This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
DESCRIPTION
Whilst heat pipe furnaces offer the ideal environment to melt and freeze ITS-90 Fixed Points the temperature range is limited by fluid that flows inside the pipe. Three zone furnaces can offer wider operating ranges and still meet the requirements for “Optimal Realization of the Defining Points of the ITS-90…” CCT/2000-13. In place of a heat pipe the Model 465 3 Zone High Temperature Furnace uses top and bottom guard heaters to minimise temperature gradients.
This more recent addition to our long-established range of metrology furnaces offers an alternative for those who prefer 3-Zone furnaces to heat pipe technology and need high temperature operation. The three zones create a controlled volume of constant temperature within the furnace in which High-Temperature Fixed Points such as Aluminium, Silver and Copper can be frozen and melted. Because High-Temperature thermometers can be easily contaminated by metallic vapors, great care has been taken to eliminate the use of metals throughout the calibration volume. The cell holder is made of alumina.
A ceramic equalizing block is available comprising a closed ended tube, alumina tubes to house the sensors being compared, and alumina powder to act as an equalizing media.
This 3-Zone Furnace can be used for the realizations of Zinc, Aluminium, Silver, Gold and Copper points, or with an optional equalizing block used for annealing or comparison calibration.
New Features
From our own ongoing experience and customer feedback we have updated the Isotech Furnace Range to deliver the same proven performance and advanced features but with a number of convenience upgrades to make your life easier.
The controllers have now been relocated to the top for easier operation, we now include an SPRT Stand and Cable Tidies to keep your standards safe and Accessory Pods to keep the
furnace tops free from clutter. Our furnaces are programmable to automatically melt and freeze cells and feature both USB and Ethernet interfaces with bright crystal clear displays.
SPECIFICATION
| Technical Feature | Value |
|---|---|
| Model | 465 |
| Temperature Range | 200°C to 1200°C |
| Uncertainty | <1 to 2mK (with cells) |
| Control | 0.1°C Resolution |
| Furnace Depth | 500mm |
| Diameter | 100mm |
| Communications | Included as standard |
| Power | 110Vac 50/60Hz 3kW or 230Vac 50/60Hz 3kW with internal transformer option |
| Dimensions | Height 960mm, Width 600mm, Depth 690mm, Weight 115kg |
| Accessories | 465-04-00 Cell holder assembly, 465-02-06 ceramic equalising block |
| How to order | 465 3 Zone Metrology Furnace |
DOWNLOADS
Three Zone High Temperature Furnace 465
250°C to 1200°C
Ideal for Creating and Maintaining Fixed Points Cells, Indium to Copper. The furnace has been updated with additional features to make operation simpler and safer.
- Widest Operating Range
- Three Zone Control
- Long Plateau Length
We are online and ready to chat to you if you need any advice and support, or if you prefer you can fill out the form below.
Or call +44 01704 543830
Related products
-
Read moreDual and Heat Pipe Furnaces
125°C to 1090°C
Isotech metrology furnaces have more than 35 years of proven use and are widely used by the worlds’ leading NMIs. Our controllers offer extra resolution and allow adjustment to 0.1°C right up to 1090°C. The furnaces have been updated with additional features to make operation simpler and safer. Models 17702, 17705, 17705, and 17707.
-
Read moreLow Temperature Furnace
50°C to 500°C
The Isotech Low Temperature Fixed Point Furnace is designed specifically to realize and maintain the freeze plateaux of Isotech Indium, Tin and Zinc Fixed Point Cells, for calibration of thermometers on the International Temperature Scale of 1990. The furnace has been updated with additional features to make operation simpler and safer.
-
Read moreITS-90 Optimal Fixed Point Cells
156°C to 1084°C
Isotech Ultra Pure-Metal Freezing Point Cells are designed specifically to realise the liquid-solid equilibrium temperatures of certain high-purity metal elements, for calibration of thermometers at the ITS-90 Fixed Points.
-
Read moreMedium Temperature Furnace
50°C to 700°C
The Medium Temperature Furnace is of a three-zone design. In addition to the main temperature controlled-zone, there are guard heaters at the top and bottom of the block. The furnace has been updated with additional features to make operation simpler and safer.
