Description
The PT100 Temperature Sensor is an industrial-grade Platinum Resistance Temperature Detector (RTD) designed for accurate temperature measurement in liquids, gases, and solid surfaces. It features an imported Pt100 sensing chip housed in a 304 stainless steel sheath with a 1m Teflon (PTFE) silver-plated shielded cable for noise immunity in electrically noisy environments.
The probe uses the standard Pt100 element (100Ω at 0°C) and follows the IEC 60751 resistance-temperature curve. The 2B grade tolerance is ±0.6°C at 0°C, which is a lower accuracy class than standard Class B (±0.30°C at 0°C) . The 0.5% accuracy figure in your title is consistent with this grade specification. The Teflon silver-plated shielded cable provides excellent resistance to high temperatures, chemicals, and electromagnetic interference, and is commonly supplied as a 3-wire configuration for this probe type to compensate for lead resistance .
Critical limitations: The 2B grade is a lower-accuracy class — if your application requires better precision, a Class A or Class B probe should be selected instead. The Teflon cable limits the practical temperature range (typically around 200–250°C depending on the specific cable), even though the Pt100 element itself can handle higher temperatures. Do not exceed the cable’s temperature rating. Do not call this a thermocouple — it is an RTD and requires an RTD interface circuit, not a thermocouple amplifier.
Features
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Imported Pt100 Chip: High-purity platinum sensing element for stable, repeatable measurements .
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2B Grade Accuracy: Tolerance of ±0.6°C at 0°C, suitable for non-critical industrial monitoring .
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Teflon Silver-Plated Shielded Cable: PTFE insulation with silver-plated conductors and shielding for EMI rejection .
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304 Stainless Steel Sheath: Corrosion-resistant probe body for liquids, gases, and mild chemical environments .
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1m Cable Length: Suitable for routing from the measurement point to the control panel.
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3-Wire Configuration: Compensates for lead resistance (verify your specific unit) .
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Good Linearity: Pt100 elements offer near-linear resistance-temperature relationship.
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Interchangeable: Standard Pt100 curve (IEC 60751) allows replacement without recalibration in most systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | Pt100 RTD (100Ω at 0°C) |
| Accuracy Grade | 2B grade: ±0.6°C at 0°C |
| Probe Dimensions | 4mm diameter × 30mm length |
| Sheath Material | 304 Stainless Steel |
| Cable Length | 1m |
| Cable Material | Teflon (PTFE) insulated, silver-plated, shielded |
| Wiring Configuration | 3-wire (standard for this probe type) |
| Insulation Resistance | >100MΩ at 20°C |
| Long-Term Stability | R₀ drift ≤0.04% after 1000 hours at 500°C |
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