GAIN EXPRESS SLM-389 User Manual

SOUND LEVEL METER
USER MANUAL
SOUND LEVEL METER
REC USB
User Manual
PRODUCT FEATURES
•
Wide Measurement Range: 30 ~ 130 dB.
•
Upper Limit Setting
•
Sound and Light Alarm
•
External Alarm Output Interface: Can be connected to an external 12V alarm
speaker, with adjustable alarm duration time.
•
Six Analog Bar Level Indicators
•
Data Storage: Records data once every 2 seconds and can continuously store data
for up to one year.
•
Data Records Download and Real-time PC Connection Function: Allows you to
display real-time data sheets and charts, export and print data sheets and charts.
•
The PC software is compatible with Win7, Win8, and Win10.
SPECIFICATIONS
Range 30~130dB
Accuracy ±1.5dB (sound pressure reference,94dB@1KHz)
Resolution 0.1dB (＜10dB); 1dB (＞100dB)
Frequency weighting A weighting
Frequency response 31.5Hz ~ 8.5KHz
Sampling rate 2 times/s
Time weighting FAST, 0.5s
Sensor 6mm condenser microphone sensor
Test prode 5m
Display LED digital tube, single character 4" inches
Alarm output 12V high level
Alarm alert Sound + light
0 ~ 40°C; max 80%RH, indoor altitude ＜2000m
Working environment
Storage environment -10 ~ 60°C; max 70%RH
Product size 323 x 173 x 40mm
Weight Approx. 980g
Power DC 5V / 1A
dB
SEL
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INTENDED USE
Thank you very much for your patronage and choosing our products. Before you use this
product, please read this manual carefully as it will familiarize you with the correct
operating procedure.
SYNCHRONIZE TIME VIA PC SOFTWARE FOR PROPER METER LOGGING
1. Download and install the free EnvironmentalTester software from the QR code or URL
provided below.
Scan the QR code:
2. Launch the software and then connect the decibel meter to the computer using the
provided USB cable. The software interface should appear as shown below, indicating
that it is now ready for use.
NOTE:
When it is ready to use,
it should display
"Connected"
3. Click the "Sync" button to synchronize the current time
1
IMPORTANT
When using it for the first time, ensure you synchronize the current time
using the software; otherwise, you won't be able to export recorded data
METER DESCRIPTION
Decibel value
Alarm indicator USB indicator
REC indicator
1 2
4 5
1. Hanging hook: (standard accessories, installed according to needs) center spacing
280mm;
2. Wall hook hole: center spacing 184mm;
3. 1/4 "inch copper nut, the user can fix the device on the tripod through the copper
nut;
4. USB power interface 5V/1A.
5. Alarm output port, used for external horn, the horn needs to be purchased
separately. It is recommended to use 12v alarm horn with 3.5mm headphone plugs;
6. Calibration button, reserved in the factory, the instrument has been calibrated at the
factory, please do not implement self-adjustment;
7. Built in buzzer
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2
Analog bar level
Test probe: 5m
3 1
6 7
1
Sound
probe