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Small Diameter Industrial RTD Fluke 5618B-12 3.2mm -200C to 500C
Description
The high-precision Small Diameter Industrial RTD Fluke 5618B-12 3.2mm -200C to 500C delivers secondary-level reference performance in a compact 3.2 mm (0.125 in) sheath diameter. Designed for applications with shallow immersion depths, the Fluke 5618B SDI RTD reduces stem conduction errors while providing a fast 4-second thermal response time. This professional platinum resistance thermometer features a durable 316 stainless steel sheath, a wide operating range from -200 °C to 500 °C, and individual NVLAP-accredited calibration with ITS-90 coefficients, guaranteeing superior measurement precision for demanding calibration environments.
Application field
Applications and scenarios:
- Calibration of Fluke Calibration 9132 and 9133 infrared blackbody calibrators
- Comparison calibrations in dry-well calibrators and micro-baths
- Precision thermal monitoring in space-constrained industrial process piping
- Reference temperature measurements with Fluke 1523, 1524, 1502A, 1529, and 1560 readouts
Specifications
| Parameter | Value |
| Temperature Range (5615B-12) | -200 °C to 500 °C |
| Nominal Resistance at 0 °C | 100 Ω ± 0.10 Ω |
| Temperature Coefficient | 0.003923 Ω/Ω/°C nominal |
| Calibrated Accuracy (k=2) | ±0.026 °C at -200 °C / ±0.066 °C at 0 °C / ±0.219 °C at 500 °C |
| Drift Rate | ±0.1 °C when used periodically to 500 °C |
| Hysteresis | < 0.01 °C at 0 °C |
| Time Constant (63.2% step response) | 4 seconds maximum in water at 3 fps |
| Sheath Material & Dimensions | 316 Stainless Steel / 305 mm L x 3.2 mm dia. (12 x 1/8 in) |
| Lead-Wire Cable Type & Length | 22 AWG PTFE / 1.83 m (6 ft) |
| Thermal EMF | Less than 25 mV at 420 °C |
| Calibration Included | NVLAP accredited calibration with ITS-90 coefficients |
Package contents
- Small Diameter Industrial RTD Fluke 5618B-12
- Accredited calibration report with ITS-90 coefficients
- User documentation