Temperature instrument selection, for example (1) temperature control. Temperature control range of 300 ℃ ~ 1000 ℃, 380V three-phase resistance wire heating, power of 50kW, requirements volatility around 5 ℃. K even suggested the use of two digital display measurement and control instruments, the range is 0 ℃ ~ 1200 ℃ temperature controller, resolution 1 ℃, relay hysteresis 1 ℃ ~ 2 ℃. Range of motion control contact is ± (1 ~ 2) ℃, plus the furnace temperature measurement lag, basically furnace temperature fluctuation can be controlled within the desired range. (2) oven temperature. Requirements for temperature measuring range of 100 ℃ ~ 400 ℃, 220 V single-phase resistance wire heating, power of 3kW, temperature stability required to achieve ± 0.5 ℃. By temperature stability index, use digital control thermostat can not meet the requirements. Optional TMC300 Temperature Monitor (Shenyang Academy of Instrumentation Science production) or other similar products. Instrument molybdenum resistance as the temperature sensing element, and control temperature range -50.0 ℃ ~ 600.0 ℃, resolution 0.1 ℃, the measurement accuracy of 0.2%, continuously adjustable duty cycle control mode. Metal objects according to thermal expansion and contraction principle expansive. Intelligent temperature thermal expansion and contraction is common objects, but the extent of its thermal expansion and contraction of different objects are not the same. Double gold on both sides are different conductor material mechanical temperature control table, at varying temperatures due to sizing degree is not the same as leaving the double gold bend, hit the set of contacts or switches, the setting of the circuit (protection ) to work. Note: KSD301 series for the sudden jump of plastic as the main form of automatic reset. KSD302 series for the sudden jump ceramics as the main form of automatic reset. KSD303 series for the sudden jump of plastic as the main form of manual reset. KSD304 series for the sudden jump of plastic as the main body, 16A double contact form automatically reset. KSD305 series for the sudden jump of plastic as the main body, 16A double contact form automatically reset. KSD301 series ● Operating temperature fixed performance, without adjustment, simply, reliable action, no arc, long life, low radio interference. ● electrical parameters AC250V 5A / 10A / 16A AC120V 7A ● temperature operating range: -25 ℃ ∽ + 240 ℃ + 1 ℃ ∽2 ℃ according to user requirements ● ● lifespan of more than 10 million times the insulation value> 100MΩ ● high precision, good stability, good mechanical thermostat table synchronization _ You win electromechanical (certified) _ Hainan temperature table provided by Changzhou gifted Litas Electrical Co., Ltd. established. Changzhou Li gifted Litas Electrical Co., Ltd. (www.abc.com) is Changzhou, Jiangsu, indicator leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Li gifted Litas electromechanical leadership with the staff warmly welcome all inquiries negotiations, founded gifted Litas electromechanical a better future.