleeve should align with the flow direction, and the probe must also reach at least half the pipe’s inner diameter.
● For top-mounted installations on tanks or vessels, ensure the sensor is inserted deep enough to avoid errors caused by temperature stratification.

 

 

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.

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Packaging and Shipping

 

Packaging

Standard export carton packaging

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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Certifications

 

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FAQ

 

Q: What is a temperature instrument?

A: A temperature instrument is an instrument used to measure, display, control or record the temperature of an object or environment. It can realize quantitative monitoring of temperature by sensing temperature changes and converting them into identifiable signals such as electrical signals and mechanical displacement.

Q: How are the accuracy levels of temperature instruments divided?

A: The accuracy level is expressed as the percentage of the maximum allowable error to the range, such as the error of a 0.5-level instrument ≤±0.5% FS (FS is full scale). The smaller the level value, the higher the accuracy.

Q: What is the range selection principle for temperature instruments?

A: The measured temperature should be within the range of 1/3~2/3 of the range, and long-term use beyond the range should be avoided to prevent aging or damage of components (for example, overheating of thermocouples will affect the stability of thermoelectric potential).

Q: How to choose the signal output type of the temperature instrument?

A: Analog signal (4~20mA, 0~10V): Suitable for traditional control systems, strong anti-interference.
Digital signal (RS485, Modbus): Convenient for networking and remote monitoring, high accuracy.

Q: Common faults of temperature instruments and how to deal with them?

A: Abnormal display value: Check whether the wiring is loose, whether the sensor is short-circuited/open-circuited (such as thermal resistors, which can be judged by measuring the resistance value).
Slow response: The temperature sensing element is scaled or installed in an improper position, and needs to be cleaned or reinstalled.
Transmitter has no output: Check the power supply, range setting or electronic component damage.

Q: What does the response time of a temperature instrument refer to?

A: The time required from the temperature change to the meter display value reaching 90% of the final value is affected by the material and structure of the temperature sensing element and the medium being measured (for example, a metal thermal resistor responds faster than a glass-encapsulated thermocouple).

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