The CEL620B data logging Integrating Sound Level Meter with Octave Band Filters is available as either Type 1 or Type 2 as defined by the international sound level meter standards.
Using a meter that meets these standards is essential for repeatable results and especially for any measurements that will be used for legal purposes.
|Measurement range||20 to 140 dB (single range), 143 dB Peak|
|Display||320 x 240 pixel color TFT|
|Output to PC||USB Mini B|
|Batteries||3 x AA Alkaline|
|(20 hours with backlight off)|
|External Power||9 to 14V DC at 250mA|
|Dimensions||72 x 229 x 31mm, 295g|
|2.8" x 9.0" x 1.2". 10.4oz|
|Frequency weightings||A, C and Z (simultaneous)|
|Time weightings||Fast, Slow and Impulse|
|Amplitude weightings||Q3, Q4 and Q5|
|Thresholds||70 to 90 dB (applies to Lavg)|
|Sound Level||LXY, LXYMax, LXYMin|
|Integrated||LXeq, Lavg, LAE|
|Takt Max||LTM3, LTM5, LXIeq|
|Octave Bands||LXY, LXYMax, LXeq|
|Frequency Bands||16Hz to 16kHz in 11 bands|
|Where X is frequency weighting A, C or Z|
|and Y is time weighting Fast, Slow or Impulse|
|CEL620 Sound Level Meter Datasheet (PDF, 250k)
CEL120 Acoustic Calibrator Datasheet (PDF, 423k)
The Type 2 sound level meter is available on its own or as part of a Kit, which includes Meter, Calibrator and Carrying Case.