User's Guide Heavy Duty Datalogging Light Meter with PC Interface Model HD450
Introduction Congratulations on your purchase of the Extech HD450 Digital Light Meter. The HD450 measures illuminance in Lux and Foot candles (Fc). The HD450 is a Datalogger and includes a PC interface and WindowsTM compatible software for downloading data. Up to 16,000 readings can be stored on the meter for download to a pc and 99 readings can be stored and viewed directly on the meter‟s LCD display.
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 power button is pressed or if the low battery icon is displayed on the LCD, replace the battery. Auto Power Off (APO) 1. The meter is equipped with an automatic power off (APO) feature that turns the meter off after 20 minutes of inactivity. The icon appears while APO is enabled. 2. To disable the APO feature, simultaneously press and release the RANGE/APO and REC/SETUP buttons.
Maximum (MAX) and Minimum (MIN) Reading Memory The MAX-MIN function allows the meter to store the highest (MAX) and lowest (MIN) readings. 1. Press the MAX-MIN button to activate the feature. “Manu” and “MAX” will appear on the display and the meter will only display the highest reading encountered. 2. Press the MAX-MIN button again. “Manu” and “MIN‟ will appear on the display and the meter will only display the lowest reading encountered. 3.
Clock and Sample Rate Setup In this mode, the ▲ and ▼ arrow buttons will allow adjustment of the selected (flashing) digits. The ◄ and ► buttons will scroll to the next or previous selection. 1. Power the meter, then press and the REC/SETUP and UNITS buttons simultaneously to enter the Setup mode. The hours display will flash. 2. Adjust and step through each selection as needed. 3. Press and hold the REC/SETUP and UNITS buttons simultaneously to exit the Setup mode.
USB PC Interface Description The HD450 meter can be connected to a PC via its USB interface. A USB cable, along with WindowsTM software, is included with the meter. The software allows the user to: Transfer previously stored readings from the meter‟s internal memory to a PC View, plot, analyze, store, and print readings data Remotely control the meter via virtual software buttons Record readings as they are taken. Subsequently, printing, storing, analyzing, etc.
Specifications Range Specifications Units Range Resolution Lux 400.0 0.1 4000 1 40.00k 0.01k 400.0k 0.1k 40.00 0.01 400.0 0.1 4000 1 40.00k 0.01k Foot candles Accuracy ± (5% rdg + 10 digits) ± (10% rdg + 10 digits) ± (5% rdg + 10 digits) ± (10% rdg + 10 digits) Notes: 1. Sensor Calibrated to standard incandescent lamp (color temperature: 2856K) 2. 1Fc = 10.
Maintenance Cleaning The Meter and its sensor can be cleaned with a damp cloth. A mild detergent may be used but avoid solvents, abrasives, and harsh chemicals. Battery Installation / Replacement The battery compartment is located on the back of the meter. The compartment is easily accessed by pressing and sliding the rear battery compartment cover off of the meter in the direction of the arrow.
Warranty FLIR Systems, Inc. warrants this Extech Instruments brand device to be free of defects in parts and workmanship for three years from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department for authorization. Visit the website www.extech.com for contact information.
Garantie FLIR Systems, Inc. garantit que cet appareil Extech Instruments est exempt de défauts matériaux et de fabrication pendant trois ans à partir de la date d’envoi (une garantie limitée de six mois s’applique aux capteurs et aux câbles). Si le renvoi de l’appareil pour réparation devient nécessaire durant ou après la période de garantie, contactez le service client pour autorisation. Pour obtenir les coordonnées, visitez le site Web suivant : www.extech.com.
Garantía FLIR Systems, Inc., garantiza este dispositivo marca Extech Instruments para estar libre de defectos en partes o mano de obra durante tres años a partir de la fecha de embarque (se aplica una garantía limitada de seis meses para cables y sensores). Si fuera necesario regresar el instrumento para servicio durante o después del periodo de garantía, llame al Departamento de Servicio a Clientes para obtener autorización. Visite www.extech.com para Información de contacto.
