TM 
Scope of Calibration Matrix
Air Flow Calibration
Highly accurate air velocity and flow calibration for HVAC, environmental monitoring, and industrial pneumatic systems, strictly traceable to national standards.
01
Av
Anemometer (Vane / Hot Wire / Ultrasonic) 02
Av
Air Velocity Meter 03
Af
Air Flow Meter 04
Pt
Pitot Tube Manometer 05
Bf
Balometer (Flow Hood) 06
Ha
HVAC Airflow Meter 07
Dp
Differential Pressure Transmitter (Air) 08
Tm
Thermal Mass Flow Meter (Air) 09
Ra
Rotameter (Air) 10
Vf
Vortex Flow Meter (Air) 11
Va
Variable Area Flow Meter 12
Dv
Duct Velocity Probe 13
Af
Air Flow Calibrator 14
Lf
Laminar Flow Hood Velocity Meter 15
Sr
Spirometer (Respiratory Flow) 16
Pf
Peak Flow Meter 17
As
Air Sampling Pump 18
Pc
Particle Counter (Air) 19
Pf
Pneumatic Flow Controller 20
Pm
Purge Meter System Standby
NEX-OS V2.5
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Compliance Standard --
Traceability Hierarchy
National Physical Laboratory (NPL)