5 Deg C to 40 Deg C (41 deg F to 104 deg F);Less Than 80 % RH
-10 Deg C to 60 Deg C (14 deg F to 140 deg F)) Less Than 70 % RH
200 X 55 X 38 mm (7.8 X 2.2 X 1.5 in)
The Amprobe SM-10-A Sound Meter has been designed to check compliance with safety regulations and perform acoustic analysis by safety engineers, health, industrial and safety offices as well as quality control.
They use two different weighting filters required by the IEC651 and ANSI S1.4 Type 2 for audio filtering. The A weighting is for general noise sound level and the C weighting is for measuring sound level of acoustic material control in various environments (ie 94dB 1 kHz etc.)
Designed to meet the measurement requirements of safety engineers, health, industrial safety offices and quality control in various environments.
A and C weightings for checking compliance with safety regulations as well as acoustic analysis
Measuring ranges: A weighting 30 ~130dB C weighting 35~130dB
Frequency range: 31.5Hz~8KHz
Display with 0.1dB steps on a 4 digits LCD
Slow (1 sec) and fast (125ms) response settings to check peak and average noise levels
Data Hold to freeze reading on digital display
Accessories supplied: carrying case, windscreen, user manual and 9V battery
CE, designed to meet IEC651 type2, ANSI S1.4 type2
Function dB (A & C frequency weighting), Time weighting(Fast, Slow), Max. hold, AC & DC output.
Measurement Range 3 ranges, 30 to 130 dB, input signal only..
Calibrator B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226.
Microphone type Electric condenser microphone.
Size of microphone 1/2 inch standard size.
Range selector 30 to 80 dB, 50 to 100 dB, 80 to 130 dB, 50 dB on each step,with over & under range indicating.
Time weighting Fast - t= 200 ms, Slow - t = 500 ms, (Fast & Slow) * "Fast" range is simulated the human ear response time weighting."Slow" range is easy to get the average values of vibration sound level.
Calibration: * Build in external calibration VR, easy to calibrate by external screw driver. *Internal oscillation system, 1 KHz sine wave generator.
Output Signal AC output - AC 0.5 Vrms corresponding to each range step.DC output - DC 0.3 to 1.3 VDC, 10 mV per dB.Out put impedance - 600 ohm.
Output terminal 3.5 mm phone output terminal is provided for connection with analyzer, level recorder, taperecorder.
Sound Level Meter has been designed to meet the measurement requirement of noise engineers, noise quality control & health prevention in various environments, such as noise measurement in factory, Office, Traffic Road, Family & all other noise measurement applications
A/C Frequency weighting selection
Auto Power off 10 minutes
PWM signal output
4700 data record function
Frequency weighting : A & C
Time Weighting : FAST / SLOW
Sampling rate : 2 times / second
Microphone : ½ inch polarization capacitance microphone USB interface AC / PWM output Max reading
Overload indication : OVER / UNDER Low battery indication