Data Sheet Frequently Asked Questions ? Request a Quote More Links Closed Loop Wind Tunnel Comparison Related Qpedia Articles Why Use Research Quality Instruments? Versatile Laboratory Wind Tunnels Using Flow Visualization for PCB Thermal Design Basic Principles of Wind Tunnels Download Portal CLWT-150™ Closed Loop Wind Tunnel The CLWT-150™ is a precision research wind tunnel designed for testing components, heat sinks, PCBs, and racks or chassis. It is ideal for flow measurement, flow visualization, and thermal resistance measurement at different operation temperatures and air flows. The CLWT-150™ generates airflows from 0 to 4 m/s and supports temperatures between -10°C and +85°C. Its aerodynamically designed duct and advanced flow management ensures consistent airflow within the test section. Temperature regulation is achieved using conventional heaters and optional refrigeration units.To minimize heat loss, the wind tunnel features a double-wall structure with thermal insulation. The test section is also insulated with a Delrin frame, equipped with front and side windows made of heat-resistant multilayer glass for optical access and easy flow visualization.To enhance data collection, the test section features 24 sensor-ports on the front and sides, accommodating different probes such as thermocouples, Pitot tubes, and velocity sensors. Wind tunnel operation can be fully automated with the optional stagePOINT™ technology. Product SpecificationsOverall Dimensions (L x W x H): 356 x 127 x 251 cm (140 x 50 x 99")Test Section Dimensions (L x W x H): 45 x 45 x 45 cm (18 x 18 x 18")Number of Sensor Ports: 24Flow Range: 0 to 4 m/s (0 to 800 ft/min)Flow Uniformity: +/- 1%Temperature Range: -10°C to 85°C (52°F to 185°F)Power: 230VACWeight: 997 kg (2200 lbs)Materials: Aluminum, Delrin, Plexiglas, & Stainless SteelApplicationsHigh Temperature TestingComponent TestingHeat Sink CharacterizationAccurate Sensor CalibrationAerodynamic and Pressure Drop MeasurementMultiple PCB TestingAdditional FeaturesPlexiglas test section allows for optimal flow visualizationLarge test section allows for testing of racksHigh quality flow with very little turbulenceRecirculates air, allowing the air to quickly warm. Elevated temperature testing is a requirement in certain NEBS standards.24 Sensor Ports Product and How To Videos The families of ATS thermal test instruments for the electronics industry. Instrument Product Family HP-97™ Power module for simulating heat-dissipating components ATVS-NxT™ Hot wire anemometer with touch screen PC & up to 32 channels for measuring temperature & velocity ATVS-2020™ Hot wire anemometer with up to 32 channels for measuring temperature & velocity eATVS-8™ Hot wire anemometer with 4 or 8 channels for measuring temperature & velocity HFC-100™ A system for controlling and measuring heat flux up to 1,000 w/cm2 ISD™ Analog hot wire anemometer board for measuring temperature and velocity tvLYT™ High-resolution liquid crystal thermography system for cost-effective temperature measurement PTM-1000™ A transducer for measuring static & differential pressure with 4 to 8 channels CIP-1000™ A controllable isothermal plate system for components & PCB testing TLC-100™ Thermochromic liquid crystal kit for heat mapping studies FCM-100™ Fan characterization module for generating PQ curve for a single fan or fan tray thermVIEW™ High-resolution thermography system with precise temperature accuracy iQ-200™ A single system for A single system for measuring temperature. velocity & pressure measuring temperature. velocity & pressure iFLOW-200™ An automatic system for cold plate characterization DAC-200™ Instrument for outputting analog voltage linearly proportional to air velocity and temperature. FSC-200™ Fan speed controller for automation of thermal testing Portable Anemometer Portable vane anemometer for measuring air flow speed & volumetric flow rate iQx-100™ A single system for measuring temperature velocity, pressure & humidity Closed Loop Wind Tunnels Thermally characterize components, boards and heat sinks undera range of air flows and temperature. Open Loop Wind Tunnels Thermally characterize components, boards and heat sinks undera range of air flows.
