WSS-581 bimetallic thermometer

WSS-581 bimetallic thermometer

★ Main technical indicators

Temperature measurement range: -60~500 ℃

Accuracy level: 1.5, basic error: limited to 1.5% of the range

Indicator section of thermometer: (indicated by the outer diameter of the thermometer dial) divided into ￠ 60, ￠ 100, and ￠ 150mm

Tail pipe length: 100-2000mm.

Tail pipe diameter: ￠ 6, ￠ 10 (when tail pipe length is 100-1250mm), ￠ 12 (when tail pipe length is 1250-2000mm)

Installation thread: M16X1.5; M27X2; G1/2; G3/4。 The material of the tailpipe and fixed bolt joints is 1Cr18Ni9Ti stainless steel, with a pressure resistance of 6.4MPa.

Waterproof performance: The shell of the thermometer should be able to withstand water spray with a nozzle diameter of 25 millimeters at a distance of 5 meters (with a water pressure of not less than 2 kg force/cm ² before the nozzle outlet) for 5 minutes, and no water should seep into the interior of the thermometer shell. Compliant with IP65 standard.

WSS-581 bimetallic thermometer

★ Thermometer form

◆Hot sleeve typeOrdinary bimetallic thermometers must be cooled, depressurized, or shut down when used in high temperature, high pressure, or volatile harmful gas decomposition environments. If the instrument is damaged and needs to be replaced. When using a hot sleeve bimetallic thermometer, there is no need to cool down or reduce the pressure, and there is no need to shut down the machine when the instrument is damaged and needs to be replaced. Only the instrument movement needs to be replaced, and the enterprise can achieve continuous production.

◆Angle type (axial type)The form in which the axis of the detection element is perpendicular to the plane of the scale plate, also known as axial type.

◆Straight type (radial type)The form in which the axis of the detection element is parallel to the plane of the scale plate, also known as radial type.

The radial bimetallic thermometer produced by our factory has a domestically designed bent tube shape, with a novel structure, beautiful appearance, and lightweight design. Good anti-corrosion and waterproof performance. The watch box is compatible with angle thermometers, and can be made of aluminum plate stretched and treated with black sub light electrophoresis, as well as stainless steel plate stretched and formed. The bent pipes are also made of all stainless steel. The structure of this product has been applied for as a national utility model. Application number: 97Z34205.2

◆Universal typeIn addition to its angular straight function, it can also be converted from angular to straight or from straight to angular and can be infinitely adjusted by the user. The corrugated pipes and structural components used are made of lCr18Ni9Ti stainless steel, making it easy to use and corrosion-resistant.

Thermometers are generally manufactured in angular form, meaning that the zero position does not need to be adjusted when used in angular form. If the user needs a straight type factory, it must be specified when ordering.

When the thermometer is converted from a straight type to an angle type or from an angle type to a straight type, there may be slight changes in the thermometer reading, which can generally be ignored. If the user has higher requirements, they can adjust the zero position themselves in the variant type. The user can unscrew the watch cover counterclockwise, then loosen the locking nut of the dial counterclockwise with a wrench to adjust the "0" position in the freezing point slot, and then tighten the nut and watch cover.

◆Hot sleeve long neck type (model: WSS-D)The hot sleeve long neck bimetallic thermometer is a new product specially developed for temperature measurement in power plants. It can also be used for temperature measurement of equipment and pipeline media in thermal processes of chemical, petroleum, metallurgy, textile, pharmaceutical and other departments.

In the thermal process of the power station, in order to prevent a large amount of heat loss, a thick insulation layer is applied outside the thermal equipment and thermal pipelines. The traditional bimetallic thermometer often needs to partially damage the insulation layer due to its short neck size to expose the meter head. The newly developed thermal sleeve type long neck bimetallic thermometer uses a special structure to make the meter head higher than the insulation layer for easy observation and energy saving. As it is a hot sleeve type, the meter head can be replaced at any time, and the thermometer form may need to be changed. This product has been applied for in the country, application number: 97234368.7

The neck length specifications are shown in the table below

The neck length A size can also be customized according to the actual needs of the user

When placing an order, fill in the model according to the following requirements

Example: WSS-481D L × A=300 × 216

The indicator dial size is ￠ 100, with external thread fixed universal type insertion depth of 300mm and neck length of 216mm

★ Model and measurement range

★Operation and Maintenance

1. To ensure the accuracy of the thermometer, the depth of immersion of the tail pipe into the measured medium should be above 75 depending on the length of the tail pipe.

2. When reading, the line of sight should be perpendicular to the dial.

3. After normal use (generally not exceeding one year), the thermometer should be regularly calibrated according to the relevant calibration regulations for industrial bimetallic thermometers.

4. When the hot set thermometer is damaged and needs to be replaced during use, simply loosen the nut counterclockwise, then unscrew the core and leave the protective sleeve in the device. Install the new core without making contact between the bimetallic screw tube and the bottom of the protective sleeve, and tighten the nut.

5. During transportation, storage, installation, and use, thermometers should avoid colliding with the tailpipe and should not be bent or deformed.

★Product Introduction

WSS-581 bimetallic thermometer 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, vibration resistant, intuitive, easy to read, mercury free, sturdy and durable in terms of design principles and structure. It can automatically send control signals to cut off power or alarm when the working temperature exceeds the given value. It can replace other temperature measuring instruments and is widely used in industries and scientific research departments such as petroleum, chemical, machinery, shipbuilding, power generation, textile, printing and dyeing.
★Technical Specifications
Product execution standards：
JB/T8803-1998
GB3836-83
Nominal diameter of dial: 60, 100, 150
accuracy class: 1.0, 1.5
Thermal response time：≤40s
Protection level：IP55
Angle adjustment errorThe angle adjustment error should not exceed 1.0% of its range
backlashThe hysteresis of the thermometer should not exceed the value of the basic error limit
Repeatability: The repeatability limit range of the thermometer should not exceed 1/2 of the basic error limit
★Product Features
Mercury free, easy to read, sturdy and shock resistant.
The protective pipe material is 1Gr18Ni9Ti stainless steel and molybdenum titanium, with strong pressure resistance and anti-corrosion ability.
The core pulling thermometer can be maintained or replaced for a short period of time without stopping the machine.
Axial type, radial type, 135? There are a complete range of types such as universal type and universal type, which are suitable for various on-site installation needs.
★Usage and maintenance
During the storage, installation, use, and transportation of WSS series bimetallic thermometers, it is advisable to avoid collisions with protective tubes and avoid using them Bending and deformation of the protective tube. During installation, it is strictly prohibited to twist the instrument housing.
2. The instrument should operate normally within an ambient temperature range of -30 ℃ to 80 ℃.
3. The temperature at which the instrument frequently operates can be within 1/2 to 3/4 of the scale range.
★Measuring range
The temperature measurement range, accuracy level, division value, protective tube diameter, and minimum insertion depth of WSS thermometer are shown in the table below.

Note:

1. The insertion depth L of the thermometer must be greater than Lmin. The available series for L are: 100150200250300400500750,

100012501502000, etc., can also be customized according to user needs.

2. The time constant of this series of thermometers with protective tube diameters of Φ 6 and Φ 8 shall not exceed 40 seconds, and for a diameter of Φ 10, the time constant shall not exceed 30 seconds.

3. The protective tube is made of stainless steel 1Cr18Ni9Ti, with a maximum working pressure of 6.4MPa at room temperature

★Model

Universal pointer thermometer

Note:
Selection notice: Please provide the model, dial diameter, accuracy level, installation and fixing form, temperature measurement range, protective tube material, length or insertion depth. Example of selection: Universal pointer 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，