Contents I. Preface…………………………………………………1 II. Safety instructions............1 III. LCD display introduction......…..…..1 IV. Functional characteristics description..…...…..2 V. Specifications ……………………………..…..…..2 VI. Preparations before use ......……..3 VII. Basic usage methods……………………..…..…..….4 VIII. Calibrate sound level meter………………..……….5 IX. Notes…………………………………..…..………….5...
I. Preface Thank you for using our product. Please read the operating manual carefully before using the product. The Sound Level Meter is an instrument used to measure the ambient sound level, such as sound level around factories, workshops, schools, residential, offices, road, audio etc. It also can be appropriate for noise engineering, product quality control, health prevention and treatment, etc.
Display Description Display Description symbols symbols FAST High speed OVER Over flow SLOW Low speed A weighting mode HOLD Keep C weighting mode UNDER Below Decibel Maximum SONE Sound unit (sone) Minimum Battery power IV. Functional characteristics description ● This sound level meter complies with IEC651 Type 2 and ANSI S1.4 Type 2.
● Digital display, good anti-interference performance, power saving ● With the backlight feature, it is appropriate for gathering the sound data at night. To save power, backlight auto power off function is provided. ● Composite material injection molding process is adopted for casing with anti-drop structure design.
● Automatic shifting gear level: microcomputer will automatically select the best gear level in the range from 30 to 130 dB. ● Below or above limit prompt: indicated with “UNDER” or “OVER” display. ● Power supply: 4 x 7 batteries of 1.5V each ●...
measurement value is not accurate, you should click Up and Down key to set the measurement gear level of the instrument to get accurate measurement value. 2. Setting measurement gear level: Press the Level▲ or ▼ keys to select appropriate gear level to measure the current sound level, when the “UNDER”...
level meter should be calibrated. Usually it should be calibrated once a year. Standard sound source is required for calibration. Please contact our company for specific method. IX. Notes 1. Do not use the meter in hot, humid environment. 2. If the meter is not to be used for a long time, remove the batteries to avoid electrolyte leakage damaging the instrument.
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