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| Secondary Laboratory | |
| True Temperature Indicator 2 | |
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TTI2 - 1mK True Temperature Indicator |
 From Databook 2 |
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 Data Sheet |
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| If you need the very finest bridge at the Millikelvin accuracy level then the Isotech TTI-2 will delight you. Here are just some of the reasons why TTI-2 is the preferred instrument in many laboratories including Isotech’s Secondary Laboratory. 1. The display shows the true unfiltered single measurement value, not an artificially filtered value which appears stable only due to filtering and averaging of values. 2. There are no preset type controls such as variable resistors in the design, it is completely solid state. Calibration adjustments are software controlled. 3. There are no mechanical relays, so the TTI-2 has increased life and reliability. 4. Simultaneous display of two channels — essential for high quality comparison calibration. 5. In statistics mode, the TTI-2 resolves and averages up to 50 readings of 2 channels simultaneously and present the mean values (Temperature, Resistance or Ratio) to ±0.00001°C resolution as well as giving the standard deviation of the mean value. 6. The TTI-2 uses a single power source which reduces noise effects considerably. 7. Password protection — prevents unauthorized tampering with the Bridge. 8. The Bridge automatically stops and awaits instruction once the standard thermometer has been either over temperatured, or has passed its recalibration date. With an uncertainty of better than 1mK (0.001°C), this temperature indicator is the best of its kind. Based on its use, one German D.K.D. approved laboratory has obtained a calibration schedule with a total uncertainty of 0.5mK at the triple point of water. The TTI-2 can be programmed with up to 10 thermometer characteristics and in Isotech’s Secondary UKAS Laboratory, the TTI-2 is now the main measurement device.
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