1.Spring thermal sensor with good shock-proof performance 2.Imported film resistor with stable & reliable performance

 

 

Assembly thermal resistance

Introduction Assembly thermal resistance is usually connected with display meter, recording meter and computer, etc. to directly measure temperature of liquid, vapor, gas and solid surface ranging from -200°C to 600°C during various production process.It is widely used in petroleum, chemical industry, machinery, metallurgy, electric power, light textile ,food and other scientific department.

Theory It is based on that temperature change of material results in charge of its resistance. When resistance value change, the working instrument will display relevant temperature

 

Features Spring thermal sensor with good shock-proof performance No compensational wire, spare cost. High measuring accuracy High mechanical strength, good pressure-resistant performancesImported film resistor with stable & reliable performance

 

Main technical parameter Temperature range and tolerance class

Graduation	Nominal resistance (0°C)Ω	resistance ratio(100°C)	Temperature range °C	Tolerance class
Pt10	10	1.385	Ceramic elements: -200~600 Mica elements: -200~420	Class A: ±(0.15+0.2%|t|) Class B: ±(0.3+0.5%|t|)
Pt100	100
Cu50	50	1.428	-50~100	±(0.3+0.5%|t|)

Thermal response time

Protective tube diameter mm		Protective tube material	Thermal response time	Length(mm)
WZP	Φ12	1Cr18Ni9Ti	30~90S	225,250,300 350,400,450 500,550,650 900,1150,1650 2150
	Φ16		30~90S
	Tapered protection tube		90~180S
WZC	Φ12	1Cr18Ni9Ti	<180S

Insulation resistanceThe normal temperature insulation resistance for Pt should be no more less 100MΩ.The normal temperature insulation resistance for Cu should be no more less 50MΩ.The testing voltage of insulation resistance should be 10~100V DC.

Nature affectsAllowing the passage of maximum current is 5mA for Pt thermal resistance,and the resulting temperature rise is not more than 0.3°C.