TSI VelociCalc® Multi-Parameter Air Velocity Meter Model 9565/9565A/9565P/9565X
| Brand | TSI |
|---|---|
| Origin | USA |
| Model | 9565 / 9565A / 9565P / 9565X |
| Temperature Range (964/966/980/982 probes) | −10 to 60 °C, ±0.3 °C accuracy |
| Temperature Range (960/962 probes) | −18 to 93 °C, ±0.3 °C accuracy |
| Temperature Range (995 vane probe) | 0 to 60 °C, ±0.1 °C accuracy |
| Air Velocity Range (960/962) | 0–50 m/s, ±3% of reading or ±0.015 m/s (whichever is greater), 0.01 m/s resolution |
| Air Velocity Range (995 vane) | 0.25–30 m/s, ±1% of reading or ±0.02 m/s |
| Air Velocity Range (pitot tube) | 31.27–78.7 m/s, ±1.5% at 10.16 m/s |
| CO Range (982 probe) | 0–500 ppm, ±3% of reading or ±3 ppm |
| CO₂ Range (980/982 probes) | 0–5000 ppm, ±3% of reading or ±50 ppm |
| Relative Humidity Range | 0–95% RH, ±3% RH |
| Static/Differential Pressure Range | −28.0 to +28.0 mmHg (−3735 to +3735 Pa), ±1% of reading or ±0.01 mmHg |
| Barometric Pressure Range | 517.15–930.87 mmHg, ±2% of reading |
| Data Storage | 26,500 readings across 100 user-defined data groups |
| Sampling Interval | 1 s to 1 h |
| Operating Temperature | 5–45 °C |
| Dimensions | 9.7 × 21.1 × 5.3 cm |
| Weight (with batteries) | 0.36 kg |
| Power | 4 × AA batteries or optional AC adapter |
Overview
The TSI VelociCalc® Multi-Parameter Air Velocity Meter Series (Models 9565, 9565A, 9565P, and 9565X) is a portable, handheld instrument engineered for comprehensive HVAC system commissioning, indoor air quality (IAQ) assessment, and ventilation performance verification. Based on thermal anemometry (for hot-wire and hot-film probes), vane-wheel rotation (for 995 probe), and NDIR spectroscopy (for CO₂ measurement), the platform delivers simultaneous, real-time quantification of air velocity, temperature, relative humidity, CO, CO₂, static pressure, differential pressure, and barometric pressure. Its modular architecture centers on intelligent, plug-and-play probe interfaces—each containing embedded calibration coefficients and sensor-specific metadata—enabling field-swappable configuration without host recalibration. Designed for compliance with ASHRAE Standard 111, ISO 7726 (Ergonomics of the thermal environment), and ANSI/ASHRAE Standard 62.1 (Ventilation for Acceptable Indoor Air Quality), the VelociCalc® series supports traceable, auditable measurement workflows in commercial building commissioning, laboratory ventilation validation, and cleanroom airflow mapping.
Key Features
- Modular probe ecosystem with factory-calibrated, NIST-traceable sensors—calibration data stored directly in each probe’s memory; only the probe requires return for recalibration.
- Simultaneous display of up to five real-time parameters on a high-contrast, backlit LCD screen with intuitive icon-driven navigation.
- Integrated calculation engine for derived metrics: volumetric airflow (CFM/m³/h), wet-bulb temperature, dew point temperature, thermal comfort indices (e.g., PMV/PPD when paired with appropriate probes), and turbulence intensity.
- Flexible data acquisition modes: manual trigger, timed interval logging (1 s–1 h), and event-based capture—all supporting user-defined group naming and metadata tagging.
- Bluetooth® 4.0 wireless connectivity for direct printing to compatible Bluetooth printers and seamless synchronization with TRAKPRO™ Data Analysis Software and LogDat2™ PC application.
- Rugged, ergonomic housing (9.7 × 21.1 × 5.3 cm; 0.36 kg) rated for continuous operation in ambient temperatures from 5 °C to 45 °C and storage down to −20 °C.
Sample Compatibility & Compliance
The VelociCalc® platform accommodates over ten interchangeable probe types—including thermal anemometer (960, 962, 964, 966), vane anemometer (995), surface temperature (792), air temperature (794), and IAQ probes (980, 982)—each certified to relevant international standards. The 982 probe complies with UL 2075 (Carbon Monoxide and Carbon Dioxide Detectors) and meets EN 50291-1 requirements for CO sensing. CO₂ measurements adhere to ISO 8573-4 for compressed air purity classification methodology where applicable. All pressure measurements conform to ASME B40.200 for analog and digital pressure gauges. The instrument’s firmware and data handling architecture support audit-ready documentation per GLP and GMP environments, including time-stamped, tamper-evident data logs compatible with FDA 21 CFR Part 11-compliant systems when used with validated software configurations.
Software & Data Management
TRAKPRO™ Software provides post-processing visualization, statistical analysis (min/max/avg/std dev), custom report generation (PDF/CSV/XLSX), and overlay comparison of multiple datasets. LogDat2™ enables real-time remote monitoring via USB or Bluetooth, configurable alarm thresholds, and automated export to enterprise LIMS or CMMS platforms. Both applications maintain full traceability: every recorded value includes probe serial number, calibration expiration date, operator ID (user-definable), and environmental context tags. Data files are digitally signed and include SHA-256 checksums to ensure integrity during transfer and archival—critical for ISO/IEC 17025-accredited laboratories and third-party commissioning reports.
Applications
- HVAC duct traverse testing and airflow balancing per ASHRAE Guideline 12 and NEBB Procedural Standards.
- Lab hood face velocity validation and containment assessment under ANSI/AIHA Z9.5 and EN 14175.
- Room air distribution analysis—including throw distance, induction ratio, and mixing efficiency—in healthcare, pharmaceutical, and semiconductor facilities.
- Occupied space IAQ surveys measuring CO₂-driven ventilation rate estimation (per ASHRAE 62.1 Appendix A), CO exposure screening, and thermal comfort profiling.
- Filter leakage scanning using differential pressure differentials across filter banks in cleanrooms (ISO 14644-3).
- Commissioning documentation for LEED EQ Credit 1 (Outdoor Air Delivery Monitoring) and WELL Building Standard V03 (Air).
FAQ
How does probe-based calibration work?
Each probe contains non-volatile memory storing its unique calibration coefficients, date, and NIST-traceable certificate. The meter reads this data automatically upon insertion—no manual coefficient entry or host firmware update is required.
Can I use the same probe across different VelociCalc® units?
Yes. Calibration and identification data reside solely in the probe, ensuring interoperability across all 9565-series hosts without reconfiguration.
Is Bluetooth printing supported out-of-the-box?
Yes—models shipped after Q3 2020 include integrated Bluetooth 4.0. Earlier units may require a firmware update via TRAKPRO™ to enable pairing with certified Bluetooth thermal printers.
What pressure ranges are supported for duct static pressure measurement?
The built-in pressure sensor covers −3735 to +3735 Pa (−28.0 to +28.0 mmHg) with ±1% of reading or ±1 Pa accuracy—sufficient for most low- and medium-pressure HVAC applications.
Does the instrument meet FDA 21 CFR Part 11 requirements for electronic records?
While the hardware itself is not individually Part 11-certified, the combination of TRAKPRO™ (v5.1+), secure network deployment, electronic signatures, and audit trail functionality enables compliant implementation within validated quality systems when configured per TSI’s IQ/OQ documentation package.
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