Overview
HBO SJ-P Multifunction Sound Level Meter is a portable device for environment, machinery, transportation, marine and Miscellaneous noise sound level measurement, suitable for industrial environmental protection, construction, teaching and research departments. The product has a variety of weighting and Measurement parameters to choose from, support Data storage and PC communication functions.
Features
1. Three weighted "A"/"C"/"F" options and time weighted "fast" and "slow" options.
2. Measurement parameters: Lp ordinary sound level measurement, Leq equivalent continuous A sound level measurement, Lmax maximum sound level measurement, LN statistical sound level measurement.
3. With DC output of 10mV/dB.
4. Can store 30 sets of measurement data and measurement status.
5. Equipped with functions such as "alarm value setting", "output", "automatic shutdown and manual shutdown".
6. Use "USB data cable output" and "RS-232 data cable output" to communicate with PC.
7. Also provide "Bluetooth Bluetooth ™ data output" selection.
Principle
The sound level meter collects sound signals through a 12.5mm condenser microphone, applies Frequency Weighting (A, C, F) and Time Weighting (fast, slow) processing, measures sound level parameters such as Lp, Leq, Lmax and LN, and supports Data storage and output.
Applications
Environment, machinery, transportation, shipbuilding, industrial environmental protection, construction, teaching and research
Standards
IEC651.2、ANSI1.4.2
Steps
1. Select Frequency Weighting (A, C, or F) and Time Weighting (Fast or Slow).
2. Measurement parameters (Lp, Leq, Lmax or LN).
3. Start measuring and recording data.
4. Use USB, RS-232 or Bluetooth to output data to the PC.
5. Set the alarm value and shutdown mode as required.
Notice
• Make sure the battery is fully charged before use, and pay attention to the low voltage indicator.
• Avoid strong electromagnetic interference during measurement.
• Regularly calibrate using the built-in 94dB calibrated signal.
When storing data, be careful not to exceed the 30-set limit.
• Ensure that the voltage is 6V DC when using the external power supply.
