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Summary of Contents for Sper scientific 840021
- Page 1 Light Meter (Foot Candles) 840021...
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Page 2: Table Of Contents
Sper Scientific. TABLE OF CONTENTS INTRODUCTION ........3 PANEL DESCRIPTION . -
Page 3: Introduction
The sensor’s exclusive photo diode and color correction filter meets the C.I.E. photopic spectrum. Sper Scientific light meters are cosine corrected for a quick and accurate response. Large easily legible 4 digit LCD. The meter has an external zero adjustment, data hold, low-battery indicator, and a moisture resistant front panel. -
Page 4: Measurement Procedures
MEASUREMENT PROCEDURES 1. Insert the SENSOR plug into the SENSOR INPUT socket. 2. Turn the meter on using the ON button. 3. Remove the lens cap from the PHOTO SENSOR. 4. Press the 200 RANGE button for measurements of 0 ~ 199.9 FC, or select the 2000 RANGE button for measurements of 200 ~ 1999.9 FC. -
Page 5: Zero Adjustment & Calibration
“00.0” appears on the LCD. 5. To maintain accuracy, annual laboratory calibration is recommended. For calibration service, contact SPER SCIENTIFIC. 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. -
Page 6: Specifications
SPECIFICATIONS Unit of Range Resolution Accuracy Measure 200 Range = 0 ~ 199.9 Foot ±5% + 4 digits Candle 2000 Range = 200 ~ 1999 Electronic Specifications (23 ± 5°C): Tested under the environment RF Field Strength less than 3 V/M, and frequency less than the 30 MHz only. Display Maximum reading 1999 Overload... -
Page 7: Light Spectrum Chart
LIGHT SPECTRUM CHART SPER... -
Page 8: Warranty
WARRANTY Sper Scientific warrants this product against defects in materials and workmanship for a period of five (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.
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