ADA ZSM 130+ Sound Level Meter

Frequency range

31.5 Hz — 8 kHz

Measureable sound level range

35-130 dB

Calculation according to

A/C

Microphone

½ inch electret condenser microphone

Calibration

Calibration with internal radiator (harmonic wave 1 kHz)

Display

LCD Display

Digital display

4 digits

Resolution

0.1 dB

Data display

0.5 sec

Temporal weighting

FAST (125 sec.). SLOW (1 sec.)

Sound level ranges

Lower: 35-100 dB
Upper: 65-130 dB

Measurement accuracy

1.5 dB (under set conditions)

Dynamic range

65 dB

Emergency alarm

Displays “Over” if input signal exceeds range limits

Maximum hold

Holds the maximum value with a drift < 1 dB/3 min.

AC output signal

0.65Vrms at scale limit;
output impedance — 600 ohms

DC output signal

10 mV/dB; output impedance — 600 ohms

Automatic shutdown

Automatically turns off after 15 min. of inactivity

Power supply

9V (Krona type)

Battery life

~ 50 hrs (alkaline battery)

Operating temperature

0...+40°C

Operating humidity

10-90%

Storage temperature

-10...+60°C

Storage humidity

10-75% relative humidity

Dimensions

245×64×31 mm

Weight

255