Vibration proof type double metal thermometer

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WSSN series Vibration proof type double metal thermometer Is a kind of field measurement for middle …

Productoverview:
WSSN series Vibration proof 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 protection tube, joint bolts are made of stainless steel materials, aluminum case with the machined surface black electrophoresis processing, table structure and table box sealing rubber ring by ring double screw cap, the meter overall waterproof anti-corrosion performance is good, the bending type structure, novel appearance, lightweight and beautiful out of the ordinary.
Two, work principle:
WSSN series Vibration proof 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:
WSSN series Vibration proof type double metal thermometer Filled with seismic oil, effectively prevent mechanical vibration in the process of measurement caused by instrument damage or inaccurate measurement. Widely used in petroleum, chemical, machinery, shipbuilding, power, textile, printing and dyeing industry and scientific research departments.
Four, main features:
1, the scene display temperature, convenient safe and reliable, long service life;
2, a variety of forms, can meet different requirements. 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.
5, integrated with axial type, radial type, 135 type, universal type, complete varieties, suitable for various on-site installation need.
Five, technical parameters:
1, product standards: JB/T8803-1998; GB3836-83;
2, dial diameter: 60, 100, 150;
3, precision grade: 1, 1.5;
4, thermal response time: less than 40s;
5, protection grade: IP55;
6, adjust the angle error: adjustment angle error should not exceed the range of 1%;
7, return difference: the temperature difference should be less than the absolute value back to the basic error limit;
8, the repeatability reproducibility limits: the thermometer cut 1 / 2 should not be greater than the absolute value of basic error limit.

Six, matters needing attention:
1, in storage, installation, use and transport process, to avoid the collision protection tube, prohibit the protection tube bending and deformation.
2, installation, non twist instrument shell.
3, the instrument shall work normally in the -30 to 80 DEG C ambient temperature.
4, the instrument can often work in the temperature scale range 1/2 ~ 3/4.
5, the protective tube immersionmedium measured in length must be greater than the length of the sensing element, this is done in order to ensure the accuracy of measurement.
6, do not use media exposure in measuring container.
7, the use of the process should pay attention to check in time, probably in about 6 months.

Seven, temperature range:

Remarks：
One The insertion depth of the thermometer, L Must be greater than Lmin , L Alternative series: One hundred , One hundred and fifty , Two hundred , Two hundred and fifty , Three hundred , Four hundred , Five hundred , Seven hundred and fifty , One thousand , One thousand two hundred and fifty , One thousand and five hundred , Two thousand So, also can be customized according to user needs.
Two And the protective tube diameter Phi 6 , Phi 8 The series of thermometers, the time constant is less than FortySecond, diameter Phi 10 When the time constant is less than Thirty Seconds.
Three Protect the stainless steel tube 1Cr18Ni9Ti Manufacturing, at room temperature under high working pressure is Zui 6.4MPa .

Eighth, shape and size:

9, encoding selection:

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

Ten, design and ordering:
Please provide the type, dial diameter, precision grade, fixed form, the range of temperature measurement, protection material, pipe length or depth of insertion.
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.