Display
3
1/2
digits, 3/4" LCD
Functions
dB ( A and C Frequency Weighting),
Response (Fast, Slow),
Max. Hold
AC/DC Output
Measurement Range
30-70 dB, 60-100 dB, and 90-130 dB
40 dB on each step, with overload indicator
Resolution
0.1 dB
Accuracy
± 1.5 dB
Frequency
31.5 Hz to 8,000 Hz
Microphone
1/2" condenser microphone.
Response (Fast/Slow)
Fast (F): t = 200 ms
Slow (S): t = 500 ms
Internal Calibration
Built-in internal calibration on front panel.
Internal 94 dB / 1 kHz square wave generator
Output Signal
AC: 0.5 Vrms corresponding to each range
step. DC: 0.3~1.3 VDC, 10 mV per dB.
Output impedance is 600 ohm.
Output Terminal
3.5 mm diameter phone jack
Operating Temp.
32~122°F (0~50°C)
Operating Humidity
Less than 90% RH
IV. SPECIFICATIONS
Power Supply
One 9V battery, heavy duty or alkaline type
Power Consumption
Approximately DC 6 mA
Weight
10 oz.
Dimension
8
1/8"
x 3
1/8"
x 1
3/8"
Included Accessories
Instruction Manual, 9V battery, calibration
screw driver, and hard carrying case
Optional Services &
Accessories
840029C NIST Traceable Cert. of Calibration
840031
Acoustical Calibrator
840091
Wind Screen
CE Compliant
Yes
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