Introduction; Applications; Feature - Amprobe TMA-21HW User Manual

INTRODUCTION

The TMA-21HW Portable Air Velocity Meter is a lightweight versatile
instrument that can be used anywhere to measure air velocity,
temperature, and relative humidity. It can also calculate the volumetric
flow rate, dew point temperature, wet bulb temperature, wind chill
temperature, humidex temperature and Heat index temperature. The
meter uses a telescoping probe. Applications include hood velocity, clean
rooms, OSHA compliance, ventilation ducts and outlets, heating and air –
conditioning, wind tunnels, product development, air – flow research and
mass – flow measurement in ducts.

Applications

• HVAC system performance
• Commissioning
• Plant maintenance
• Critical environment certification
• Duct traverses

Feature

• Fast response probe.
• Air flow volume.
• Instant / Avg / V max flow measurement.
• Velocity m / s, f t / min, knots, km / hr, mph, Bft.
• Temperature and relative humidity measurement.
• Calculate dew point temperature, wet bulb temperature, wind chill
temperature, humidex temperature and heat index temperature.
• Data hold & Maximum / Minimum / Average function.
• Manual data memory and read function (5x99 sets).
• Auto data memory and read function (5x99 sets).
• LCD triple display.
• Auto power off function ON / OFF Time setting.
• Backlight function ON / OFF Time setting.
• Telescoping probe.
• Simple and safe to use.
• U.S. Pat. No. Des. 446,135
2