4 IN 1 SOUND LEVEL LIGHT HUMIDITY TEMPERATURE TABLET OF CONTENTS TITLE INTRODUCTION FEATURES SPECIFICATIONS PANEL DESCRIPTION OPERATING INSTRUCTION MAINTENANCE 1. INTRODUCTION Multi-Function Environment Meter The 4 in 1 digital multi- has been designed to combine the functions of Sound Level Meter, Light Meter, Humidity Meter, Temperature Meter .
The Sound Level function can be used to measure noise in factories, schools, offices, airports, home, etc., checking acoustics of studios, auditoriums and hi-fi installations. The Light function is used to measure illuminance in the field. It is fully cosine corrected for the angular incidence of light. The light sensitive component used in the meter is a very Stable, long life silicon diode.
3. SPECIFICATIONS Display: 1999 counts LCD display with function of Lux, C, %RH and dB indication. Polarity: Automatic, (-) negative polarity indication. Over-range: “OL” mark indication. Low battery indication: The “BAT” is displayed when the battery voltage drops below the operating level. Measurement rate: 1.5 times per second, nominal.
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Microphone: Electric condenser microphone. Light Measuring Range:20, 200, 2000, 20,000lux (20,000lux range reading x10) Overrate Display: Highest digit of “1” is displayed. Accuracy: +5% rdg + 10 dgts (calibrated to standard incandescent lamp at color temperature 2856 k ) . Repeatability: + 2%.
PANEL DESCRIPTION LCD display: 3 1/2 digits LCD display with units of Lux, x10 Lux, C, %RH, dB and low battery “BAT” indication. Power / Function / Range Switch: Turn power on (or off) and select measurement function and ranges. Microphone: Electric condenser microphone inside.
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6. Note: Strong wind (over 10m/sec.) striking the microphone can cause misreading for measurement in windy locations, a windscreen should be used in front of microphone. Measuring Light 1. Turn the Power/function/range Switch to select the “lux” scale and set the range to desired (“lux” or “x10 lux”) range. 2.
② Then the display will show the environment temperature reading value ( C/℉) directly. ③Insert the temperature probe into the K-type thermocouple socket. ④ Touch the end of the temperature sensor to the area or surface of the object to be measured. The display will show the temperature reading value ( C/℉) directly.
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