Armored thermal resistance

Model：WZPK
Category：thermal resistance
origin：SHANGHAI

WZPK Armored thermal resistance SHANGHAI AUTOMATION INSTRUMENTATION CO. LTD. NO. 11 AUTOMATION INSTRUMENTATION FACTORY Shanghai Yi Electric Actuator SHANGYI ELECTRIC ACTUATOR SHANGYI BRAND SHANGHAI ROTORK CONTROL ACTUATOR SHANGYI ELECTRICAL ACTUATOR

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WZPK Armored thermal resistance is a temperature sensor, the use of substances in the temperature changes, the resistance also changes with the characteristics of the temperature to measure. When the resistance changes, the working instrument will show the corresponding value of the temperature value. It is smaller than the assembly of platinum resistance, easy to bend, suitable for installation in the narrow pipe and require rapid response, miniaturization and other special occasions. It can be 200 ~ 600 ℃ temperature range of gas, liquid medium and solid surface for automatic detection, and can be directly connected with copper wire and secondary instrument used, because it has good electrical output characteristics, for the display , Recorders, regulators, scanners, data loggers, and computers to provide accurate input values.

working principle

Armored thermal resistance is the use of matter in the temperature changes, the resistance also changes with the characteristics of the temperature to measure. When the resistance changes, the working instrument will show the corresponding value of the temperature value. Armored thermal resistance is a temperature sensor, it is smaller than the assembly of thermal resistance diameter, easy to bend, good shock resistance, suitable for installation in the installation of thermal resistance can not be installed occasions, WZPK series armored thermal resistance using the introduction of thermal resistance temperature Components, therefore, with a precise, sensitive, fast response time, stable quality, long life and other advantages.

Armored thermal resistance outer protective cover with stainless steel, filled with high-density oxide material insulator, therefore, armored thermal resistance has a strong anti-pollution performance and mechanical strength, suitable for installation in the harsh environment.

Features

Armored resistors are made of stainless steel, filled with high-density metallurgical grade magnesia-oxide material insulator, so it has a strong anti-pollution and excellent mechanical strength, suitable for installation in the harsh environment. Armored thermal resistance is usually composed of armored platinum thermal resistance temperature sensing element, installation of fixed devices and wiring devices and other major components such as thermal response time less, reduce the dynamic error; small diameter, length is limited;

High precision;

Imported or domestic thin film resistive components, reliable and stable performance;

Technical Parameters

Armored thermal resistance technical parameters

Product performance standards:

IEC751;

JB / T8623-1997;

JB / T8622-1997;

Insulation resistance at room temperature;

Thermal resistance at ambient temperature of 15-35 ° C, relative humidity of not more than 80%, test voltage of 10-100V (DC) between the electrode and the outer casing insulation resistance> 100MΩ.

Measuring range

Thermal resistance temperature sensing element 100 ℃ when the resistance value (R100) and its resistance at 0 ℃ R0 ratio: (R100 / R0)

Index number Pt100: Class A R0 = 100 ± 0.06Ω

Class B R0 = 100 ± 0.12Ω

R0 / R100 = 1.3850

Thermal response time

When the temperature changes step, the output of the thermal resistance changes to 50% of the step change, and the time required is called the thermal response time. At room temperature insulation resistance of the experimental voltage can take any value of 10-100V DC, the ambient temperature in the range of 15-35 ℃, the relative temperature should not be greater than 80%, through the armored thermoelectric barrier measurement of the maximum current does not exceed 5mA.

Installation and use

Thermal resistance should be avoided at the side of the furnace or too close to the heating body, should be installed in the absence of vibration or vibration is very small place, while easy to construction and maintenance. The mounting position should be as vertical as possible, but must be tilted when there is a flow rate. The junction box hole should be below.

Thermal resistance should be in accordance with the provisions of wiring, the general use of three-wire system. Connect the wire should be insulated (preferably the screen) copper, the cross-sectional area should be ≥ 1.0 square millimeters, the resistance of the wire should be in accordance with the provisions of the display instrument registration.

SHANGHAI AUTOMATION INSTRUMENTATION CO. LTD.

NO. 11 AUTOMATION INSTRUMENTATION FACTORY

Shanghai Yi Electric Actuator

SHANGYI ELECTRIC ACTUATOR

SHANGYI BRAND

SHANGHAI ROTORK CONTROL ACTUATOR

SHANGYI ELECTRICAL ACTUATOR