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HTSPRT Model 96178 Iss.06 – 03/11
OPERATING INSTRUCTIONS
INTRODUCTION
You or your company has just paid a considerable sum of money to purchase this 96178.
Although the materials to make the 96178 are very costly, it has also taken up to 1000 hours to prepare the 96178 for
your use.
It is not a product that can be assembled, tested and sold; it is produced, calibrated, aged and re-calibrated, until its
characteristics are stable enough to meet the exacting needs of ITS 90.
The weeks of work that go into its production make each 96178 more than another product. Each 96178 already has
a character and a history before it leaves us. Please look after it. Regard yourself as its custodian rather than its
owner.
1.
Always keep the 96178 in its case when not in use.
2.
When in use, support the handle.
3.
Cool and store the 96178 in the same place as you normally use it.
4.
Each time before you use the 96178 clean off all traces of grease by using a chlorinated solvent.
5.
Even go so far as using gloves to handle the 96178, and keep the gloves clean.
6.
Quartz is glass. It is a supercooled liquid. At 800 C and above, your 96178 will bend and bow if you do not
support it along its complete length. At high temperatures I recommend that the 96178 be housed inside a
close fitting recrystallised Alumina closed ended tube, which has been pre-fired to 1000 C, or better still a
silicon carbide tube.
7.
Quartz is transparent in two senses of the word. At temperatures above 700 C metallic vapours can pass
through the quartz and attack the pure platinum sensing element. Isotech have developed a product which
can be attached to the 96178 to prevent this happening to a 960 Ioniser. A Model 960 Ioniser is provided
free with each 96178.
8.
If you have purchased the „Open‟ version of the 96178, open the valve at high temperatures and close it
before bringing the 96178 down to room temperature. This will ensure that no moisture builds up inside the
thermometer.
RETURNING YOUR THERMOMETER TO ISOTECH
Due to the fragility of the 96178 we strongly recommend that this is not transported unless personally hand carried.
In the event that the unit must be shipped by courier then the following instructions must be adhered to and
reference to diagram on page 12.
