Alnor Velometer Thermal Anemometers

Low-velocity airflow plays a critical role in comfort, cleanliness, and process outcomes. Alnor Velometer thermal anemometers are designed to capture these subtle flows with clarity, helping teams see what is happening in ducts, at diffusers, and around equipment where precision matters.

Measurement capabilities:

• Hot-wire sensing: Sensitive to changes at low velocities, revealing direction and magnitude in places vanes cannot reach.
• Multi-parameter options: Many configurations include temperature measurement to support density corrections and comfort diagnostics.
• Fast response and statistics: Track fluctuations, capture min/max/avg, and stabilize readings for actionable decisions.

Where Velometer excels:

• Controlled spaces: Verify laminar flow over work surfaces, check unidirectional flow in clean areas, and monitor low-flow setpoints.
• Diffusers and grilles: Map velocity profiles around critical outlets to understand distribution and comfort implications.
• Process-adjacent measurements: Inspect airflow near equipment, enclosures, and localized exhaust points to support quality goals.
• Duct investigations: Probe small ducts and bypasses where low velocities and tight access require slender sensors.

Workflow and usability:

• Slim probes: Reach into tight or obstructed locations with minimal disturbance to the flow field.
• Clear UI and calculations: Derived volume flow and density options reduce manual math and help standardize methods.
• Data capture: Logging and export streamline documentation for commissioning, maintenance, and audit records.
• Field durability: Robust instrument housings and protective cases support repeated use in plant environments.

Best practices for consistent results:

• Align the probe correctly with the flow direction; use small, controlled movements to map profiles.
• Allow readings to stabilize and apply averaging to account for turbulence.
• Record temperature and relevant duct dimensions for accurate derived volume flow.
• Combine with micromanometers or capture hoods when broader system diagnostics are needed.

Benefits for industrial facilities:

• Clearer insight into low-velocity behavior supports better balancing and fine-tuned comfort.
• Enhanced troubleshooting reduces time spent isolating root causes of drafts, imbalances, or weak capture.
• Documented measurements support internal standards and external audits related to ventilation performance.

TSI support:
Calibration services help maintain traceability. Application guidance assists with probe selection, measurement methods, and integration into facility SOPs.

Gain visibility into the airflow that is easy to miss but important to control. Contact TSI to configure an Alnor Velometer kit that matches your measurement range and reporting needs.