Intruduction:
The Sound Level Meter is versatile device for measuring sound intensity in an acoustic envieronment-lound or soft; high pitched, low-pitched, or Broad-band; inter-mittent or continuous, This meter can be used in measuring noise of various occasions and addpiances such as factory, office, home, traffic route, acoustics, air-conditior refrigerator, etc....
1. Before use, pls check the Instruction first! The Sound Level Meter is supplied with the follwing accessories, if lack of accessories, pls contact with us in time! | |||
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2. Features and Functions:
1). Accuracty: +-1.5dB ( In Standard sound: 94dB@1KHz
2). Range of Measurement: 30~130dB
3). Frequency Response Range: 31.5Hz~8.5KHz
4).Frequency Weighting:A (Ambient Noise) Weighting
5). Response: Fast
6). Connecting computer with USB cable, you can down-load records, collect samples and print chart and date.(Only for model 525B)
Technical Parameters
Meter Description:
1). Hooks
2). USB outlet
3). Alarm Light
4). Microphone Sensor
5). Display:Three 3 inch dightal tube display to display sound Level value
6). Tripod Mounting Screw:1/4", the meter can be mounted on a tripod with this hole
7). Audio Outlet: when there is an alarm with 2KHz Signal, it can drive the loudspeaker to alarm
8). Calibration Knob. The meter has been calibrated before ex factory. Do not adjust the meter
9). Buttons
3. Technical Parameters:
4. Attached A: The volume Reference
5. Note and Warning:
1). Do not use meter in high temperature and high humidity environment
2). Do not use meer near corrosive material
3). Do not use meter in the conditions that should be splashed by water
4). Do not use meter in heavy dust enveronment
5).Do not use meter in an environment with chemical gas.
6. USE instructions:
1). Measure Noise
Pls press buttom" Button 1"to start up, wait 2 seconds into measuring condition, display the noise levels in display screen.
7. Instrument Alarm
A. Alarm Switch
Turn on alarm function by defaut when start the meter. Press " Button No.4 " to turn off alarm and the red light off;
Press " Button No.4 " to turn on alarm and the red light on.
B. Setting Alarm Value
The default alarm value s 130. Users can adjust it from 50 to 130dB
1) Press button " Button No.4 " for a while into alarm setting, then display alarm value and the red lights blinks
2) Press button " Button No.3,2 " to adjust the alarm value and press button" Button No.3,2 " for a while to set up continuously!
3) Press button " Button No.4 " to save alarm value or press power switch shortly to cancel setting to normal measuring condition
3. Alarm Function (Sound + display)
when the measuring value is over the alarm value, the meter will make a sound beeping and lock the data with blinking for 2 minutes.
after 2 minutes ir or press any key, the meter stops alarming and blinking, bt also locks the measure date for 5 seconds.
After 5 seconds, the meter return to normal measurement, Notes: if the measuring value is over the alarm value again when it is back to
Normal measurement, the Sound Level Meter would alarm once again
