Temperature Sensor Selection Guide

**Subtitle**: How to Choose the Right Sensor for Your Process

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Introduction

Selecting the right **temperature sensor** impacts measurement accuracy, system reliability, and operating costs. This guide provides a systematic approach to sensor selection.

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Selection Criteria

Temperature Range

| Sensor Type | Range | Best Range |

|------------|-------|-----------|

| PT100 | -200°C to 600°C | -50°C to 400°C |

| K Thermocouple | -200°C to 1260°C | 0°C to 1000°C |

| J Thermocouple | -40°C to 750°C | 0°C to 600°C |

| Infrared | -50°C to 3000°C | Non-contact |

Accuracy Requirements

| Application | Required Accuracy | Recommended Sensor |

|------------|------------------|-------------------|

| General industrial | ±2°C | K-type |

| Process control | ±1°C | K-type or PT100 |

| Precision control | ±0.5°C | PT100 Class A |

| Laboratory | ±0.1°C | PT100 1/10 DIN |

Environmental Factors

| Factor | Consideration |

|--------|--------------|

| Vibration | Thermocouple more robust |

| Corrosion | 316 SS sheath |

| Electromagnetic | Shielded cable, 4-wire |

| Response speed | Sheath diameter, tip style |

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Conclusion

Systematic evaluation of range, accuracy, and environment leads to optimal sensor selection.

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