Vernier Software and Technology
Vernier Software & Technology
Tech Info Library

Sound Level Meter Troubleshooting and FAQs

Sound Level Meter, order code SLM-BTA
Specifications and User Guide
TROUBLESHOOTING
-Primary Test (stand alone): Use the Power button to turn on the device. The LCD panel should display a reading of sound level, in dB.
-Secondary Test (connected to a LabPro, CBL 2, Go! Link, or ULI): Connect the device to a LabPro (or ULI) and run the data-collection program. Open a file in the Probes & Sensors folder under the Experiment list. A reading should appear on the main screen of the data-collection program. Note: The older Sound Level Meters do not auto-ID.

RELATED TIL ENTRIES
TIL 3486: What is the difference between the Sound Level Sensor and the Sound Level Meter?
TIL 3487: What advantages does a Vernier sound level sensor have over a smartphone sound level app?
TIL 3501: Why doesn't my sound level meter read below 40 dB?
TIL 3500: What is the difference between "A weighting" and "C weighting"?

SPECIFICATIONS
Sensor: Electric condensor microphone, 13.2 mm
Power: 4 AAA batteries
Display: 18 mm 3 1/2 digit LCD
Input ranges: 35 dB to 90 dB
75 dB to 13 dBC
Frequency range: 31.5 Hz to 8,000 Hz
Resolution: 0.1 dB
Accuracy: 1.5 dB (ref 94 dB at 1 kHz)
Response: Slow, 500 ms; Fast, 200 ms
DC Output: 10 mV/dB
AC Output: 1.0 Vrms corresponding to each range setup

CALIBRATION?
-Calibrate? No
-If calibration is a concern, additional equipment is needed to calibrate the sensor.

RELATED VERNIER PRODUCTS
Sound Level Sensor, order code SLS-BTA, $69
Microphone, order code MCA-BTA, $44

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