Sper-scientific 840029 Sound Meter Digital Manual de usuario descargar pdf (Pagina 6)

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

- 6 -

1 2 3 4 5 6 7 8

Sin comentarios

Sper-scientific 840029 Sound Meter Digital Manual de usuario Pagina 6