Pt100 armored thermal resistance is introduced1

Armored thermal resistance characteristics of

armoured resistors external protecting tube of stainless steel, with high density in metallurgical grade magnesia oxide material insulation, so it has a strong pollution resistance and excellent mechanical strength, suitable for installation in harsh environment. Armored thermal resistance usually by armoured platinum thermal resistance temperature sensing element, install fixtures and wiring devices and other major parts, such as thermal response time, reduce the dynamic error; Small diameter, length is limited;

armoured working principle of the thermal resistor

armored thermal resistance is to use the material when the temperature changes, its resistance also along with the change of characteristics to measure temperature. When resistance changes, the work shows the temperature resistance of the meter. Armored thermal resistor is a kind of temperature sensor, it is smaller than the diameter of a prefabricated thermal resistance, flexible, good vibration resistance, suitable for installation in the case of prefabricated thermal resistance can't install, WZPK armored thermal resistance series adopts imported thermal resistance temperature measurement component, therefore, is accurate, sensitive, fast thermal response time, stable quality, long service life, etc.

armored thermal resistance protective mining have stainless steel, with high density in oxidation material insulation, therefore, armored thermal resistance strong pollution resistance and mechanical strength, suitable for installation in harsh environment.

armored thermal resistance technology parameter

product standards

IEC751;

jbt8623 - 1997;

jbt8622 - 1997;

normal temperature insulation resistance;

thermal resistance at ambient temperature for 15 - 35 ° C, relative humidity is not more than 80%, the test voltage for 10 - 100V( Dc) Between the electrode and outer casing insulation resistance & gt; 100MΩ。

range

element heat resistance temperature 100 ℃ when the resistance value ( R100中) And it is in 0 ℃ when the resistance ratio (R0 R100R0)

dividing Pt100: grade A R0 = 100 + 006 Ω

B R0 = 100 + 012 Ω

R0R100 = 13850

thermal response time

there was A step change in temperature, the output of the thermal resistance changes to the equivalent of 50% of the step change, the time required, known as the thermal response time. The normal temperature insulation resistance experiment voltage dc 10 - desirable 100 v arbitrary value, environmental temperature in 15 Relative temperature 35 ℃ range, should be no greater than 80%, by armored thermoelectric block measurement current biggest not more than 5 ma.

armored thermal resistance to install and use the

thermal resistance should avoid too close to or from the heating body installed on the stove, should try to install where no vibration or vibration is very small, at the same time to facilitate the construction and maintenance. Installation position should be kept vertical, but must be installed tilt at a velocity. Junction box out of the hole should be down.

thermal resistance should be in accordance with the provisions, wiring, usually use three wire system. Connect wires should be insulated ( It is best to screen open) Copper wire, the cross-sectional area shall be 10 square millimeter, or resistance of the wire should be according to the provisions of the display instrument.

by thermal inertia make the thermal resistance lag temperature changes, to eliminate the error due to its, should as far as possible to minimize thermal resistance protect the pipe outer diameter, increasing heat resistance insertion depth make thermal resistance heat position increase.

to check protection tube, immediate measures should be taken to find the oxidation or deformation, check regularly.

the customer respect and god:

a: hello, is the development of a technology to create high quality company, and to provide users with high-quality products and perfect solution. The main products are PT100 temperature sensor, thermocouple, temperature sensors, pressure sensors, liquid level sensor and all kinds of instruments and meters, etc. Such as temperature transmitter, pressure transmitter, etc.

our company insist on quality first, the customer for this, innovation as the purpose, with a firm pace, scaling new heights, for the Chinese nation instrumentation industry dedicated his own strength, hope that the new and old customers to the choose and buy the desired products. We will serve you wholeheartedly!