WRR-230 WRR2-230 WRR-231 WRR2-231 B type thermocouple

WRR-230 WRR2-230 WRR-231 WRR2-231 B type thermocouple

Overview of WRR-230 WRR2-230 WRR-231 WRR2-231 B type thermocouple

Platinum eagle rhodium 30 -- platinum rhodium six (type b) thermocouple. The nominal chemical substance composition of the particular positive electrode (BP) is platinum rhodium alloy, in which usually the rhodium content material is 30%, the particular platinum content will be 70%, and the particular negative electrode (BN) is platinum rhodium alloy, with the particular rhodium content associated with 6%.

The size of the few wire is specific as 0. 5mm, and the permitted deviation is -0. 015mm. The minimal chemical composition associated with the positive electrode (BP) is platinum eagle rhodium alloy, within which the rhodium content is thirty percent, the platinum content material is 70%, plus the negative electrode (BN) is platinum eagle rhodium alloy, along with the rhodium content material of 6%, therefore it is commonly known because double platinum rhodium thermocouple. The most extensive operating temperature associated with the thermocouple will be 1600 ℃, as well as the maximum short-term working temperature is toll free ℃.

Features of WRR-230 WRR2-230 WRR-231 WRR2-231 B type thermocouple

Thermocouple in the particular thermocouple series offers the benefits of the particular highest accuracy, the very best stability, wide heat measurement area, lengthy service life plus temperature measurement top limit. It will be ideal for oxidizing plus inert atmosphere, plus may also be utilized in vacuum cleaner for a limited time, but it will be not ideal for decreasing atmosphere or environment containing metal or even non-metallic vapor. 1 apparent benefit of kind B thermocouple will be that it will not need payment wire for payment, since the thermal possible is less compared to 3 within the variety of 0 ~ 50 ℃ μ V。

The drawback of type W thermocouple is the particular thermal potential. The particular thermoelectric potential price is small, plus the sensitivity will be low, the mechanised strength decreases in high temperature, this is very delicate to pollution, as well as the valuable metal components are expensive, therefore the one-time expense is large.

Working principle of WRR-230 WRR2-230 WRR-231 WRR2-231 B type thermocouple

The particular working principle from the thermocouple is: both ends of 2 conductors with various parts are welded to create the loop. The immediate temperature measuring finish is called the particular measuring end, plus the wiring fatal finish is known as the particular reference end. Whenever there is the temperature difference among the measuring finish and the research end, the heat current will become produced in the particular loop. Connect the particular display instrument, as well as the instrument will show the corresponding heat associated with the particular thermoelectric EMF produced by the thermocouple.

The thermoelectric electromotive force of the particular thermocouple will boost with the boost of the heat in the measuring finish. The dimensions of the thermoelectric electromotive force is just associated with the materials of the thermocouple conductor and the particular temperature difference in both ends, plus has not perform with the size and diameter from the Thermoelectrode.

The put together thermocouple is primarily made up of junction package, protective tube, insulation sleeve, wiring fatal and Thermoelectrode, plus is furnished with numerous installation and repairing devices

Product technical parameters of WRR-230 WRR2-230 WRR-231 WRR2-231 B type thermocouple

◆ measurement range: 0-1600 ℃

◆ graduation number: B graduation

◆ accuracy grade: Grade I (± 1.5 ℃ or ± 0.0025 |)

◆ thermocouple type: platinum rhodium 30 - platinum rhodium 6

◆ junction box type: waterproof junction box

◆ installation method: fixed thread type

◆ protective tube material: 16mm diameter corundum tube

◆ insertion depth of protective pipe: l = 100-1200mm

◆ thermal response time: t0.5 < 150s (when the temperature changes step by step, the output of the thermocouple changes to 50% of the change, the time required is called thermal response time, expressed by t0.5)

◆ nominal pressure of thermocouple: none (generally refers to the static external pressure that the protection pipe can withstand without breaking at room temperature)

◆ nominal flow rate of thermocouple: None

◆ thermocouple insulation resistance: the test voltage of normal temperature insulation resistance is DC 500V ± 50V. The atmospheric conditions are temperature 15 ~ 35 ℃, relative humidity 45%, and atmospheric pressure 86 ~ 106kpa. Its normal temperature insulation value shall be ≥ 100m Ω.

◆ executive standard: JB / t9238-1999