Sper Scientific 840012 Sound Meter with Detachable Probe - Manual (Page 7)

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4. SPECIFICATIONS
Display 2” x 1.25” LCD (52x32mm), 5 digits with
indicator.
Functions dB ( A & C Frequency Weighting), Response
(Fast, Slow), Hold, Memory (Min/Max), Max.
Hold, AC Output, RS232 Output
Measurement Range 30 -130 dB
Resolution 0.1 dB
Range Selector 30~80dB, 50~100dB, 80~130dB,
50dB on each step, over/under range
indicator. Auto Range: 30 ~ 130dB
Accuracy ±1.5 dB
Frequency 31.5 Hz to 8,000 Hz
Microphone Electric condenser microphone,
Dia. .5” (12.7mm)
Response (Fast/Slow) Fast (F): t = 200 ms
Slow (S): t = 500 ms
Calibration VR Built-in external calibration VR for easy
calibration using a standard 94 dB calibrator.
Output Signal AC output: AC 0.5 Vrms corresponding to
each range step.
Output impedance: 600 ohm
Output Terminals RS232, AC, 3.5mm diameter jack
Operating Temp. 32~122°F (0~50°C)
Operating Humidity Less than 80% RH
Power Supply One 9V battery, heavy duty or alkaline type
Power Consumption Approximately DC 6 mA
Weight Weight: 8 oz (225 g) with battery
Dimension Meter 10.6 x 2.7” x 1.1” (268 x 68 x 29mm).
Probe 6.7” x 1” x .7” (170.5 x 24.5 x 19mm)
Probe cord length: 78.7” (200cm)
Included Accessories Windscreen, calibration tool, instructions, 9V
battery, hard-shell foam-lined carrying case
Optional Services &
Accessories from Sper
Scientific 840012C NIST Traceable Cert. of Calibration
850016 2 Pt. Acoustical Calibrator
840057 RS232 Cable
840090 Water Resistant Instrument Pouch
850080 Software
840092 Bench Top Tripod
840093 Field Tripod