EXTECH 407228 User Guide

Ordering Information:

HD400 ............Heavy Duty Light Meter

HD400-NIST ..Heavy Duty Light Meter with Calibration Traceable to NIST

HD450 ............Heavy Duty Datalogging Light Meter

HD450-NIST ..Heavy Duty Datlogging Light Meter with Calibration Traceable to NIST

TR100 ............Tripod for meters with tripod mount feature

Specifications subject to change without notice.
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4/27/12 - R1

Features:

• HD450 Datalogger model automatically stores up to 16,000

readings or manually store/recall up to 99 readings

• Wide range to 40,000Fc or 400,000 Lux

• Cosine and color corrected measurements

• Utilizes precision silicon photo diode and spectral response filter

• Peak mode (10mS) captures highest reading

• Relative mode indicates change in light levels

• Min/Max and Data Hold

• Large backlit LCD display with 40-segment bar graph

• Heavy Duty rugged double molded housing

• Built-in USB port

• Includes light sensor with 3ft (1m) cable and protective cover,

Windows®compatible software with USB cable, hard carrying
case, and 9V battery

Datalogging Model Available

Automatically stores up to 16,000 readings or

manually store/recall up to 99 readings.

Heavy Duty Light Meters

Specifications

Fc Range 40, 400, 4000, 40.00kFc
Lux Range 400, 4000, 40k, 400kLux
Accuracy ±5% rdg
Max Resolution 0.01Fc/0.1Lux
Datalogging (HD450) 16,000 continuous readings; 99 selected readings
PC interface USB
Dimensions 6.7 x 3.1 x 1.6” (170 x 80 x 40mm)
Weight 13.7oz (390g)

Model HD400

Model HD450
Datalogger