Fluke 5618B-12-L Secondary PRT Probe
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Secondary PRT probe for precise temperature measurement, ideal for calibration work and industrial process control applications.
Product details
| Model | 5618B-12-L |
| Manufacturer | Fluke |
| Category | Temperature Probes & Sensors |
| Availability | Made to order |
Description
Overview
The Fluke 5618B-12-L is a secondary Platinum Resistance Thermometer (PRT) probe designed for precision temperature measurement and calibration applications. Secondary PRT probes function as reference standards in laboratory and industrial settings where accurate temperature measurement is essential for equipment verification and process control.
This probe is part of Fluke's temperature measurement equipment family and is widely used by calibration technicians, quality assurance professionals, and process control engineers.
Key Features
- Platinum Resistance Thermometer (PRT) technology for high-precision measurement
- Secondary standard classification suitable for calibration and reference applications
- Stable and repeatable performance in laboratory and industrial environments
- Compatible with Fluke calibration systems and precision thermometers
Applications
- Calibration of temperature measurement instruments
- Laboratory temperature reference standards
- Industrial process control verification
- Equipment qualification and validation work
Specifications
| Sensor Type | Platinum Resistance Thermometer (PRT) |
| Resistance at 0°C | Nominal 100 Ω |
| Temperature Coefficient | 0.003923 Ω/Ω/°C |
| Temperature Range | -200°C to 500°C |
| Probe Length | 305 mm (12 in) |
| Sheath Diameter | 3.2 mm (0.125 in) |
| Sheath Material | 316 Stainless Steel |
| Lead Wire | 22 AWG Teflon-insulated, 6 ft |
| Stability/Drift Rate | ±0.1°C when used periodically to 500°C |
| Hysteresis | Less than 0.01°C |
| Time Constant | 9 seconds maximum (63.2%) |
| Thermal EMF | Less than 25 mV at 420°C |
| Calibration Standard | NVLAP-accredited, ITS-90, -200°C to 500°C |
| Termination Type | Mini spade lugs |
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Fluke 5618B-12-L Secondary PRT Probe
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