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Product Details
The VelociCalc Pro Multi-Function Ventilation Meter 9650 is a multi-function ventilation test instrument for comprehensive HVAC and indoor air quality measurement. It measures air velocity, volumetric flow, temperature, and relative humidity through a wide range of smart plug-in probes, plus static and differential pressure and pitot probe duct traverses directly at the meter. Its ergonomic design includes a probe holder and integrated magnets that allow attachment to exposed ductwork, chemical fume hoods, and biological safety cabinet frames for hands-free operation.The 9650 calculates the percentage of outside air when used with an IAQ probe, and includes built-in workflows for heat flow calculations when testing heating and cooling coils and for grid-guided duct traverse using ASHRAE 111 log-Tchebycheff, ASHRAE 111 equal area, EN 12599, and EN 16211 methods.
The included Thermoanemometer Articulated Probe 966 hot-wire anemometer measures air velocity, temperature, and relative humidity, and its articulated, telescoping design reaches confined spaces such as diffusers, grilles, and ducts.
The high-resolution color display and modern user interface show multiple measurements at once, with intuitive navigation and user-customizable soft keys, and Bluetooth connectivity supports printing, app integration and reporting..
The ISO/IEC 17025 accredited calibration provides documented measurement traceability to recognized standards, supporting compliance requirements in regulated laboratories, cleanrooms, pharmaceutical facilities, and other critical environments.
Applications
- HVAC testing and balancing
- Clean room testing
- Biological safety cabinet and laboratory fume hood testing
- HVAC commissioning and troubleshooting
- IAQ investigations
- Heat flow testing of heating and cooling coils
- Ventilation effectiveness with percent outside air calculation
Kit includes: 9650 meter, Thermoanemometer Articulated Probe 966 hot-wire anemometer, wrist strap, static pressure probe, 8 ft (2.4 m) tubing, carrying case, (4) AA alkaline batteries, USB cable, manual, and ISO/IEC 17025 accredited calibration certificate.
Optional probes: 792, 794, 960, 962, 964, 966, 980, 982, 984, 985, 986, 987, 995, 800220, and PAN231 (Duct Leakage Detector).
Note: For ISO/IEC 17025 accredited services, TSI uses a documented decision rule for measurement uncertainty in conformity assessments. Refer to TSI documentation for details.
FEATURES & BENEFITS
- ISO/IEC 17025 accredited calibration on both meter and probe
- Traceable, documented results to support audits and compliance requirements
- Thermoanemometer Articulated Probe 966 hot-wire anemometer measures air velocity, temperature, and relative humidity
- High-resolution color display with modern user interface
- Intuitive menu structure for ease of use and setup
- Static and differential pressure measurement
- Pitot probe duct traverse with programmable K-factors
- Percent outside air calculation, plus built-in heat flow and grid-guided duct traverse workflows
- Grid-guided duct traverse supports ASHRAE 111 log-Tchebycheff, ASHRAE 111 equal area, EN 12599, and EN 16211
- Air density compensation with onboard barometric pressure sensor and temperature input
- Input for one K-alloy thermocouple
- Bluetooth connectivity for printing, app integration and reporting
- Optional smart plug-in probes, including thermoanemometer, rotating vane, CO2, and IAQ probes with calibration certificates
- Integrated magnets for hands-free operation
- Supports multiple languages
- Straight-probe accredited version available (AC9650-964); non-accredited version available (9650-966)