ISR Spraycool Liquid Cooling Test Chamber 22x21x30 w/ Fluke Hydra DAQ Unit

ISR Spraycool Liquid Cooling Test Chamber 22x21x30 w/ Fluke Hydra DAQ Unit

The ISR (Isothermal Systems Research) Spraycool is a self-contained two-phase liquid spray cooling test chamber designed for thermal testing of electronic components and assemblies. The system directs a controlled spray of dielectric fluid (such as 3M Fluorinert FC-72) onto a device under test mounted inside the insulated chamber, removing heat via phase-change evaporation — a method capable of far higher heat flux removal than conventional air or single-phase liquid cooling. An integrated Fluke Hydra Data Acquisition Unit logs temperature, pressure, and pump data across 14 labeled input channels in real time, making this a complete, self-contained thermal test station.

Specifications & What's Included

• Manufacturer: Isothermal Systems Research (ISR)
• System: Spraycool two-phase liquid spray cooling test chamber
• Chamber interior dimensions: approximately 22 x 21 x 30 inches
• AC Input: 115V, 50/60Hz (IEC inlet on rear panel)
• Pump Power: 24V DC Max (rear panel terminals)
• Fan Speed Control: variable via front-panel rotary knob
• Integrated instrument: Fluke Hydra Data Acquisition Unit (2620A series)
• Data channels: 14 (CH 0–13) — thermocouple inputs for phases 1–4, chamber TC, nozzle temperatures, nozzle pressures (phases 1–3 and backside), chamber pressure, ambient temperature, pump voltage
• Internal heat exchanger with axial cooling fan
• Internal spray nozzle assembly mounted in mirrored aluminum chamber enclosure
• Internal sealed module box housing transformer, relay board, and fluid manifold
• Included accessories: fluid pump, tubing lengths, FC Oil bottle, nozzle fittings, bags of spare connector parts
• Included documentation: Fluke Hydra Data Acquisition Unit manual (2 editions), Fluke Hydra Logger Application Software manual, ISR instruction binder, handwritten configuration notes, ISR correspondence
• Note: a SediGraph 5000D Particle Size Analyzer instruction manual is also included with the lot
• Cabinet mounted on heavy-duty casters for mobility

Applications

ISR's Spraycool technology was developed in the 1990s to address the thermal management demands of high-density electronic assemblies — particularly in military, aerospace, and advanced computing applications where air cooling could not keep pace with heat flux. Two-phase spray cooling works by atomizing a dielectric fluid directly onto heat-generating components; the fluid absorbs heat as it evaporates, then is recirculated. ISR was a pioneer in this technology and their Spraycool systems were used in research institutions, defense electronics labs, and advanced thermal engineering programs. A complete test chamber like this one — with integrated data acquisition logging temperature at multiple thermocouple points alongside nozzle and chamber pressure — is used to characterize the thermal performance of electronic components, circuit boards, and assemblies under controlled spray cooling conditions. Today these systems remain relevant for power electronics thermal research, advanced cooling feasibility studies, and legacy program support where original Spraycool infrastructure is already in place.