USB PC Interface
The meter has a built-in USB port for use with the supplied data acquisition software. The software
allows the user to download stored data, view, save, export, and print readings from the sound level
meter.
SOFTWARE INSTALLATION
Refer to the documentation included with the software for complete details on installation and
operation of the application program and the USB driver software.
SOFTWARE COMMUNICATION
1. Connect the meter to the PC using the supplied USB cable.
2. Turn the meter ON and press the SETUP button.
3. Launch the application program.
4. Select the COM port which has the CP210X driver installed.
5. Data will appear on the pc screen when communication is established.
Specifications
Applicable Standards IEC61672-1: 2002 Class 2; IEC60651: 1979 Type 2; ANSI S1.4:1983
Type 2,
Accuracy ±1.4dB (under reference conditions)
Frequency Range 31.5Hz to 8kHz
Dynamic Range 50dB
Frequency Weighting A and C
Time response Fast (125ms) and Slow (1 second)
Measurement Ranges 30 to 80dB, 50 to 100dB, 80 to 130dB and autoranging (30 to 130dB)
Memory 20,000 records with date and time
Microphone ½” electret condenser
Calibration Requires external calibrator
Display 4 digit LCD with bargraph and backlighting
Display update rate 2 times/second
Range indicators “OVER” and “UNDER” range indication
Battery life 30 hours (approximately)
Power supply One 9V battery (NEDA1604 or equivalent) or 12V/1A AC adaptor
Auto Power Off After approx. 15 minutes of inactivity with disable
Analog Outputs AC: 1Vrms full scale; Output impedance: 100Ω
DC: 10mV/1dB; Output impedance: 1kΩ
Operating conditions 32 to 104
o
F (0 to 40
o
C); 10% to 90% relative humidity
Storage conditions 14 to 140
o
F (-10 to 60
o
C); 10% to75% relative humidity
Dimensions 10.9 x 3 x 1.97” (278 x 76 x 50mm)
Weight 12.35 oz. (350g)
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