Platinum rhodium thermocouple quotation

Anhui Tiankang Platinum Rhodium Thermocouple WRQK-231Waterproof brand

R-type thermocouple price armored platinum rhodium thermocouple uses precious metal high-purity platinum as the negative electrode and platinum rhodium alloy as the positive electrode. It is used in powder metallurgy, sintering bright furnaces, vacuum furnaces, smelting furnaces, and various refractory materials, ceramics, and porcelain firing. The outer tube material is corundum, and the measurement temperature is 0-1800 ℃.

S-type thermocouple price armored platinum rhodium thermocoupleThermal response time

When there is a step change in temperature, the output of the thermocouple changes to 50% of the change, and the time required is called the thermal response time, represented by T0.5.

Thermocouple nominal pressure

Generally refers to the static external pressure that the protective tube can withstand at room temperature without breaking. In fact, the allowable working pressure is not only related to the material and diameter wall thickness of the protective tube, but also to its structural form, installation method, insertion depth, as well as the flow rate and type of the measured medium.

Thermocouple with the smallest insertion depth

It should not be less than 8-10 times the outer diameter of its protective tube (except for special products).

Thermocouple insulation resistance (at room temperature)

The test voltage for room temperature insulation resistance is DC 500V ± 50V. The atmospheric conditions for measuring room temperature insulation resistance are temperature of 15-35 ℃, relative humidity of 45%, and atmospheric pressure of 86-106kPa.

a. For thermocouples with a length exceeding 1 meter, the product of their insulation resistance at room temperature and their length should not be less than 100

即Rr. L≥100 MΩ。 M L＞1m

In the formula, the insulation resistance value of Rr thermocouple at room temperature is M Ω

b. For thermocouples with a length of 1 meter or less, their insulation resistance at room temperature should not be less than 100 M Ω

Upper limit temperature insulation resistance

Anhui Tiankang Platinum Rhodium Thermocouple WRQK-231Waterproof brand