Mineral insulated (MI) Resistance Sensors (RTD – Resistance Temperature Detector)
Boylon offers MI Resistance sensor (RTD) with extension cables and/or with connection heads.
| Outside diameter: |
∅ 2 - 8 mm |
|
Measuring range: |
-50 + 600 °C |
| 3 wires or 4 wire system | |
| Sensor element: |
thin film element |
Working Principle, explained as example for a Pt100:
A Pt100 temperature sensor is a resistance sensor (Resistance Temperature Detector, RTD) made of platinum. It has a typical resistance of 100 Ω at 0°C. If the Pt100 is connected to power, a voltage arises. By measuring this voltage, the resistance and following the temperature can be measured. The resistance of a Pt100 changes almost linearly with the temperature, Pt100 can usually measure temperatures up to 850°C.
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Features - compared to thermocouples:
• higher accuracy
• strong and sensitive signal
• better stability
|
Class |
Temperature |
Type |
Resistance R0 /Ω |
Deviatin |
|
A2 |
-200°C ～ |
Pt10 |
10Ω |
±(0,15+0,002∣t∣1) |
|
B |
Pt10 |
10Ω |
±(0,30+0,005∣t∣1) |
1 ∣t∣ is the absolute value of temperature in degree Celsius
2 Class A does for Pt element only with 3 or 4 wire system
3 Class A does not suit for Pt100 when T ＞ 650 °C
|
Type |
Resistance R0 /Ω at 0 ℃ |
W100 (R100 / R0) |
||
|
|
Nominal |
Deviation |
Nominal |
Deviation |
|
Pt10 |
10Ω |
Class A ±0,006 |
1,3851 |
Class A ±0,0006 |
|
Pt100 |
100Ω |
Class A ±0,06 |
1,3851 |
|
R100 s the resistance value when Pt element in 100 °C
R0 is the resistance value when Pt element in 0 °C
W100 Ratio R100 / R0
Examples:
| When you order please specify: |
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| L1 probe length: |
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D probe diameter: |
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Sheath material: |
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| L2 extension cable length: |
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| 3 or 4 wires System: |
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| Insulation material of extension cable: |
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