Industrial thermal resistance, temperature sensor, integrated temperature transmitter | Guangzhou temperature transmitter

Industrial thermal resistor
, temperature sensor, integrated temperature transmitter
|
The product description information of Guangzhou temperature transmitter
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Industrial thermal resistance
The external dimensions of this type of sensor are in accordance with national standards. Use splash-proof or waterproof junction boxes, fixed threads, and stainless steel protective tubes.
This type of product has the characteristics of strong corrosion resistance and long service life, and is generally used for measurement in the temperature range.
The commonly used protective tube lengths for this type of sensor are: Example* * branch.
When placing an order, the user should indicate the name, model, graduation number, specifications and quantity of the sensor.
Product model description of temperature sensor
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Temperature sensor
Category Chromium Nickel Silicon Type Thermocouple Chromium Copper Nickel Type Thermocouple Copper Nickel Type Thermocouple Resistance Thermal Resistor
Basic type Quasi-type Easy-type head type Spring type Textured surface type
Fixing device Fixed thread Moving thread Fixed flange Moving flange Fixed ring
Junction box type Junction box Easy junction box splash wiring Box water junction box seat type terminal
Measuring terminal type shell type head type edge type
Thermal resistor selection
Currently the most widely used thermal resistance materials are platinum and copper. Platinum resistance has high accuracy. Suitable for neutral and oxidizing media, with good stability and certain nonlinearity. The higher the temperature, the smaller the resistance change rate. The resistance value of copper resistor has a linear relationship with temperature within the temperature measurement range. The number of temperature lines is large, which is suitable for corrosion. Medium, more than easily oxidized. The most commonly used ones are , , and , and their graduation numbers are , , , and copper resistors , and their graduation numbers are and . Among them, neutralization is the most widely used.
The integrated temperature transmitter is a contact-type on-site instrument for measuring temperature. It is usually used in conjunction with its corresponding secondary instrument or computer acquisition and measurement system. It can accurately measure the temperature of various media or objects during the production process. Temperature (usable range ℃ ~ ℃).
The integrated temperature transmitter is an amplified transmission module installed in the waterproof or explosion-proof junction box of the assembled temperature sensor, and is connected to the sensor to form an integration, with a standard output (two-wire system). The explosion-proof integrated temperature transmitter meets the explosion-proof performance of both explosion-proof and intrinsic safety (intrinsic safety must be equipped with a safety barrier).
This series of products refers to the relevant contents of the relevant standards and regulations promulgated by the country, and also refers to and complies with the relevant document standards. It also refers to the advantages of similar products at home and abroad for optimized design, making the entire product more reliable and accurate, and very suitable for various industries. Temperature measurement on-site in various environments.
Standard functions
, basic structure sensor + (connection device + junction box + protective tube) + transmission module
, length expression method, total length of protective tube, insertion length (unit, below the sealing surface is the insertion length Length)
Determination of the cold end length Since the total length and insertion length of the protection tube are determined, the length of the non-insertion part of the protection tube, that is, the cold end length, is also determined. The standard length of the cold end is measured at a temperature below ℃. It can be lengthened appropriately depending on the impact of temperature on the cold end, such as or.
. Purpose of the cold end length
The working temperature of the transmission module is ~℃. The length of the cold end reduces the conduction and radiation temperatures between the temperature field and the junction box, thus protecting the transmission module. circuit.
If a thermocouple sensor is used, it must have a cold end length.
, protect terminals and cables.