KD KDS-1013 User manual

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Sound Level meter (KDS-1013)
A. Precautions;
Please read this operation manual carefully before using this equipment for correct operations.
This equipment have been designed to meet the measurement requirement of safety engineers.,
health, industrial safety offices and sound quality control in various environment.
B. Features;
1) This unit was designed according to the IEC651 type2& ANSSI S1.4 TYPE2 for sound level
meters.
2) Instantaneous sound measure function.
3) Measurement range:30~130 decibel
4) With two equivalent weighted sound pressure levels, A and C
5) Fast&Slow dynamic characteristic modes.
6) Ac and DC signed output for frequency analyzer level recorder, FFT analyzer, graphic
recorder etc.
C. Specifications
1) Accuracy:+/- 1.5DB(under reference condition)
2) Frequency range: 31.5Hz 8.5Hz
3) Linearity range: 50dB
4) Measuring level: 30 130 dBA. 35-130 dBC
5) Frequency weighting: A, C
6) Digital display: 5 digits
Resolution: 0.1dB

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Display: 0.5secretary
7) Bar graph:50dB scale at 1dB step for monitoring current sound pressure level display
period:50mS
8) level ranges: 30-80dB; 50-100dB;
60-110dB; 80-130dB
9) Over indicate over range:
Under indicate less than lower limit of the range.
10) Ac output: 0.707Vrms at FS output impedance
approx 600Ω
11) DC output: 10mV/dB output impedance approx 100Ω
12) weighting time : fast/slow
13) Microphone :1/2 inch electret condenser microphone
14) Max: Maximum hold
15) Power supply: 1*9V alkaline cells or DC 9V adapter
Power life: about 30hrs(alkaline cells)
16) self calibration time: 10 sec(every turn on)
17) Operating Temperature: 0℃~40℃
Operating Humidity: 10%~80%RH
18) Storage Temperature:-10℃~60℃
Storage Humidity :10%~70%RH
19) Dimensions: 265(L)*72(W)*35(H)mm
20) Weight: 300g(including batteries)
D. Calibration Procedures:
Please use a Standard Acoustic Calibrator.
1) Make the following settings:
Display: SPL(dBA) time
weighting: FAST
Level range: 60~110dB
Measurement mode: MAX function disable
2) Insert the microphone carefully into the 1/2 inch hole of the Calibrator.
3) Turn on the Calibrator and adjust the Protentiometer in side the Battery compartment of the
unit (shown in the diagram 1). The level display will indicate the desired Level (94.0).
Our products are all well calibrated before Shipment. Recommended recalibration cycle: 1 year

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E. Name and fuctions
1) Electret condenser microphone
2) LCD display.
3) Power switch
4) Level range control switch:
30dB~80dB, 50dB~100dB
60dB~110dB, 80dB~130dB
5) Maximum value hold switch (MAX)
6) Frequency weighting select switch.
A: A weighting for general sound level measurements
C: C weighting for checking the low frequency content of noise.
7) Time weighting select switch.
Fast: For normal measurements.
Slow; for checking average level of fluctuating noise.
8) AC output terminal: 0.707Vrms corresponding to each range step.
9) DC out put terminal: output 10mV/dB
10) Calibration control
11) External DC 9V power supply terminal.
12) Battery Door.
13) Tripod mounting screw.
14) Windscreen
F. LCD Display description:
1) Level range
2) Instantaneous sound pressure level
3) Low battery Mark.
4) Maximum value is held during measuring.
5) Measuring value
6) Measuring Unit
7) Frequency weighting A/C
8) level range bar graph
9) Range over
10) slow time weighting
11) fast time weighting
12) Range under

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G. Pre-operations:
1) Use Screwdriver open battery door and install four 1.5V batteries in the battery compartment.
2) Install battery door with screwdriver.
3) When the battery voltage drops below the operating voltage, mark appears. Please replaced
with new one.
4) When the DC adapter is used, insert the plugs (3.5Φ) of the adapter into the DC 9V
connector on the side panel.
H. Operation direction:
1) Turn on Power.
2) Select the desired response and weighting, also select desired range.
3) If weighting for general noise sound level, please select dBA.
4) If the sound source consists of the short bursts of only catching sound peak, set response to
FAST. To measure average sound level, use slow setting.
5) When MAX mode is chose, the instrument captures and hold the maximum noise level.
6) Put provided plug of cable to output port which is located on the side of Sound Level Meter.
Then connect to one of Sciencecube interface channels. ([A],[B],[C])
Now you are ready to make experiment with Sound Level Meter.
I. Cautions
1) Do not operate the unit at high temperature and humidity environment.
2) Please take out battery from unit if not in use for any extended period of time.
3) Once using the unit in the presence of wind, must mount the windscreen to not pick up
undesired signals.
4) Operating Environmental condition:
Humidity: ≤80%RH
Temperature: 0℃~40℃
KoreaDigital Co. Ltd.
#804 Ace twin tower 2, Guro, Seoul 152-766 South Korea
TEL [phone] ·FAX [phone]
[e-mail] ·www.sciencecube.com
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