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 V2.0 11/07 10 Useful Equations and Conversions AREA equation for rectangular or square ducts Area equation

HD300 V2.0 11/07 11 Specifications General Specifications Display Dual Display Multi-function LCD with 9999 counts Measurements Air Velocit

HD300 V2.0 11/07 12 Range Specifications Air Velocity Measurements Range Resolution Accuracy (%rdg) m/s (meters per second) 0.40 – 30.00 m/s 0

HD300 V2.0 11/07 13  Support line (781) 890-7440 Technical support: Extension 200; E-mail: [email protected] Repair & Returns: Extension 210

All Datasheets Cannot Be Modified Without Permission Copyright © Each Manufacturing Company This datasheet has been downloaded from: www.EEworld.c

HD300 V2.0 11/07 2 Introduction Congratulations on your purchase of the Extech HD300 CFM Thermo-Anemometer. This handheld meter measures and displ

HD300 V2.0 11/07 3 Meter Description 1. LED display for Air Velocity, Air Flow, Probe Temperature, and remote surface temperature. Units of measu

HD300 V2.0 11/07 4 Operation Air Velocity Measurements 1. Connect the sensor to the sensor input jack on top of the meter. 2. Turn ON the meter

HD300 V2.0 11/07 5 Non-contact IR Surface Temperature Measurements The built-in IR sensor can remotely measure the temperature of just about any s

HD300 V2.0 11/07 6 MIN-MAX-AVG Recording Modes The HD300 has several MIN-MAX-AVG modes described separately below. MIN-MAX-AVG functions are avail

HD300 V2.0 11/07 7 Battery Replacement When the battery icon appears on the LCD, the 9V battery must be replaced. 1. The battery compartment is l

HD300 V2.0 11/07 8 IR Theory IR thermometers measure the surface temperature of an object. The meter’s optics sense emitted, reflected, & tran

HD300 V2.0 11/07 9 Thermal Emissivity Table for Common Materials Material Emissivity Material Emissivity Asphalt 0.90 to 0.98 Cloth (black) 0.