Description
(item no. 4395008)
The 5623B, precision “freezer probe,” is specially sealed from the sensing element to the end of the probe cable, preventing ingress of moisture when exposed to temperatures as low as –100 °C. The entire assembly withstands temperatures over its full range (–100 °C to 156 °C), which is ideal for verification of freezers or autoclaves where a thermo-well isn’t available. The 5623B assembly can be fully immersed in fluids when the application may require use in a liquid bath. The 5623B is available in a 6.35 mm (0.25 in) dia. × 125 mm (6 in) long Inconel™ sheath. With accuracy (that includes calibration uncertainty and short-term drift) of ± 0.05 °C over its full range, the 5623B is just right as a secondary standard for calibration of other process sensors.
- Fully immersible probe assembly to –100°C
- NVLAP-accredited calibration, lab code 200706-0, and ITS-90 coefficients included
- Accuracy to ±0.05°C over the full range
SPECIFICATIONS
| Specifications | |
| Resistance | Nominal 100 Ω (± 0.1 Ω) |
| Temperature Coefficient | 0.003925 Ω/Ω/°C nominal |
| Temperature Range | –100 °C to 156 °C |
| Transition Temperature | –100 °C to 156 °C |
| Drift Rate | ± 0.01 °C per year maximum at 0 °C, when used periodically at max temperature |
| Sheath Material | Inconel™ 600 |
| Leads | PTFE-insulated, silver-plated stranded copper, 22 AWG. |
| Termination | Specify. See Models and Accessories. |
| Calibration | Includes manufacturer’s NVLAP-accredited, lab code 200706-0, calibration and table with R vs. T values in 1 °C increments from –80 °C to 156 °C. ITS-90 coefficients included. |
| Calibrated Accuracy† (k=2) | ± 0.05 °C over the full range |
| Cable Length | 6.1 meters (20 ft) |
| Size | 6.35 mm (0.25 in) dia. x 152 mm (6 in) |
| †Includes calibration uncertainty and drift. | |
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