MT2002 series: Que đo cảm biến nhiệt độ/ Thermocouple   Part#: MALTEC-T MT2002-K-060-0100   Ghi chú: Thermocouple type K, J, K, T, E (2000 series)   Nhãn hiệu: MALTEC-T (Malaysia)   Cấu hình: loại K   [ Tài liệu ]   [ Báo giá ]   [ Shopping ]   [ Views: 3838 ]   2021-12-10  ◊ Đặc điểm chính: Cặp nhiệt điện dòng 2000 (MT2002) này được làm hoàn toàn bằng sợi PVC 2m. Sợi thủy tinh, cáp bện, sợi, Teflon, silicone, 304, 316, vỏ bọc bằng thép không gỉ Inconel, được thiết kế sử dụng cáp cách điện khoáng & mối nối ngầm. Thermocouple 2000 Series (MT2002), complete with 2 metres PVC lead. Fiber glass, screen braided, fiber, teflon, silicone, 304, 316, Inconel stainless steel sheath, constructed using mineral insulated cable, undergrounded junction. FEATURES: Complete with 2 meters PVC lead. Fiber glass, screen braided, fiber, teflon, ,silicone, 304, 316, inconel stainless steel sheath, Constructed using mineral insulated cable, Ungrounded junction. APPLICATIONS: Used as the temperature sensors in thermostats in offices, homes, offices & businesses. Used in industries for monitoring temperatures of metals in iron, aluminum, and metal. Used in the food industry for cryogenic and Low-temperature applications. Thermocouples are used as heat pumps for performing thermoelectric cooling. Used to test temperature in chemical plants, petroleum plants. Used in gas machines for detecting the pilot flame.

1. CHARACTERISTICS OF THERMOCOUPLES TYPES:

There are many types of thermocouples, each with its own unique characteristics in terms of temperature range, durability, vibration resistance, chemical resistance, and application compatibility. Type J, K, T, & E are “Base Metal” thermocouples, the most common types of thermocouples. Type R, S, and B thermocouples are “Noble metal” thermocouples, which are used in high-temperature applications.

Type K Thermocouples

Type K thermocouples are the most widely used thermocouples in the Oil & Gas, and refining industries due to their wide range and low cost. They are occasionally referred to as Chromel-Alumel thermocouples. Note that above about 750°C oxidation leads to drift and the need for recalibration.

Type E Thermocouples

Type E thermocouples are often referred to as Chromel-Constantan thermocouples. They are regarded as more stable than Type K, therefore often used where a higher degree of accuracy is required. Note – Constantan is Copper-Nickel.

Type J Thermocouples
Type J thermocouples degrade rapidly in oxidising atmospheres above 550°C. Their maximum continuous operating temperature is around 750°C though they can with stand short duration excursions to 1000°C. They are generally not used below ambient temperature due to condensation forming on the wires leading to rusting of the iron. Note – Constantan is Copper-Nickel.

Type T Thermocouples
The Type T is a very stable thermocouple and is often used in extremely low temperature applications such as cryogenics, ultra low freezers and laboratory.

2. UNGROUNDED JUNCTION:

The junction is suspended within the sheath, surrounded by insulation, and not touching the edges. This helps protect the sensor and provides a steady and accurate temperature measurement reading. That, however, comes at the cost of response time as any temperature changes must permeate through to the enveloped junction.

MT2002 series: Que đo cảm biến nhiệt độ/ Thermocouple