Thermal sleeve type double metal thermometer

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WSS series Thermal sleeve type double metal thermometer Is a kind of field measurement for middle an…

Productoverview:
WSS series Thermal sleeve type double metal thermometer Is a kind of field measurement for middle and low temperature measuring instrument, can be used for direct measurement of gas, liquid, and vapor temperature. The thermometer from the design principle and structure of waterproof, anti-corrosion, explosion-proof, anti vibration, intuitive, easy reading, no mercury damage, durability and other characteristics. The measurement instrument can replace the other workers.
Two, work principle:
WSS series Thermal sleeve type double metal thermometer Is the principle of expansion work in varying degrees of temperature change when using two different metals. Industrial use of double metal thermometer main element is one with two or more metal sheet laminated together to form a multilayer metal sheet. In order to improve the measurement sensitivity of double metal thermometer, usually made of sheet metals of spiral shape. When the multilayer metal sheet temperature changes, each layer of metal expansion or shrinkage range, so that the spiral rolled up or loosen. Since the end of the spiral coil is fixed and the other end and a pointer can rotate freely. Therefore, when the feeling of double sheet metal to temperature changes, in a pointer to the circular indexing on the gauge indicates the temperature to.
Three, application:
WSS series Thermal sleeve type double metal thermometer With the installation of all kinds of casing, meet different pressure level requirements. Can be directly measured in various production processes within the range of -80-+500 DEG C liquid, steam and gas and solid surface temperature.
Four, main features:
1, the scene display temperature, convenient, safe and reliable, long life and other characteristics.
2, victims of mercury free, easy reading, strong shock.
3, the protection pipe of 1Gr18Ni9Ti stainless steel and two molybdenum titanium, pressure, strong corrosion resistance.
4, core pulling type thermometer can not stop short time maintenance or replacement of movement.
Five, technical parameters:
The implementation of standards
JB/T8803-1998 GB3836-83.
Other parameters
Dial diameter: 60100150;
The accuracy level: (1, 1.5);
Thermal response time: less than 40S;
Protection grade: IP55;
Angle adjusting error: angle adjusting error should not exceed the range of 1.0%;
Return difference: double metal thermometer to the difference should be less than the absolute value of the basic error limit;
Repeatability: double metal thermometer repeatability limit should be less than the absolute value of basic error of 1/2.

Six, matters needing attention
1, can not be directly screw head;
2, the length of choice to choose the standard size close to the (integer multiples of 50mm);
3, the protective tube immersionmedium measured in length must be greater than the length of the sensing element, the general recommended immersion length is greater than 100mm, 0-50 DEG C immersion length range is more than 150mm, to ensure the accuracy of measurement.
4, double metal thermometer should not be used to open the container medium temperature measurement.
In 5, storage, installation and transportation, should avoid collision protection tube, do not allow the protection tube bending change, but not the table when using the wrench.
6 regular inspection, under normal conditions of use should be. In general, every six months.
7, not allowed to work in the strong vibration environment, so as not to affect the double metal life, electric contact bimetallic thermometer is not allowed in the control loop vibration occasions, so as not to affect the reliability.

Seven, temperature range:

Eight, dimensions:

9, models and specifications:

Note: Zhongwei and double metal thermometer can be installed with a variety of casing, casing in thermal heat installation form installation casing;
The protection tube material according to ordering protocol: * said nominal pressure set according to flange pressure rating.

10, encoding selection:

The selection of examples:
Universal type double metal thermometer, dial diameter 100, temperature range of 0 to 400 DEG C, 1.5, M27 * 2 rotatablemale thread length 450mm, WSS-481, 0 ~ L=450, 400 C, M27 * 2, 1.5.

The design and selection of notes:

1, model;
2, precision grade;
3, temperature range;
4, fixed form;
5, the installation form of casing heat;
6, the inserted length.
Customer service service commitment:
1, my company sold Zhongwei Thermometer series The product within twelve months of quality problems, responsible for free maintenance.
2, the warranty period if the products of our company have any quality problems, our company is responsible for free repair or replacement.
3, the warranty period if the user use undeserved, cause damage to the product, our company is responsible for the maintenance, collect the damaged parts cost.
4, after the warranty period of product quality problems, our company is responsible for the maintenance, collect the damaged parts cost.
5, if the user needs to our service, our company in the province of the user service personnel arrived at the scene within 12 hours, arrived at the scene 48 hours outside users.