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Mercury Triple-Point Apparatus
Isotech Mercury Triple-Point Apparatus
 

Product Code: ITL-M-17725
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  • OVERVIEW
  • SPECIFICATIONS
Purpose Designed for Isotech Mercury Cell
Outstanding Convenience and Safety
Liquid Free

The Isotech Model ITL-M-17725 Cryostat is a self-contained, mechanically-refrigerated, system with a main well to house one cell and two auxiliary wells for pre-chilling of thermometers. The cryostat temperature is steplessly adjustable from -36°C to 42°C with scale-divisions of 0.1°C (interpolation possible) and 24 hour stability better than ±0.05°C measured by an SPRT in the well of a Mercury Cell inside the cryostat.

The cryostat has several unique features providing outstanding convenience and safety. The refrigeration system has sufficient capacity to bring a cell to operating temperature in about one hour. At operating temperature, the cooling rate about 1 Kelvin/minute and the heating rate is about 2 Kelvin/minute.

This permits rapid changed to be imposed on the temperature of the cell environment to a void excessive demands on the (low) heat-of-fusion energy of the mercury within the cell.

In addition, all temperature control is accomplished through control of refrigerant flow, providing inherently fail-safe operation. Indicators provided fro the cryostat are "POWER ON" and "COOLING".

The cryostat provides convenient conditions for operating mercury fixed point cells both in heating and in cooling mode.


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Model ITL-M-17725 Apparatus
Temperature Range -36°C to -42°C
Uncertainty 0.22mK
with cell)
Ambient Limits 18°C to 28°C
Plateau Duration 8-12 hour Plateau
Power 750W typical.
208-250 VAC, 50/60Hz
Dimensions H 960mm
W 600mm
D 560mm
Weight 96kg

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