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Summary of Contents for Sper scientific 840020
- Page 1 Light Meter (Lux/FC) 840020...
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Page 2: Table Of Contents
Sper Scientific. TABLE OF CONTENTS INTRODUCTION ........3 PANEL DESCRIPTION . -
Page 3: Introduction
INTRODUCTION Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on the extra large LCD with bar graph, low battery and over range indications. The color and cosine corrected sensor meets C.I.E. photopic spectrum. Also features RS232 computer output, max-min, auto power off, zero adjustment, hold function and a tripod back. -
Page 4: Measurement Procedures
OPERATING INSTRUCTIONS Measurement Procedures 1. Insert the SENSOR plug into the SENSOR INPUT and turn the meter on by pressing the POWER button. 2. Remove the lens cap from the PHOTO SENSOR. 3. Select the desired unit of measure by pressing the LUX/FC button. -
Page 5: Notes & Precautions
RANGE button to select the 40.00 Lux range (digits appear on the LCD). 2. Press the ZERO button and the “0.00 LUX” should be displayed. 3. To maintain accuracy, annual laboratory calibration is recommended and available from Sper Scientific. -
Page 6: Battery Replacement
BATTERY REPLACEMENT 1. Replace the battery when the low battery icon is displayed. 2. In-spec measurements may be made for several hours after the low battery indicator appears. 3. Remove the BATTERY COVER screw and slide the cover off. 4. Replace the battery with a fresh 9V battery (alkaline or heavy duty). RS232 PC SERIAL INTERFACE Use a small screwdriver to gently lift the RS232 COVER up to expose the RS232 OUTPUT 3.5 mm terminal. -
Page 7: Specifications
SPECIFICATIONS Unit of Range In-Range Display Resolution Accuracy Measure ±(3% rdg + 0.5% 40.00 0 to 40,000 0.01 F.S.) 400.0 36.6 to 400.0 4,000 360 to 4,000 40,000 3,600 to 40,000 <100,000 ± (3% rdg + 0.5% F.S.). 400,000 10,000 to 400,000 >100,000 for reference only 4.000... -
Page 8: Warranty
(5) years from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, battery leakage, or damage resulting from accident, tampering, misuse, or abuse of the product.
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