WRN thermocouple

WRN thermocouple
Our factory mainly produces primary instruments such as thermocouples and thermal resistorsPrefabricated thermocouple samplingUsing IEC standards. At the same time, a series and spectrum of thermocouples designed uniformly by the Ministry of Machinery and Electronics Industry are adopted.Overview
Industrial assembled thermocouples are commonly used as transmitters for measuring temperature, in conjunction with display instruments, recording instruments, and electronic regulators It can directly measure the surface temperature of liquids, vapors, gases, and solids in the range of 0 ℃ to 1800 ℃ during various production processes.
According to regulations, our company produces prefabricated thermocouples that comply with IEC standard graduation numbers, such as Platinum Rhodium 30-Platinum Rhodium 6, Platinum Rhodium 10 Platinum, Nickel Chromium Nickel Silicon, Nickel Chromium Copper, etc.
The assembly of thermocouples usually consists of main components such as temperature sensing elements, installation fixtures, and junction boxes.

Prefabricated thermocoupleOptional models

Type B, S, K, E

WRN thermocouple

Prefabricated thermocoupleMeasurement range and basic error limit

Note: t is the measured temperature value of the temperature sensing element (℃)

Prefabricated thermocoupletime constant

◆ Thermocouple nominal pressure: generally refers to the static external pressure that the protective tube can withstand and rupture at the working temperature.
The minimum insertion depth for thermocouples should not be less than 8-10 times the outer diameter of their protective sleeve (except for special products)
◆ Insulation resistance: When the ambient air temperature is 15-35 ℃ and the relative humidity is less than 80%, the insulation resistance is ≥ 5 megohms (voltage 100V). Thermocouples with splash proof junction boxes have an insulation resistance of ≥ 0.5 megohms (voltage 100V) when the relative temperature is 93 ± 3 ℃
◆ Insulation resistance at high temperatures: For thermocouples, the insulation resistance (per meter) between the hot electrode (including the double branch type) and the protective tube, as well as between the double branch hot electrodes, should be greater than the values specified in the table below.