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TotalTemp Technologies - RF Caf

TVAC systems increase understanding of how components and materials respond in a Space Simulated Environments.

TotalTemp Technologies VmSD144-N Thermal Platform Vacuum Chamber

TotalTemp Technologies VmSD144-N Thermal Platform Vacuum Chamber

Download the VmSD144−N datasheet.

San Diego, California – September 25, 2023 - TotalTemp Technologies, a worldwide leading provider of research laboratory and production temperature chambers and thermal platform equipment, introduces their model VmSD144−N Thermal Platform Vacuum Chamber. The efficient advantages of thermal platforms are a natural for conductive heat transfer in high vacuum applications. With all the new hardware going into space, where service calls are rare, thermal vacuum testing is an important part of testing high altitude and satellite equipment. Affordable and configurable for your application. Simultaneous high vacuum and thermal testing without renting time at a test lab. Thermal platforms to fit your vacuum chamber or fully turn-key systems. Platform shown inside bell jar is 6.5” x 7.5”, other sizes and different bell jars available.

Aerospace environmental testing in a thermal vacuum chamber allows for the exposing and weeding out potential problems due to extreme temperature and atmospheric pressure changes as experienced in space. With equipment destined for space, the stakes are much higher with the cost of a launch, chances of a failure could be catastrophic plus service calls in space have historically been very costly. The game of basic thermal testing in space is a little different than testing for land-based systems, mainly because the lack of heat transfer by air. The intentional and unintentional transfer of heat by convection makes a big difference from what could be common sense solution in an environment with air. Outgassing of many materials would be another consideration that is not such a big deal on Earth but requires careful planning for items going into space. Making sure that components headed for space are going to perform as planned typically involves simulating the environment as it is expected to be experienced in space or low Earth orbit.


  • Surface Dimensions / Area: 12 x 12 inch (30.5 x 30.5 cm), 144 Sq. Inches (929 sq.cm.)
  • Surface Material / Finish: 6061 Aluminum, No Finish or coating
  • External Dimensions / Max. Height: Cart 30 x 28 x 30 inches (L x W x H), With Bell Jar Approx. 49 inches overall
  • Chassis Material / Finish: Steel Cart / Stainless Steel Chamber, Powder Coat / Mechanically Polished
  • Approximate Weight: 385 lbs. (175 kg), Packed with a Synergy Nano on Pallet
  • Ultimate Pressure: 1x106 Torr, Pump Speed 290 Liters Per Second
  • Temperature Range: -65 to 175°C, Extended Range and Hot Only available
  • Heating Rate: 6 30°C min., Wattages Varies, Wattage can be specified
  • Cooling Rate: 8 30°C min., Coolant can be specified
  • Temperature Controller Options: Synergy Nano Color Touchscreen, Watlow PM6 Alternate Economy Model

Facility Requirement

  • Power: Requirements may vary. Most common heater arrangement requires a dedicated 120 Volt 15 Amp circuit.
  • Coolant: Cryogenic gas suppliers in your area can supply either Nitrogen and Carbon Dioxide to your facility. 

Specify coolant choice and voltage requirement when ordering a Temperature Chamber.

Controller Options and Accessories

The (A) Synergy Nano Benchtop Controller has a Color LCD touch screen – Easy to use, easy to read with graphing capability, logging, multi sensor, multi conditional outputs, comm ready, GPIB Upgradeable and free drivers. More on the Synergy Nano.

The (B) Watlow PM6 is a very robust, economical controller. 

About TotalTemp Technologies

The primary goal for TotalTemp is to maximize the combined 40 years experience we have in this highly specialized field and create a new, alternative, "Next Generation" Thermal Platforms and Temperature Testing equipment. Our Mission is to offer thermal testing equipment that best suits or customers' requirements. For several decades there were only two real manufacturers for thermal platforms. It was no secret that the market demanded a new alternative with better service and lower costs. We heard you loud and clear and TotalTemp is here to fill that need.


TotalTemp Technologies
3630 Hancock Street A
San Diego, CA  92110
Phone:  1-888-712-2228

E-Mail:  Sales@TotalTempTech.com

Web:  www.totaltemptech.com



Posted September 25, 2023

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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

1996 - 2024


Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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