Description
Product introduction:
Model: WZP WZC
Name: assembly thermal resistance
Manufacturer: Shanghai Automation Instrumentation Co., Ltd.
Application: Thermal resistance as temperature measurement sensor, usually display instrument, recorder and electronic regulator, etc, according to the provisions of the state assembly production should conform to the IEC international norm of thermal resistor, Pt100 platinum thermal resistance and conform to the degree of professional norm Cu50 copper heat resistance of two groups of prefabricated, unified design type thermal resistance.
Its advantages are many, the parts are decomposed, the maintenance is convenient, the replacement of vulnerable parts cost is low
The assembly type thermal resistor (a) is transmitted by the signal, the sensitivity is high, the stability is strong, the interchangeability and the accuracy are better.
Working principle: thermal resistance is the use of matter in temperature change, its resistance also varies with the characteristics of the change it's the temperature. When the resistance changes, the working instrument displays the temperature value corresponding to the resistance value.
Temperature range and accuracy:
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Thermal resistance type |
Range℃ |
Graduation |
Tolerance△t ℃ |
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WZP type Pt resistance |
-200～420 |
Pt100 |
Class B tolerance±（0.3/+0.005︱t︱） |
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Class A tolerance±（0.15/+0.002︱t︱） |
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WZC type Pt resistance |
-150～100 |
Cu50 |
-50～100℃ tolerance±（0.30+6.0×10-3t） |
Note: “t” is absolute value of measured temperature of temperature-sensing element.
Model selection:
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W |
Z |
Spec |
Content |
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P |
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Pt resistance |
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C |
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Cu resistance |
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Thermal resistance material |
- |
１ |
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Without fixed device |
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2 |
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Fixed threaded |
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3 |
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Movable flange |
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4 |
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Fixed flange |
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5 |
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Loose coupling type |
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6 |
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Fixed thread conical |
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7 |
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Direct coupling type |
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8 |
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Fixed threaded pipe joint type |
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9 |
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Movable threaded pipe joint type |
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Fixed installation form |
2 |
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Splash proof |
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3 |
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Waterproof type |
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No unified design：Socket type，Small junction box type etc |
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Junction box form |
0 |
Φ16mm protection tube |
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1 |
Φ12mm protection tube |
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Protection tube diameter |
No unified design：All kinds of protection tube |
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W |
Z |
□ |
- |
□ |
□ |
□ |
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