Ultra-stable maintenance bath for the triple point of water
The ultra-stable maintenance bath for maintaining the triple point of water is a high-performance measuring device and represents the latest state of the art. Thanks to homogeneity and stability in the mK range, the cells can be kept stable at the triple point and operated.
Our maintenance bath enables you to use water triple point cells for a long time and thus calibrate temperature measuring devices with the highest precision.
Features
- Unique "Vertical Flow Design" (VFD)
- Homogeneity and stability in the mK range
- For up to four water triple point cells
- 500 mm immersion depth
- Cycle function
Find out more about the maintenance bath for water triple point
| 22 liter maintenance bath water triple point (OB-22/2 TPW) | |
| Temperature range | -5 °C to +130 °C |
| Temperature stability (°C) |
±0.002 at 0 °C ±0.005 at 20 °C ±0.002 at 100 °C |
| Temperature uniformity (°C) | ±0.007 at 0 ºC |
| Number of cells | 1 |
| Bath volume | 22 liters |
| 50 liter maintenance bath Water triple point (OB-50/2 TPW) | |
| Temperature range | -5 °C to +130 °C |
| Temperature stability (°C) |
±0.002 at 0 °C ±0.005 at 20 °C ±0.002 at 100 °C |
| Temperature uniformity (°C) | ±0.007 at 0 ºC |
| Number of cells | 4 |
| Bath volume | 50 liters |
Note:
All performance data with liquid KDC 200.05
All performance measurements under controlled ambient conditions (Tambient = 22 °C ± 3 °C)!
Best metrological properties
A special double cylinder design with a unique vertical flow over the entire working volume ensures outstanding and unique performance.On request, the bath can be supplied with an accredited calibration certificate in accordance with ISO/IEC 17025.
Reliability and safety
The maintenance bath is equipped with an over-protection temperature device, an independent safety circuit to prevent frost damage and extensive high-performance thermal insulation. An air-cooled, compressor-based cooling system is also available.An overflow with collection tank and drain valve is located underneath the bath. The bath can be opened from all sides for maintenance purposes.
User-friendliness
The calibration bath has a touchscreen controller with a user-friendly interface, a wide range of setting options and RS-232, USB or network connections. Lockable castors give the maintenance bath mobility.Renowned customers rely on calibration baths from Kambic
Triple point of water
In thermodynamics, the triple point of a substance is the unique combination of temperature and pressure. At the triple point, these can coexist in thermodynamic equilibrium in the solid phase, liquid phase and gas phase. Simplified: The only point at which all three phases (solid, liquid and vapor) can be in equilibrium is the triple point.Our water triple point maintenance baths are high-precision devices that can keep the triple point of water stable. You can operate up to four water triple point cells with the maintenance baths.
By international agreement, a value of 0.01 °C and a partial vapor pressure of 6.1166 mbar have been assigned to the triple point of water. At this point, it is possible to turn the entire substance into steam, water or ice by making arbitrarily small changes in pressure and temperature. Even if the total pressure is well above the triple point of water, provided that the partial pressure of the water vapor is 6.1166 mbar, the system can still be brought to the triple point of water.
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