Digital Sound Level Meter 8921
Monitor the sound levels from traffic noise, alarm systems and workplace machinery etc
This digital sound level meter provides automatic or manual ranging in six measurement ranges from 30 to 130dB. The unit meets ANSI S1.4 and IEC 651 Type 2 standards, and features 0.1dB resolution.
A background noise absorber permits you to measure sound levels accurately even in the presence of high background noise.
The meter allows you to select between fast and slow response times and A and C weighting.
A maximum hold function is provided.
Jacks on the meter provide both AC and DC analogue output, while an RS-232 interface allows you to use an optional cable to capture sound level data on a PC.
Specifications:
|
Applicable Standards |
IEC 651 Type 2, ANSI $1.4 Type 2 |
|
Measurement
Frequency
Range Accuracy |
31.5Hz—8KHz ±1 .5dB(Under reference conditions) |
|
Measurement Level A Weighting |
30dB—130dB |
|
Measurement Level C Weighting |
35dB-130dB |
|
Measurement
Level
Range
|
6 ranges in 10dB steps:
30—80dB, 40—90dB,
50-l00dB, 60—ll0dB,
70—120dB, 80—130dB |
|
Automatic
Range |
30—130dB |
|
Time Weighting |
Fast and slow |
|
Segment
Range |
50dB |
|
Digital Display |
3 1/2 digit LCD, 0.1dB resolution updated every 0.5 seconds |
|
Quasi-Analogue Bar-indicator |
1dB display steps, 50dB display range, updated every 50ms |
|
Microphone |
6mm diameter Electrets condenser microphone |
|
Analogue Output |
AC: 0.707Vrms (at full scale), DC: l0mvDC/dB |
|
Size |
80mm x 256mm x 38mm |
|
Weight |
240g (10.3oz) |
|
Operating Temperature |
4 to 50°C, 10 to 90% Relative Humidity |
|
Storage Temperature |
-20 to 60°C |
|
Battery |
9v
Battery |