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Mercury Triple-Point Apparatus
Isotech Mercury Triple-Point Apparatus
 
Temperature Range: -42C to -36C (-32F)
  • Uncertainty: 0.22mK (with cell)
  • Control: 0.01C resolution
  • Ambient Limits: 18C to 28C
  • Purpose-designed for the Isotech Mercury Cell
  • Liquid-free

Product Code: ITL-M-17725
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   Product Description    Specifications
 
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 thermometers. The cryostat temperature is steplessly adjustable from -36C to 42C with scale-divisions of 0.1C (interpolation possible), and 24 hour stability better than 0.05C 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 is about 1 Kelvin/minute, and the heating rate is about 2 Kelvin/minute.

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

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

The Isotech cryostat machine provides convenient conditions for operating mercury fixed-point cells both in heating and in cooling mode. Laboratories everywhere use this Isotech cryostat machine to realise the triple point of mercury.

Literature
Mercury Triple Point Apparatus Datasheet Mercury Triple Point Apparatus Manual