Thermocouple assembly.

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WRNWith thermocouple As a measurement of the temperature transmitter and usually display instrument …

Productoverview:

WRN With thermocouple As a measurement of the temperature transmitter and usually display instrument and record instrument and electronic regulator supporting the use of. It can be directly measured in various production processes from 0 to 1800 DEG C. the range of liquid, steam and gas and solid surface temperature.According to state regulations, thermocouple assembly production company according to the international standard IEC 30 - Platinum Division No. 6, 10 Platinum Rhodium Platinum, nickel chromium nickel silicon, nickel constantan etc..

Two, work principle:

WRN series of <strong> assembly type thermocouple</strong> electrodes by two different conductor materials. The working principle of two different components of the conductor ends by welding, forming a loop direct temperature measuring end call measurement end, terminal end call reference end. When there is temperature difference between the measuring terminal and a reference terminal, will produce thermal emf in the circuit, connected to display instrument, the instrument will indicate the corresponding temperature of the thermocouple electromotive force generated by the value of the.

WRN series <strong> thermocouple assembly</strong> of the thermoelectric power with the measuring end temperature rise, thermoelectric sizeonly withthermocouple conductor material and the temperature difference between the two ends of the length, diameter and thermal electrode without thermocouple assembly is mainly composed of a junction box, protection tube, insulation casing, terminals, power extremely basic structure, and in a variety of fixed device.

Three, main features:

1, simple assembly, convenient replacement;

2, the pressure spring type temperature sensing element, good anti vibration performance;

3, large range of temperature measurement;

4, high mechanical strength, good pressure resistance.

Four, technical parameters:

Product executive standard

IEC584

IEC1515

GB/T16839-1997

JB/T5582-91

Insulation resistance at room temperature:

When the environment temperature is 20 + 15 ~ C, the relative humidity is not more than 80%, the test voltage is 500 + 50V (DC) insulation >1000 resistor between.M electrode and outer tube.

Fifth, the measurement range and basic error limit:

Note: t is the sense of temperature measured temperature component values (c) thermal inertia level

Nominal pressure thermocouple: generally refers to the static outer protective tube can withstand working temperature and pressure rupture.
Thermocouple: minimum insertion depth should be not less than 8-10 times the diameter of the protective sleeve (Frederick product exception)
Insulation resistance: when the ambient air temperature is 15-35 DEG C, relative humidity is less than 80% when the insulation resistance is more than 5 megohm (voltage 100V). With the splash proof junction box of the thermocouple, when the relative temperature is 93 + 3 DEG C, the insulation resistance of more than 500 billion euro (voltage 100V)
The insulation resistance of high temperature thermocouples under high temperature, the thermal electrode (including double type) and the insulation resistance between protection tube and double heat electrode (per meter) should be greater than the value specified under the table.
Sixth, code: