Cryostats
Cryostats are devices that store liquids at cryogenic devices. They actively cool their content, making them different than dewars. For the purposes of the HLM project, cryostats usually store liquid Helium.
The Cryostat class has a position type of 2.
An example of a cryostat:
A cryostat's content is measured in liquid litres.
The Cryostat object class has two object types by default: the Cryostat default and Magnet default.
They both have an OT_VOLUME value of 0.
| Control | Value to Set |
|---|---|
| Name | The DH Name from the front of the LAN-XBEE box, combined with other appropriate naming information |
| Comment | Whatever notes are deemed necessary |
| Address | (XBee) This is listed on a sticker on the more recent devices |
| Category | Select from the drop down, or see the notes below |
| Channel Checkboxes | Set this to selected only for Channel 1 |
| Gas | He |
| Span | Start with 0.1, if the current level is known, or once a level is known, calculate what the Span should be using the following equation: displayed value = (Span x read value) + Zero |
| Zero | Generally leave at 0, this is the 0 point to provide an offset to the equation detailed alongside Span |
Check the list of categories, if you need a category that is not listed there are various options, creating a new category should work, although to access for later additions may need to close the screen, if not the whole HeliumManagement software to see it added to the list. If this does not work they need to be added manually to the database. Save when all information is correct for a cryostat.