Extech Instruments HD300 User's Guide

USER GUIDE Heavy Duty CFM-CMM Thermo-Anemometer With built-in non-contact IR Thermometer and Laser Pointer Model HD300

HD300-EU-EN V2.2 07/13 10 Useful Equations and Conversions AREA equation for rectangular or square ducts Area equa

HD300-EU-EN V2.2 07/13 11 Specifications General Specifications Display Dual Display Multi-function LCD with 9999 counts Measurements Air Velocity

HD300-EU-EN V2.2 07/13 12 Range Specifications Air Velocity Measurements Range Resolution Accuracy (%rdg) m/s (meters per second) 0.40 – 30.00 m/

HD300-EU-EN V2.2 07/13 2 Introduction Congratulations on your purchase of the Extech HD300 CFM Thermo-Anemometer. This handheld meter measures and d

HD300-EU-EN V2.2 07/13 3 Meter Description 1. LED display for Air Velocity, Air Flow, Probe Temperature, and remote surface temperature. Units of m

HD300-EU-EN V2.2 07/13 4 Operation Air Velocity Measurements 1. Connect the sensor to the sensor input jack on top of the meter. 2. Turn ON the me

HD300-EU-EN V2.2 07/13 5 Non-contact IR Surface Temperature Measurements The built-in IR sensor can remotely measure the temperature of just about a

HD300-EU-EN V2.2 07/13 6 MIN-MAX-AVG Recording Modes The HD300 has several MIN-MAX-AVG modes described separately below. MIN-MAX-AVG functions are a

HD300-EU-EN V2.2 07/13 7 Battery Replacement When the battery icon appears on the LCD, the 9V battery must be replaced. 1. The battery compartment

HD300-EU-EN V2.2 07/13 8 IR Theory IR thermometers measure the surface temperature of an object. The meter’s optics sense emitted, reflected, &

HD300-EU-EN V2.2 07/13 9 Thermal Emissivity Table for Common Materials Material Emissivity Material Emissivity Asphalt 0.90 to 0.98 Cloth (black)