Thermistors, thermocouples, etc

5 month ago

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Jiangsu Leitai Automation Instrument Co., Ltd.

2 year

Product details

As a kind of temperature sensor, the industrial assembled K-type thermocouple is usually used in conjunction with display instruments, recording instruments and electronic regulators. The assembled K-type thermocouple can directly measure the surface temperature of liquid steam and gas media as well as solids ranging from 0°C to 1300°C in various productions.

According to national regulations, our company produces assembled thermocouples that comply with IEC international standard graduation numbers of platinum-rhodium 30-platinum-rhodium 6, platinum-rhodium 10-platinum, nickel-chromium-nickel silicon, nickel-chromium-constantan, etc.

Our main products are: Electromagnetic flowmeter, Energy meter, Vortex flowmeter, Pressure transmitters, Level gauge, Magnetic flap level gauge.

K-type thermocouples usually consist of main components such as temperature sensing elements, installation fixtures and junction boxes.

Measuring range and allowable error range

Thermocouple Category	code name	Graduation mark	Measuring range	basic error limit
Nickel Chromium-Constantan	WRK	E	0－800℃	±0.75%t
Nickel chromium-nickel silicon	WRN	K	0－1300℃	±0.75%t
Platinum Rhodium 13 - Platinum	WRB	R	0-1600℃	±0.25%t
Platinum Rhodium 10 – Platinum	WRP	S	0－1600℃	±0.25%t
Platinum Rhodium 30 – Platinum Rhodium 6	WRR	B	0－1800℃	±0.25%t

Note: t is the actual measured temperature value of the temperature sensing element (℃)

Thermocouple nominal pressure: generally refers to the static external pressure that the protective tube can withstand and rupture at operating temperature.

Minimum insertion depth of thermocouple: should be no less than 8-10 times the outer diameter of its protective sleeve (except for special products)

Insulation resistance: When the ambient air temperature is 15-35°C and the relative humidity is <80%, the insulation resistance is ≥5 megohms (voltage 100V). Thermocouple with splash-proof junction box, when the relative temperature is 93±3℃, the insulation resistance is ≥0.5 megohm (voltage 100V)

Insulation resistance at high temperatures: When a thermocouple is at high temperature, the insulation resistance (measured per meter) between its hot electrode (including double-branch type) and the protective tube and double-branch hot electrode should be greater than the value specified in the table below.

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Jiangsu Leitai Automation Instrument Co., Ltd.

Audited supplier

2 year

Main Product: Electromagnetic Flowmeter, Vortex Flowmeter, Level Gauge, Turbine Flowmeter, Pressure Transmitters , Magnetic Flap Level Gauge

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