dB-Meter Digital, dB-Meter Analog, dB-CAL
SOUND LEVEL METERS & CALIBRATOR



Awareness of environments has brought about many a control on the emanations of the industry. Noise control being one such area where sound level meters are a must. Also safety and alarm annuciators like sirens, horns, hooters, etc. must generate enough sound. The audio equipment and performance theatres must provide proper conditions for the audition. For all Such measurements...

 Most versatile SOUND intensity measuring instruments.
  • Light weight and portable
  • Elegant casing and style with easy to read LCD METER display
  • Designed to meet IS-977, IEC 651, Type 1, DIN 45633, JISI502.
  • Low Power consumption
  • Self battery check
  • ‘A’ and ‘C’ weightings for proper frequency response
  • ‘Slow’ and ‘FAST’ response for average and peak sound levels
  • dB-CAL for field calibration check of dB-METERS
  • Digital.....
  • Max hold facility
  • Warning indicator for over and under range
  • Only three wide overlapping ranges from 30 to 130 dB

dB-METER...DIGITAL : The leading sound level meter in India, with digital technology for accurate and consistent readings of sound intensity.

Also dB-CAL: Sound Level Calibrator for precise calibration.

And of course still available is good old low cost dB-Meter Analog (meter type).

Applications for measuring :

  • Sound Level/Noise Level in industires
  • Noise pollution in noise research and control
  • Sound Level in unechoic chambers, horns, sirens hooters, etc.
  • Musical sound level in analysis of –
  • audioriums and studios public address systems
Analog dB-Meter Digital dB-Meter dB-CAL
Range 50 to 126 dB
(seven positions)		 30 to 130 dB
(three positions)		 94 and 114 dB
Accuracy ± 2 dB at 114 dB ± 1.0 dB ± 0.5 dB
Resolution ± 0.5 dB ± 0.1 dB -
Frequency 31.5 Hz to 8000 Hz 1000 Hz + 2%
Standard 0 dB = 0.0002 Micro Bar
Weighting Scales (frequency response) A-500 to 10,000 Hz
C-30 to 8000 Hz (uniform)		 -
Output Signal 1.0 volt (peak) with full scale meter deflection @ 1KHz into 10 Kilo Ohms load 0.5 volt rms AC output impedance 600 ohm 94 dB and 114 dB sound output through audio speaker
Output Distortion Less than 2% at 1 KHz 0.5 volt Less than 1% at 1 KHz 0.5 volt Less than 5%
Microphone Electret condensor type, generally omni-directional Electromagnetic Speaker
Operating Temperature 0 to 50° C
Operating Humidity Maximum 90% RH (non-condensing)
Battery Check One 9v (EVERADY) 216 type)
Pointer reads in green LCD display shows ‘LO BAT’ LED indication
Life (working hours) 70 to 100 50 to 70
Display Meter pointer 10 mm, 3 ½ digit LCD -
Housing and Size (in mm) Moulded in industrial plastic (ABS) L 160 x W 65 X D50 Aluminium extruded L 145 x W 65 x H 25
Weight 250 grams 200 grams