Armoured platinum resistance as a kind of temperature sensor, it than the diameter of a fabricated platinum resistance is small, flexible, suitable for installation in duct stenosis and require rapid response, miniaturization and other special occasions. It can - 200 ~ 600 ℃ temperature range of gas and liquid medium to automatically detect and solid surface, and can be directly connected with copper wires and secondary instrument use, because it has good electrical output characteristics, to display, data recorder, recorder, controller, scanner and computer to provide accurate input values.
Armoured resistors external protecting tube of stainless steel, full of high-density oxide material inside insulation, so it has a strong pollution resistance and excellent mechanical strength, suitable for installation in harsh environment.
Armoured platinum resistance is usually by armoured platinum thermal resistance temperature sensing element, install fixtures and wiring devices and other major parts.
The characteristics of
Less thermal response time, reduce the dynamic error;
Small diameter, length is not restricted;
, high measuring accuracy;
Imported film resistance element, stable performance and reliable;
The working principle of
Armored thermal resistance is to use the material when the temperature changes, its resistance also along with the change of characteristics to measure temperature. When resistance changes, the work shows the temperature resistance of the meter.
The main technical parameters
Product standards
IEC751
JB/T8623-1997
JB/T8622-1997
The normal temperature insulation resistance
Thermal resistance at ambient temperature for 15-35 ° C, relative humidity is not more than 80%, test voltage for 10-100 - v (dc) electrode and outer casing of the insulation resistance between > 100 m Ω.
I wire diameter material
Lead form
The casing diameter phi
Tube material
Single type
Phi 2 1 cr18ni9ti
Phi 3
Phi 4
Phi 5
Phi 6
Phi 8
The supported phi 3
Phi 4
Phi 5
Phi 6
Phi 8
Measuring range and tolerance
Model index number Temperature range ° C precision grade tolerance
WZPK Pt100-200 - + 500 A magnitude + 0.15 + 0.002 (LTL)
WZPK Pt100-200 - 500 B + + 0.30 + 0.005 (LTL)
Thermal response time
The casing diameter thermal response time
Ф 3 3 or less
Ф 4 5 or less
Ф 5 8 or less
Ф 6 or less 12
Ф August 15 or less
