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Summary of Contents for Extech Instruments EasyView EA33
- Page 1 User Manual EasyView Light Meter with Memory Model EA33 1.800.561.8187 information@itm.com www. .com...
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Page 2: Meter Description
Introduction Congratulations on your purchase of the Extech EA33 EasyView Light Meter which measures light level (luminance). This device measures up to 99,990 Fc and 999,990 Lux and stores up to 50 readings for easy recall. Careful use of this meter will provide years of reliable service. Meter Description Light measurement display Timer display... -
Page 3: Basic Operation
Basic Operation 1. With the sensor cover in place, press the button to turn the meter on. The meter will perform a short self-test. 2. Remove the and place the sensor in the area to be measured. 3. Press the lux / fc button to select the desired units of measure. 4. - Page 4 MODE 2 Elapsed Timer with Hold In this mode, measurements are made while the countdown timer is running. When the timer reaches zero, the last measurement is held on the display (see diagram). 1. Press the SET key; SEt 01 will display. 2.
- Page 5 MODE 5 - Comparator Mode In this mode the meter compares its measurements to one HIGH and one LOW limit. When the high limit is exceeded, the plus sign appears on the LCD. When the measurement falls below the low limit, the negative sign appears on the LCD.
- Page 6 Luminous Intensity Feature Luminous intensity is the measurement of light from a light source at a known distance from the sensor. The unit of measure is candela (cd). 1. Press the cd/COMP key to begin (for lux measurement) feet (for Fc measurement) will appear. 2.
- Page 7 AUTO POWER OFF Feature To conserve battery life, the EA33 automatically turns off after several minutes. To defeat this feature: 1. Turn the meter OFF. 2. Press and hold the HOLD key while turning the meter ON. 3. The AUTO POWER OFF feature will now be disabled. 4.
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Page 8: Maintenance
Maintenance Cleaning and storage 1. The white plastic sensor dome should be cleaned with a damp cloth when necessary. 2. Store the meter in an area with moderate temperature and humidity (refer to the operating and storage range in the specifications chart earlier in this manual). Battery Replacement When the battery power falls low, the battery symbol will appear on the lower left-hand side of the battery compartment... - Page 9 General Specifications Display Multi-function LCD with a maximum display of 999900 Ranging Autoranging over five ranges Over range indication Spectral response CIE photopic (CIE human eye response curve) Spectral accuracy Cosine response 2%; Cosine corrected for angular incidence of light Measurement Repeatability ±2% Temperature coefficient...
- Page 10 Appendix Typical Light Levels Spectral Sensitivity Light Meter Wavelength in Nonometers EA33-en-GB_v2.5 7/18 1.800.561.8187 information@itm.com www. .com...
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