| Security code： | huininggroup1npuFUPcqfWM9dd429 |
|---|---|
| browse： | |
| add time： | 2016-01-14 13:49:37 |
| recommendation： |  |
Micro armoured thermocouple has to bending, resistance to high pressure, thermal response time fast and durable and so on many merits, it and industrial assembly type thermocouple, as a transducer for measuring temperature and usually display instruments, recording instruments and electronic regulating device supporting the use of. Moreover, it can as the assembly type thermocouple temperature sensing element. It can directly measure a kind of production process from the 0~800 temperature range of liquid, steam and gas medium and solid surface temperature. Temperature measurement and control for small and curved areas. Chemical fiber, pharmaceutical and other industries indispensable measuring temperature device.
working principle
] two different components of the conductor ends by welding, forming a circuit, direct measurement of the temperature end called the working end and terminal end called cold end, also known as ginseng than the end. When the working end and reference than the end of the temperature, it will in the loop produce thermal current, connected to the display instrument, instrument will indicate the corresponding temperature of thermocouple thermoelectric EMFs values.
] sheathed thermocouple electromotive force will be with the increase of temperature of measuring end and growth, thermoelectric EMFs size only with thermocouple conductor material and temperature of the ends of the thermoelectric and the length and diameter of irrelevant.
] armored thermocouple structure principle, is by conductors and insulating magnesium oxide, coat of 1Cr18Ni9Ti stainless steel protection tube, drawing from several integration and. Armored thermocouple products mainly by the junction box, terminal and sheathed thermocouple components basic structure, and with various fixed device.
This armored thermocouple type insulation shell and then two.
Main technical parameters
This accuracy level: I or II
All nominal diameter: Phi 1, Phi 0.5
This bending diameter: R = 5D
When the nominal pressure: pressure
] sheathed thermocouple and thermal response time: "occurs in the temperature step changes, the output variation of the thermocouple to is in the order of the step change in 50% of the income of time called thermal response time, expressed by the tau 0.5.
Insulation resistance]: when the ambient air temperature is 20 + 1.5 degrees, relative humidity is less than 80%, insulation type armoured thermocouple thermocouple wires and the outer tube between the insulation resistance value provisions shall conform to the following table.
You can: Armored Thermocouple flexible deflection curvature radius of not less than 5 times the diameter of the.
] sheathed thermocouple diameter D is less than or equal to ouside 5mm, and anti splash or waterproof junction box products, users in the installation please note, thermocouple exposed part of the equipment must be installed with bracket etc. auxiliary support, increase stiffness, to ensure strong, prevent the junction box and shaking, damage to the thermocouple.
