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| Technical
data of various series of thermister |
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| 1¡¢Characteristics of armoured
platinum thermal resistance |
¡¡ The main structure of WZPK series of armored platinum
thermister is composed of metal outer
casing, wire,manganese oxide powder and platinum thermister.
T-hey have superiorities such as
shock re-sistance, high flexi-bility , quick re-action,
corrosion resistance and small volume ,
etc.They can not only replace o-ld assembling platinum
thermaister , but also can be used in
the place with v-iolent shock and corrosion , which enables
to solve some problems that cannot
be tested originally . They are products of optimal selection
in modern industria-l control
process,which is widely used in such industries as petroleum
, che-mical engineering,
metallurgy, power,textiles and war industries as well
as s-cientific research institutions.
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| 2¡¢Key technical parameters
in table below£º |
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| 3¡¢Key technical data of
armored platinum
thermal resistances |
a Temperature in use: -200¡«600¡æ
b Insulation resistance: Under the condition in which
thetemperature is 25¡À10¡æ,and the
humidityis less than or equal to 80%, the insulation resistance
shall be more than or equal to 100M¦¸.
c Depth of insertion: 100-25000mm
d Outer diameter of armor: ¦Õ2¡«8
e Time constant: it shall be less than or equal to 9s
withoutprotecting tube; it shall be more than or equal
to 180s with outside protective tube.
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| 4¡¢Key technical para-
meters of flame-proof
armored platinum th-
ermal resistances |
a Temperature in use: -200¡«600¡æ
b Insulation resistance: Under the condition in which
the temperature is 25¡À10¡æ,and the humidity is less than
or equal to 80 %, the insulation resistance shall be more
than or equal to 100M¦¸.
c Depth of insertion: 100-25000mm
d Outer diameter of armor: ¦Õ3¡«8
e Time constant: it shall be less than or equal to 9s
without protective tube; it shall be less than or equal
to 180s withouter protective tube.
f Level of protection of outer casing: IP65, explosion-proof
mark: dIIBT1-4, d IIBT1-6,
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