Extech Instruments 450 Betriebsanweisung

User's Guide Heavy Duty Datalogging Light Meter with PC Interface Model HD450

HD450-EU-EN V1.5 07/13 2 Introduction Congratulations on your purchase of the Extech HD450 Digital Light Meter. The HD450 measures illuminance in L

HD450-EU-EN V1.5 07/13 3 Operation Meter Power 1. Press the Power button to turn the meter ON or OFF 2. If the meter does not switch on when the

HD450-EU-EN V1.5 07/13 4 Maximum (MAX) and Minimum (MIN) Reading Memory The MAX-MIN function allows the meter to store the highest (MAX) and lowest

HD450-EU-EN V1.5 07/13 5 Clock and Sample Rate Setup In this mode, the ▲ and ▼ arrow buttons will allow adjustment of the selected (flashing) digit

HD450-EU-EN V1.5 07/13 6 USB PC Interface Description The HD450 meter can be connected to a PC via its USB interface. A USB cable, along with Windo

HD450-EU-EN V1.5 07/13 7 Specifications Range Specifications Units Range Resolution Accuracy 400.0 0.1 4000 1 ± (5% rdg + 10 digits) 40.00k 0.01k

HD450-EU-EN V1.5 07/13 8 Maintenance Cleaning The Meter and its sensor can be cleaned with a damp cloth. A mild detergent may be used but avoid sol