Pressure tester VelociCalc® Pro Multi-function Ventilation Meter 9650

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The VelociCalc® Meter Model 9650 is used to measure HVAC system pressures and can be connected to pitot probes for performing duct traverses. It’s ergonomic design includes a probe holder and integrated magnets allowing for attachment to exposed ductwork or other metallic surfaces for hands-free operation. It's designed to work with a wide range of plug-in probes for measuring air velocities or IAQ parameters. In addition, it includes built-in workflows for calculating the % of outside air when used with an IAQ probe, heat flow calculations for testing heating and cooling coils and grid guided duct traverse methodologies. APPLICATIONS: HVAC testing and balancing Clean room testing Biological safety cabinet and laboratory fume hood testing HVAC commissioning and troubleshooting IAQ investigations Ventilation effectiveness with percent outside air calculation FEATURES AND BENEFITS: Large, high-resolution color display Intuitive menu structure allows for ease of use and setup Optional smart plug-in probes, including thermoanemometer, rotating vane and CO2 probes with calibration certificates Input for K-alloy thermocouple User-customizable soft keys for quick access to common functions Calculate the percentage of outdoor air with IAQ probe Integrated magnets for hands-free operation Multiple languages Air density compensation with on board barometric pressure sensor and temperature input Static and differential pressure measurement Pitot probe duct traverse Programmable K-factors Step by step guided workflows: Heat flow calculations in BTU/hr or kW, % of outdoor air Duct traverse grid measurements for ASHRAE 111 log-Tchebycheff/equal area, EN 12599/16211