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Sound Level Meter
Sound Level Meter
The 2031 Sound Level Meter is a precision instrument with Type1 accuracy as defined by IS: 9779-1981. It has the 'A', 'C' and 'Lin' frequency weighing. The instrument has three time weighing, 'Slow', 'Fast', and 'Impulse', allowing measurement for various applications. The display works in the maximum hold when 'Manual Reset' is used, while in the "Auto Reset" mode, the display is continuously updated with the maxima of the previous duration. The transducer is a 1/4" electret condenser microphone, housed in a detachable body. The body also contains a pre-amplifier, which allows the microphone to be remotely mounted via an extension cable. The signal from the RMS detector is converted to a dB value and is digitized by a 12-bit A to D converter and processed for display functions. As three ranges cover the entire measurement range from 34 - 134 dB the entire operation of the instrument is simplified. The 2031 are precise, versatile, rugged and portable and available at a very affordable price.
Product & Technology News
- Measuring range: 54-114 dB, 84-134 dB. Keypad selectable
- Calibration: Factory calibrated. Field calibration by Acoustic 3022
- Accuracy: As per IS: 1779-1981, Type 1 instrument
- Resolution: 0.1 dB
- Display: LCD, 0.5 inch, with low battery, under range and Indicators
- Frequency weighing: A, C, Linear, as per 18:9779-1981
- Time Response: Slow, Fast & Impulse, as per 18:9779-1981
- Measurement Modes: Manual Reset and Auto Reset
- Power Supply: Internal rechargeable NiCad batteries, with charger supplied
- Construction: Rugged die cast reflection free aluminum box
- Temperature & Humidity: 10 to 50 degree C and 0 to 90 % (Non-Condensing)
- Dimensions: 80 (W) x 52(H) X 315 (L)
- Measuring range of 34 to 134 dB in 3 convenient 50 dB overlapping ranges
- As per Type 1 accuracy of IS: 9779 – 1981
- LCD display with 0.1 dB resolution
- 'A', Â 'C', 'Lin' frequency weightings
- 'Slow', 'Fast', & 'Impulse' time response
- Maximum hold facility
- Rechargeable Ni Cad batteries, built in
- Removable microphone for remote mounting
- No moving parts, membrane keypad
- Can be connected to data loggers, filters, recorders etc
- Rugged, reflection-free, die cast aluminium body
- Simple, convenient and rugged for use in harsh environments
- Import substitution, with full service backup