1. Features
*This product complies with IEC651.2 international electrical standard and ANSI1.4.2 American standard. It is widely used in the environmental protection department and the measurement of machinery, transportation, shipping and other noises.
*Powerful. This instrument can measure 4 kinds of parameters. Lp common sound level measurement, Leq equivalent continuous A sound level measurement, max maximum sound level measurement, LN statistical sound level measurement.
*With alarm value setting and output function.
* With 'A', 'C', 'F' three weighting options and time weighting "fast" and "slow" function options.
* With DC output, 10mV/dB.
*Automatic range selection. Digital display, no parallax.
* With automatic and manual shutdown function. The instrument can be set to automatically shut down from 1 to 9 minutes, or cancel the automatic shutdown. At the same time, you can press the switch to manually shut .
*This instrument can store 30 sets of measurement data and measurement status for later reference or computer output.
*It can be connected with a computer through an optional online cable and software to realize statistics, printing and analysis.
2. Specifications
Display: 14mm (0.55") backlit liquid crystal display Measurable parameters:
Lp-General sound level measurement
Leq - Equivalent sound level measurement
Lmax - maximum sound level measurement
LN - Statistical Sound Level Measurement
Measuring range:
Lp ordinary sound level:
30-130dB (A-weighted)
35-130dB (C-weighted)
40-130dB (linear)
Leq equivalent sound level: 30-130dB (time can be
Choose 10 seconds, 1 minute, 5 minutes, 10 minutes, 15 minutes
clock, 30 minutes, 1 hour, 8 hours, 24 hours)
LN statistical sound level: 0-100%
Resolution: 0.1dB
Accuracy: ±2dB
Frequency weighting: 'A', 'C', 'F' (Flat)
Time Weighting: Fast, Slow
Microphone: 12.5mm condenser microphone
Storage memory function: 30 sets of measurement conditions and data
Built-in calibration signal: 94dB (1000Hz sine
Signal)
Frequency Range: 20Hz to 8,000Hz
Alarm value setting: 30-130dB
Alarm output: LED and optional relay contact
Computer interface: RS232C
Power supply voltage display: low voltage display
Power supply: 4×1.5vAAA (4 AAA batteries)
Size: 140x70x30mm
Weight: 130g (without battery)
Standard configuration:
1. Host
2. Carrying case
3. Manual
4. Windshield
Optional accessories:
1. ND9 Sound Level Meter Calibrator
2. RS232 communication cable and software
3. External alarm relay.
4. AC Adapter
