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Precision RTD Freezer Probe Fluke 5623B Inconel 152mm -100C to 156C
Description
The high-precision Precision RTD Freezer Probe Fluke 5623B Inconel 152mm -100C to 156C is specially engineered to prevent moisture ingress when exposed to extreme low-temperature environments down to -100 °C. Featuring a robust Inconel 600 sheath (152 mm length, 6.35 mm diameter) and a 6.1-meter fully immersible cable, the Fluke 5623B P/RTD allows the entire assembly to withstand harsh conditions across its full operating range. This secondary reference platinum resistance thermometer delivers outstanding measurement precision with a calibrated accuracy of ±0.05 °C over the entire range, making it ideal for verifying freezers, autoclaves, and liquid calibration baths.
Application field
Applications and scenarios:
- Validation and temperature calibration of ultra-low temperature freezers and biological storage units
- Thermal verification of autoclaves and sterilization equipment where thermo-wells are absent
- Secondary standard reference measurements in liquid calibration baths and metrology labs
- Field testing with Fluke 1523, 1524, 1502A, 1529, and 1560 thermometer readouts
Specifications
| Parameter | Value |
| Temperature Range | -100 °C to 156 °C |
| Nominal Resistance at 0 °C | 100 Ω ± 0.1 Ω |
| Temperature Coefficient | 0.003925 Ω/Ω/°C nominal |
| Calibrated Accuracy (k=2) | ±0.05 °C over full range |
| Maximum Annual Drift Rate | ±0.01 °C at 0 °C |
| Sheath Material & Dimensions | Inconel 600 / 152 mm L x 6.35 mm dia. (6 x 0.25 in) |
| Cable Type & Length | PTFE-insulated stranded silver-plated copper / 6.1 m (20 ft) |
| Immersion Capability | Fully immersible assembly and cable (-100 °C to 156 °C) |
| Calibration Included | NVLAP accredited calibration report with ITS-90 coefficients (-80 °C to 156 °C) |
Package contents
- Precision RTD Freezer Probe Fluke 5623B
- Accredited calibration report with ITS-90 coefficients
- User documentation