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Standard thermometer

Class II Standard Platinum Resistance(Zinc Point Quartz Tube)

2021-11-27 This article is read 6979 Times

II standard Platinum resistance(Zinc point quartz tube)

◇ Introduction ◇ Function◇ Parameter◇ Product order◇ Download◇ Related products


Introduction:

Class II Standard Platinum Resistance(Zinc Point Quartz Tube) is a standard apparatus to measure temperature according to the characteristic of the resistance value of platinum wire changing with single value of temperature. The ITS-90 International temperature scale specifies that standard platinum resistance thermometers are interpolated instruments from 13.8033K(-259.3467℃) to 961.78℃. Standard platinum resistance thermometers are the thermometers with the highest accuracy and the best stability when measuring temperature under current production conditions.

Standard platinum resistance thermometers are measurement standards used to transmit international temperature scales. In the verification of various standard mercury thermometers; Industrial platinum and copper thermal resistance thermometers; Precision temperature timing is used as standard. It can also be directly used for temperature measurement with high accuracy requirements.

Technical indicator:

Temp.range

 13.8033K273.16K

Nominal resistance at the triple point of waterΩ

 25

  Sensitivity Ω/℃

 0.1

 Resistance ratio

WHg≤0.844235

Casing type

  Quartz

Outer diameter of casing

 Φ7mm

Length of casing

 520


Class II Standard Platinum Resistance(Zinc Point Quartz Tube)
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Copyright? Tai'an Dearto Automation Instrument Co., Ltd.

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