439
METERS
M
Sound
Model
SL-4030
Display
LCD size: 49 mm x 25.5 mm, Digit size: 21.7 mm x 8.8 mm.
Measurement Range
A Weighting- 3 ranges, 30 to 130 dB. C Weighting- 3 ranges, 30 to 130 dB.
Resolution
0.1 dB.
Function
dB (A & C weighting), Time weighting (Fast, Slow), Max. hold, AC output, DC output.
Accuracy
(23± 5
°
C )
Frequency weighting meet IEC 61672 class 2, calibrating input signal on
94 dB (31.5 Hz to 8 kHz), the accuracy of frequency weighting is specified as following:
31.5 Hz - ± 3.5 dB; 63 Hz - ± 2.5 dB; 125 Hz - ± 2.0 dB; 250 Hz - ± 1.9 dB;
500 Hz - ± 1.9 dB; 1 kHz - ± 1.4 dB; 2 kHz - ± 2.6 dB; 4 kHz - ± 3.6 dB; 8 kHz - ± 5.6 dB.
Frequency
31.5 to 8,000 Hz.
Microphone Type
Electric condenser microphone.
Microphone Size
Out size, 12.7 mm Dia. (0.5 inch).
Weighting Network
Characteristics of A & C.
Range selector
ranges (30 to 80dB, 50 to 100dB, 80 to 130dB).
* 50 dB on each step, * with over/under range indicating.
Time weighting
(Fast, Slow)
Fast - t= 200 ms, Slow - t = 500 ms
* "Fast" range is simulated the human ear response time.
* "Slow" range is easy to get the avg. values of vibration sound level.
* The "Fast" & "Slow" response range are designed to meet IEC 61672 class 2
requirement.
Calibrator
B & K (Bruel & kjaer), Multifunction Acoustic Calibrator 4226.
Output Signal
AC output - AC 0.5 Vrms corresponding to each range step.
DC output - DC 0.3 to 1.3 VDC, 10 mV / per dB. Output impedance - 600 ohm.
Output terminal
3.5 mm dia. phone output terminal is provided for connection with analyzer,
level recorder, tape recorder.
Operating Temp.
0 to 50 °C
Operating Humidity
Less than 80% R.H.
Power Supply
006P DC 9V battery (heavy duty type) or DC 9V adapter input.
Power Consumption
Approx. DC 10 mA.
Weight
213 g/0.5 LB.
Dimension
200 x 69 x 28 mm (7.9x2.7x1.4 inch).
Accessories Included
* Instruction manual: 1PC
Optional Accessories
* Sound calibrator (94dB), SC-941. * Sound calibrator (94/114dB), SC-942.
* Wind shield ball, SB-01 * AC to DC 9V adapter.
●
Large LCD display, easy to read.
●
Time weighting and frequency weighting meet, IEC 61672 class 2.
●
A & C weighting networks are conformity to standards.
●
0.5" standard out size of the microphone.
●
Time weighting (Fast & Slow) dynamic characteristic modes.
●
AC / DC output for system expansion.
●
External calibration VR.
●
Condenser microphone for high accuracy & long-term stability.
●
MAX. HOLD function for stored the maximum value.
●
Warning indicator for over and under load.
●
Low battery indicator.
●
LCD display for low power consumption & clear read-out even in
bright ambient light condition.
●
Used the durable, long-lasting components, including a strong,
light weight ABS-plastic housing case.
●
Pocket and light weight design allow one hand operation.
●
Power by 006P DC 9V battery or DC 9V adapter.
SL-4030, Sound Level Meter, Mini Pocket Type, IEC 61672 Class 2
SL-4030
