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Infobyte iM4 Specifications

Sound Level Meter

AS1259.1 (IEC651) Type 1, Sound Level Meter

AS1259.2 (IEC804) Type 1, Integrating-Averaging Sound Level Meter

Type 2 microphone fitted:

Range, 27 to 118dBA

Frequency Response, 20Hz to 12kHz

Fast or Slow response time (switched by internal jumpers)

Frequency Weighting, 'A', 'C' or "LIN" (switched by internal jumpers).

 

Computer

32 bit RISC processor with Linux OS.

USB port for flash drive storage

Real time clock with Lithium battery backup.

Battery Life, 3 x 12Ah batteries approx. 4 weeks.

Lithium backup battery for main battery failure.

Data Capacity, years of continuous statistical or 0.1 second Leq's.

 

Operating Environment

Operating instrument temperature range is -15 to 60oC.

 

Dimensions and Weight

Case and Electronics Module 5kg (without 12V battery)

Typical 12Ah, 12V, battery 4kg

Total weight with one battery fitted, 9kg

Case Size: 320mm high x 180mm wide x 410mm long

 

Display

A backlit LCD display is provided on the instrument face for field calibration, indication of sound levels and instrument control messages

 

 

 

Pease note that the above specifications are subject to change without notice. Please contact Infobyte to confirm details.