Coolant Hoses: Coolant delivery hoses are used to connect your temperature chamber or thermal platform to your coolant source, be it a bulk system, a Dewar, or a high pressure cylinder. Sigma offers Vacuum jacketed and Armored hoses for L-N2, as well as hoses for L-C02.

Covers for Thermal Platforms: Platform covers provide worker protection as well as protection for your Device Under Test (DUT). Covers also help provide a more homogenous test environment by reducing the influences of the ambient temperature.  If used with a Nitrogen gas purge covers will also help reduce condensation and frost on the DUT and plate surface. Custom configurations available to your specification. Maximum temperature for clear is 130°C, but because the cover does not rest on the platform working surface, it can be used for higher temperatures for short duration tests.

Hose and Dewar Accessories: Sigma offers the following cryogenic hose accessories to improve safety and usability of Sigma chambers and thermal platforms.

Hold Down Clamp Set: The Hold Down Clamp Set enables you to hold items firmly to the platform, or to hold things to your DUT, like a temperature probe.

Gas Purge Systems for Plates and Chambers: Purge Gas systems are often used to reduce moisture or oxygen content in temperature chambers and thermal platform covers. Reducing moisture allows operation at low temperatures without dew or frost accumulations. Reducing oxygen levels can substantially reduce oxidation at elevated temperatures. The gas used for purging temperature chambers and thermal platform covers is typically nitrogen. However, other gases, such as argon, carbon dioxide, or CDA (compressed dry air) may be used as well. Sigma purge systems provide the mechanism to deliver the purge gas to the thermal workspace at regulated pressure and adjustable flow rates. Sigma purge systems can be used for applications other than temperature chambers and thermal platforms.

Exhaust Options for Thermal Platforms: Sigma offers two options for Thermal Platform exhaust, the Standard Exhaust and the Very Quiet Muffler.  Either can be used to vent exhaust away from the work area, however the Very Quiet Muffler will greatly reduce the noise associated with expanding coolant.

Threaded Holes and Fixturing Plates: Threaded Holes with Stainless Steel Inserts are the most common and popular option for Sigma Systems thermal plates. Available in American standard NC or NF or metric sizes, preinstalled threaded inserts. 

Adapter/Fixturing plates are a 1/4", or thicker, 0001-T6 anodized aluminum plate that can be placed on or affixed to the surface of a platform to allow for easy variability in hole patterns.

Temperature Probes: With Sigma's C4 controller you can add an extra probe that can be used to monitor the temperature in various locations in a chamber or on a plate, or to monitor the temperature of the DUT (Device Under Test). 

Valves, Cryogenic Filters, & Conversions: Sigma offers a number of options to keep your equipment running in peak condition, including replacement valves, filters for the coolant line, and conversions to/from L-N2 <-> L-CO2.

Terminal Block for additional probe attachment: Terminal blocks provide an easy attachment point for a second probe.