WZPK series armored platinum resistor
Armored platinum resistance is a temperature sensor that has a smaller diameter, is more flexible, and has better shock resistance than prefabricated platinum resistance. It is suitable for installation in situations where prefabricated platinum resistance cannot be installed. The WRPK series armored platinum resistors produced by our factory use imported platinum resistance temperature measuring elements, which have the advantages of precision, sensitivity, fast thermal response time, stable quality, and long service life.
The outer protective sleeve of the armored platinum resistor is made of stainless steel and filled with high-density oxide material insulation. Therefore, it has strong anti pollution performance and excellent mechanical strength, making it suitable for installation in harsh environments.
Armored platinum resistors can be used to measure temperatures within the range of -200 to 500 ℃, and can be directly connected to secondary instruments using copper wires. Due to its excellent electrical output characteristics, it can provide accurate temperature change input signals for displays, recorders, regulators, scanners, data loggers, and computers.
working principle
Working principle of armored platinum resistance: The resistance of platinum resistance wire changes with temperature. The display instrument will indicate the temperature value corresponding to the resistance value generated by the platinum resistor.
Main technical indicators
The ratio of the resistance value (R100) of the thermal resistance sensing element at 100 ℃ to its resistance value (R0) at 0 ℃ is R100/R0.
Division number Pt100: Class A R0=100 ± 0.06 Ω
B-class R0=100 ± 0.12 Ω
W100=R100/R0=1.3850
Range specifications
|
model |
graduation mark |
Temperature measurement range ℃ |
accuracy class |
Allowable deviation △ t ℃ |
|
WZPK |
Pt100 |
-200~500 |
A-level |
-Allowable deviation at 200-650 ℃ ± (0.15+0.002/t/) |
|
Grade B |
-Allowable deviation at 200-800 ℃ ± (0.30+0.005/t/) |
Note: "t" is the absolute value of the measured temperature of the temperature sensing element.