The Fluke 2600A-101 is a precision four-wire, 100 Ohm SPRT (Secondary Platinium Resistance Thermometer) probe that have been designed and tested to meet the precision required as a secondary reference standard.
| General Specifications |
| Use Temperature | 200 °C to 660 °C |
| Stability | Typical draft < 0.01°C after 100 times from 25 to 660 °C |
| Calibrated Accuracy | | Temperature | Uncertainty | | - 183°C | +/- 0.01°C | | 0°C | +/- 0.007°C | | 200°C | +/- 0.024°C | | 420°C | +/- 0.033°C | | 660 °C | +/- 0.050 °C |
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| Performance Specifications (nominal) | | Ice point resistance: | 100 Ω ± 0.1 Ω | | Alpha value: | 0.00385 ± 0.00001 Ω/Ω/C | | Insulation resistance: | 1000 Meg Ω at 100 Vdc at 20°C | | | 100 Meg Ohms at 100 Vdc at 400°C | | Hysteresis: | 0.01°C Max. using 0, 400°C as the end points | | Self heating: | 0.02°C / mw in well stirred bath | | Thermoelectric voltage: | When tested in an ice bath, with immersion depth from 4 to 10 inches (10 to 25 cm), thermo-electric voltage will not exceed 2 µV | | Time constant: | 9 seconds typical for 63.2% response to step change | | Long term stability: | Stability at 0°C after exposure to upper temperature limits |
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| Dimensions | | Sheath diameter (D): | .25 inches (6.3 mm) | | Length (L): | 12 inches (0.3 m) | | Cable length (Y): | 6 feet (1.83 m) | | Wire: | 22 AWG, Teflon jacketed, rated to 200 C | | Wire terminations: | flying lead; stripped / tinned |
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