Hot set bimetallic thermometer

Temperature Gauge Series>>WSSHot set bimetallic thermometer:

1、 Instrument Overview:
Hot set bimetallic thermometerIt is a field detection instrument suitable for measuring medium and low temperatures, which can be used to directly measure the temperature of gases, liquids, and vapors. This thermometer has the characteristics of waterproof, corrosion-resistant, explosion-proof, vibration resistant, intuitive, easy to read, mercury free, sturdy and durable in terms of design principles and structure. Can replace other measuring instruments.
2、 Measurement principle:
Hot set bimetallic thermometerIt works by utilizing the principle that two different metals expand differently when the temperature changes. The main component of industrial bimetallic thermometers is a multi-layer metal sheet composed of two or more metal sheets stacked together. To improve the temperature sensitivity of bimetallic thermometers, the metal sheet is usually made into a spiral coil shape. When the temperature of multi-layer metal sheets changes, the expansion or contraction of each layer of metal is uneven, causing the spiral coil to roll up or loosen. Due to one end of the spiral coil being fixed and the other end being connected to a freely rotatable pointer, when the bimetallic strip senses a temperature change, the pointer can indicate the temperature on a circular scale.
3、 Applicable occasions:
Bimetallic thermometers can be equipped with various installation sleeves to meet the requirements of different pressure levels. It can directly measure the temperature of liquid, steam, gas media and solid surfaces within the range of -80-+500 ℃ in various production processes.
4、 Performance characteristics:
1. On site temperature display, intuitive and convenient, safe and reliable, with long service life and other characteristics.
2. Mercury free, easy to read, sturdy and shock resistant.
3. The protective pipe material is 1Gr18Ni9Ti stainless steel and molybdenum titanium, with strong pressure resistance and anti-corrosion ability.
4. The core pulling thermometer can be maintained or replaced for a short period of time without stopping the machine.
5、 Technical indicators:
execution standard
JB/T8803-1998 GB3836-83。
Other parameters
Scale dial nominal diameter: 60100150;
Accuracy level: (1.0), 1.5;
Thermal response time: ≤ 40S;
Protection level: IP55;
Angle adjustment error: The angle adjustment error should not exceed 1.0% of its range;
Return difference: The return difference of the bimetallic thermometer should not exceed the value of the basic error limit;
Repeatability: The repeatability limit range of bimetallic thermometers should not exceed 1/2 of the basic error limit.

6、 Precautions
1. Cannot directly twist the header;
2. Choose a length that is close to the standard size (an integer multiple of 50mm);
3. The length of the protective tube immersed in the measured medium must be greater than the length of the temperature sensing element. Generally, the immersion length is recommended to be greater than 100mm, and the immersion length for the 0-50 ℃ range is recommended to be greater than 150mm to ensure measurement accuracy.
4. Bimetallic thermometers are not suitable for measuring the temperature of media in open containers.
5. During storage, installation, and transportation, collision with the protective tube should be avoided. Do not bend or deform the protective tube, and do not use the watch as a wrench.
6. Regular inspections should be conducted under normal use. It is generally recommended to do so every six months.
7. It is not allowed to work in strong vibration environments to avoid affecting the service life of bimetallic thermometers. Electric contact bimetallic thermometers are not allowed to be used in control circuits in places with high vibration to avoid affecting reliability.

7、 Temperature measurement range:

8、 External dimensions:

9、 Model and specifications:

Note: Zhongwei Measurement and Control bimetallic thermometer can be equipped with various installation sleeves. For details on the form of hot installation sleeves, please refer to the hot installation sleeves;
The remaining materials of the protective tube are ordered according to the agreement: * indicates that the nominal pressure is ordered based on the flange pressure rating.

10Selection List：

Example of selection:
Universal bimetallic thermometer, dial diameter Φ 100, temperature measurement range 0-400 ℃, 1.5 levels, movable external thread M27 × 2, length 450mm WSS-481, 0-400 ℃, L=450, M27 × 2, 1.5 levels.

11、 Design and selection instructions:

1. Model number;
2. Accuracy level;
3. Temperature measurement range;
4. Installation fixed form;
5. Hot installation sleeve form;
6. Insert length.
After-sales service
1. The instrument series products sold by Zhongwei ensure the sale of products and spare parts at the same price within two years, and provide corresponding free of charge according to the requirements of the demand.
2. If there are any quality problems with the products provided by our company within one year (excluding vulnerable parts or accessories), we will be responsible for free repairs and provide free skill training for the employees of the demand side.
3. Due to quality issues with the products provided by our company, after verification by our technical department, we will dispatch professional technicians to the site to handle the problem until customer satisfaction is achieved.
4. Outside the warranty period, the product will be returned to the company for repair or sent to the user for repair.
5. Join hands with Zhongwei Measurement and Control to create a better future! Welcome to your visit!