9210 Mini Triple Point of Water Maintenance Apparatus
The triple point of water (0.01 °C) is one of the most important temperatures on the ITS-90.
Inexpensive, easy-to-use fixed-point maintenance apparatus
- Easy preprogrammed realization
- Inexpensive fixed-point solution
- Training takes a few hours
If the reason you don’t use fixed-point cells is because they’re too expensive or too difficult to use, you haven’t heard of Fluke Calibration's mini fixed-point apparatus.
The triple point of water (0.01 °C) is one of the most important temperatures on the ITS-90.
Unfortunately, realizing and maintaining triple point of water cells hasn’t always been convenient or cost-effective.
Because ITS-90 calibrations require frequent measurements at the triple point of water, and because the triple point of water is often used as a statistical check against the drift of a temperature standard, it is important to be able to realize and maintain well-constructed triple point of water cells easily.
The Fluke Calibration 9210 TPW Maintenance Apparatus provides built-in programming for the simple supercool-and-shake realization and maintenance of our 5901B Mini TPW Cell. Simply insert the cell, enter the “freeze" mode through the front-panel buttons, have your morning cup of coffee, and when the 9210 audibly alerts you, remove the Mini TPW Cell and give it a shake to initiate freezing a portion of the water. Re-insert the cell, change the program mode to “maintain," and you’ve got 0.01 °C for the rest of the day with uncertainty of only ±0.0005 °C.
Precision-machined thermal blocks can also be used to take advantage of the excellent stability and uniformity of the 9210 for performing comparison calibrations. Multi-hole and custom blocks are available with 178 mm (7 in) depths.
Specifications |
|
| Temperature Range | –10 °C to 125 °C |
| Ambient Operating Range | 5 °C to 45 °C |
| Stability | ±0.02 °C |
| Vertical Gradient | ±0.05 °C over 100 mm at 0 °C |
| Plateau Duration | 6–10 hours, typical |
| Resolution | 0.01 ° (0.001 ° in program mode) |
| Display Scale | °C or °F, switchable |
| Immersion Depth | 171 mm (6.75 in) in optional comparison block |
| Stabilization Time | 15 minutes nominal |
| Preheat Wells | 3 wells (for 3.18, 6.35, or 7.01 mm probes [0.125, 0.25, 0.276 in]) |
| Fault Protection | Adjustable software cutout using control probe; separate circuit thermocouple cutout for maximum instrument temperature |
| Display Accuracy | ±0.25 °C |
| Comparison Block | Three multi-hole blocks, blanks, and custom blocks available |
| Well-to-Well Gradient (in comparison block) |
±0.02 °C |
| Heating Time | Ambient to 100 °C: 45 min. |
| Cooling Time | Ambient to –5 °C: 25 min. |
| Comm. | RS-232 included |
| Power Requirements | 115 VAC (±10 %), 60 Hz, 1.5 A, or 230 VAC (±10 %), 50 Hz, 0.75 A, 170 W |
| Exterior Dimensions (HxWxD) | 489 x 222 x 260 mm (19.25 x 8.75 x 10.25 in) |
| Weight | 7 kg (15.5 lb.) with block |
Model Name |
Description |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9210 | TPW (5901B-G) Maintenance Apparatus
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| 5901B-G | Mini TPW Cell | ||||||||||||||||
| 1904-TPW | Accredited Cell Intercomparison |
