Professional Digital Sound Level Meter DSL-331 with 32000-Record Data Logger and IEC651 Type2 Certification

DSL331

Digital Sound Level Meter

DSL-331 is a handheld digital sound level meter with a carrying case makes user to carry more conveniently . DSL-331 is suitable for various places. Applicable places: measuring environmental noise, measuring product ultra-quiet, measuring product volume standardization, equipment operating sound, hospitals and confinement centers.

Product Introduction

DSL-331 has analog and digital signal output functions which can be used for a long time with external transformer power supply. It can store 32,000 records, download the record data through a USB cable, or display the measured values and records simultaneously on the computer screen.

Optional microphone extension cable is 5 meters long.

DSL-331 Sound Level Meter Description: The DSL-331 is a feature-rich sound level meter designed for accurate and versatile noise measurement. With auto-ranging capabilities, a 32,000 records data logger, bar graph indication, and compatibility with Windows software, it meets diverse sound measurement needs. The device adheres to international standards, offering precise readings with features like fast/slow time weightings, AC/DC signal output, and overload indication. Keywords: DSL-331, Sound Level Meter, Noise Measurement, Auto Ranging, Data Logger, Bar Graph Indication, Windows Software, Fast/Slow Time Weightings, AC/DC Signal Output, Overload Indication, IEC 651 Type II, ANSI S1.4 Type2.

Measurement Specification

Display : 4 digits
Sound Level Range : Low :30~80dB / Middle :50~100dB / High :80~130dB
Resolution : 0.1 dB
Frequency Range : 31.5Hz ~ 8KHz
Accuracy : ±1.5dB ( 94dB @ 1KHz )
Dynamic Range : 50dB
Frequency Weighting : A and C
Time Weighting : (FAST) 125ms，(SLOW) 1Sec.

Product Features

DATA LOGGING : 32,000 records
RECORDING INTERVAL SETUP : 0.1 Sec. ~ 30 Sec.
DATA HOLD : MAX HOLD，MIN HOLD
OVERLOAD INDICATION : “OVER”，”UNDER”
ANALOG SIGNAL OUTPUT : AC/DC Signal，Output from the headphone
AC OUTPUT RANGE : AC=1Vrms(Full Scale)，output impedance Approx. 100Ω
DC OUTPUT RANGE : DC=10mV/dB，output impedance Approx. 1KΩ
CORRECTION METHOD : Knob correction (Side knob adjustment )

Product Information

Working Environment : 0~40°C / 10~90%RH without dew。
Storage Environment : -10~40°C / lower than 80%RH without dew。
Elevation Limitation : Lower than 1,000 meters
Microphone : 1/2 inch electric condenser microphone
Power Supply : DC 9V Battery x1 / 9V transformer (ADP-01) (Optional)
Battery Life : Approx. 50 hours (Alkaline battery)
Dimension : 275 (L) x 64 (w) x 30 (H)mm
Weight : Approx. 275 g (Battery Included)
Accessory : Instruction Manual、9V Battery、 Carrying Case、Calibration screwdriver, 3.5Ø plug, Sponge ball, USB Cable, Software Disk x 1

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