The SL4011 DIGITAL SOUND METER is currently out of stock

SL4011 DIGITAL SOUND LEVEL METER

DIGITAL SOUND LEVEL METER

Model : SL-4011

FEATURES

* Large LCD display, easy to read. * Max. Hold function for stored the maximum value on display.

* Frequency weighting networks are designed to meet the * Warning indicator for over and under load.

IEC 61672 type 2. * LCD display for low power consumption & clear read-out even

* A & C weighting networks are conformity to standards. in bright ambient light condition.

* Time weighting(FAST & SLOW) dynamic characteristic modes. * Used the durable, long-lasting components, including a strong,

* AC/DC output for system expansion. light weight ABS-plastic housing case.

* Build in adj. VR is available for easy calibration. * Small and light weight design allow one hand operation.

* Condenser microphone for high accuracy & long-term stability. * Low battery indicator.

SPECIFICATIONS

Display 18mm (0.7") LCD (Liquid Crystal Display), 3 1/2 digits.

Function dB (A & C frequency weighting), Time weighting(Fast, Slow), Max. hold, AC & DC output.

Measurement Range 3 ranges, 30 to 130 dB, input signal only.

Resolution 0.1 dB.

Accuracy Frequency weighting meet IEC 61672 type 2, calibrating input signal on 94 dB(31.5 Hz to 8

(23 ± 5 ℃) kHz), then the accuracy of A weighting is specified as following:

31.5 Hz - ± 3 dB, 63 Hz - ± 2 dB, 125 Hz - ± 1.5 dB

250 Hz - ± 1.5 dB, 500 Hz - ± 1.5 dB, 1 kHz - ± 1.5 dB

2 kHz - ± 2 dB, 4 kHz - ± 3 dB, 8 kHz - ± 5 dB

Characteristics of A & C.

Frequency A weighting - The characteristic is simulated as "Human Ear Listing" response. Typical, if making

Weighting Network the environmental sound level measurement, always select to A weighting.

C weighting - The characteristic is near the "FLAT" response. Typical, it is suitable for checking the

noise of machinery (Q.C. check) & knowing the sound pressure level of the tested

equipment.

Frequency 31.5 Hz to 8,000 Hz.

Calibrator B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226.

Microphone Electric condenser microphone.

Size of microphone 1/2 inch standard size.

Range selector 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step,

with over & under range indicating.

Time weighting Fast - t= 200 ms, Slow - t = 500 ms,

(Fast & Slow) * "Fast" range is simulated the human ear response time weighting.

"Slow" range is easy to get the average values of vibration sound level.

Calibration * Build in external calibration VR, easy to calibrate by external screw driver.

* Internal oscillation system, 1 KHz sine wave generator.

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.

Out put impedance - 600 ohm.

Out terminal 3.5 phone output terminal is provided for connection with analyzer, level recorder, tape

recorder.

Operating Temp. 0 ℃ to 50 ℃ ( 32 ℉ to 122 ℉ ).

Operating Humidity Less than 80% RH

Power Supply 006P DC 9V battery(heavy duty type).

Power Consumption Approx. DC 6mA.

Dimension 255 x 70 x 28 mm (10.0x2.8x1.1 inch).

Weight 280 g/0.62 LB (including battery).

Standard Accessories Instruction Manual ............... 1 PC.

Calibration screw driver.........1 PC.

Optional Accessories 94 dB Sound Calibrator, Model : SC-941.

94 dB/114 dB Sound Calibrator, Model : SC-942.

Hard carrying case, Model : CA-06.

* Appearance

 FEATURES

* Large LCD display, easy to read. * Max. Hold function for stored the maximum value on display.

* Frequency weighting networks are designed to meet the * Warning indicator for over and under load.

IEC 61672 type 2. * LCD display for low power consumption & clear read-out even

* A & C weighting networks are conformity to standards. in bright ambient light condition.

* Time weighting(FAST & SLOW) dynamic characteristic modes. * Used the durable, long-lasting components, including a strong,

* AC/DC output for system expansion. light weight ABS-plastic housing case.

* Build in adj. VR is available for easy calibration. * Small and light weight design allow one hand operation.

* Condenser microphone for high accuracy & long-term stability. * Low battery indicator.

SPECIFICATIONS

Display 18mm (0.7") LCD (Liquid Crystal Display), 3 1/2 digits.

Function dB (A & C frequency weighting), Time weighting(Fast, Slow), Max. hold, AC & DC output.

Measurement Range 3 ranges, 30 to 130 dB, input signal only.

Resolution 0.1 dB.

Accuracy Frequency weighting meet IEC 61672 type 2, calibrating input signal on 94 dB(31.5 Hz to 8

(23 ± 5 ℃) kHz), then the accuracy of A weighting is specified as following:

31.5 Hz - ± 3 dB, 63 Hz - ± 2 dB, 125 Hz - ± 1.5 dB

250 Hz - ± 1.5 dB, 500 Hz - ± 1.5 dB, 1 kHz - ± 1.5 dB

2 kHz - ± 2 dB, 4 kHz - ± 3 dB, 8 kHz - ± 5 dB

Characteristics of A & C.

Frequency A weighting - The characteristic is simulated as "Human Ear Listing" response. Typical, if making

Weighting Network the environmental sound level measurement, always select to A weighting.

C weighting - The characteristic is near the "FLAT" response. Typical, it is suitable for checking the

noise of machinery (Q.C. check) & knowing the sound pressure level of the tested

equipment.

Frequency 31.5 Hz to 8,000 Hz.

Calibrator B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226.