TM-101
Sound Level Meter

This unit conforms to the IEC651 Type2, ANSI S1.4 Type2 for Sound Level Meters.

APPLICATION

This Sound Level Meter has been designed to meet the measurement requirements of safety Engineers, Health, Industrial safety offices and quality control in various environments.
  • Ranges from 30dB to 130dB at frequencies between 31.5HZ and 8 KHZ .
  • Display with 0.1dB steps on a 3 1/2 digits LCD.
  • With two equivalent weighted sound pressure levels, A and C.
  • Both AC and DC signals output is available from both standard 3.5mm coaxial socket suitable for a frequency analyzer, level recorder, FFT analyzer, graphic recorder ; etc.

FEATURES

  • MAX/MIN hold
  • Frequency weighting select A / C
  • Time weighting: Fast (125ms) ,Slow (1sec)
  • 1/2 inch electret condense microphone
  • AC / DC output
  • OVER is showing when input is more than upper limit of range UNDER is showing when input is less than lower limit of range

SPECIFICATIONS

Display
 3½digits LCD,resolution:0.1dB
 Standard applied
 IEC 651 Type2, ANSI 1.4 Type2
 Frequency range
 31.5Hz~8KHz
 Measuring level range
 30~130Db
 Measurement item
 SPL (sound pressure level)
 Frequency weighting
 A/C
 Microphone
 ½inch electret condense microphone
 Time weighting
 Fast (125ms) ,Slow (1sec)
 Level ranges
 Lo:30~80dB Med:50~100dB Hi:80~130dB
 Accuracy
 ±1.5dB (under reference conditions)
 Dynamic range
 50dB
 Alarm function
 •OVER is showing when input is more
  than upper limit of range
 •UNDER is showing when input is less
  than lower limit of range
 MAX/MIN hold
 hold readings the
Maximum or Minimum value
 AC output
 1Vrms at FS (full scale)
 DC output
 10Mv/dB output impedance Approx. 100Ω
 Output impedance
 Approx. 50Ω  FS:
 means the upper limit of each level range
 Low battery indication
 replace battery as LCD display
 DC adapter
 voltage 9V DC (8~13 VDC Max)
 supply current
 >30m ADC
 Dimension
 280x80x32mm (LxWxH)
 Weight
 about 300g (including battery)