15-year
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CR310 Low-Cost Integrating Decibel Meter
Sound Level MetersThe CR:310 low-cost integrating decibel meter is ideal for providing noise measurement data, and assisting you in carrying out basic noise-at-work assessments
- Class 2 integrating sound level meter (meets IEC 61672-1:2013)
- Measure Sound Pressure Level (SPL) and Maximum Sound Level (LMax)
- Leq, and Leq8h
- A and C frequency weightings
- Basic workplace noise assessments
The Cirrus Research Low-Cost Integrating Decibel Meter
The CR:310 is an integrating decibel meter ideal for simple noise measurements and basic noise at-work measurements. In addition to measuring the maximum sound level (LMax), CPeak, and the sound pressure level (SPL), the CR:310 provides average noise level data (Leq) and the overall dose values (Leq8h), this allows it to be used for basic workplace noise assessments.
The decibel meter also displays A and C frequency weightings, as well as Fast and Slow time weightings which other basic sound level meters available on the market cannot. The CR:310 displays the Leq for one measurement, using the start/stop button on the instrument. You can also send the measurements directly to a portable printer (sold separately).
Applicable Standards:
IEC 61672-1:2013 Class 2
Measurement Range:
30dB (A) to 130dB (A)
40dB (C) to 130dB (C)
Frequency Weightings:
A and C
Time Weightings:
Fast (F) and Slow (S)
Display Functions:
Normal, Maximum, Minimum, C peak
Measurement Functions:
LAF, LAS, LCF, LCS, LCpk
Leq (CR:310), LEq8h (CR:310)
Noisefloor:
< 25dB (A) and 35dB (C) Display Flags Threshold Limit, Overload, Under-range Auto Calibration Range:
±4.5dB
Reference Point:
94dB (1kHz), 92.9dB (8kHz)
Setting Time:
60s
Display:
Backlit 128×64 LCD，resolution 0.1 dB.
Resolution:
0.1dB
Electrical Inputs:
5V power in via mini USB
Power:
2 x AA/LR6 1.5V batteries
Or
5V DC via Mini USB
Battery Life:
24hrs
Microphone:
½˝ pre-polarised electret condenser type HY:205
Operating Temperature:
0°C to +40°C
Operating Humidity:
25% to 90%
Atmospheric Pressure:
65 kPa to 108kPa
Storage Temperature:
-20°C to +60°C
Dimensions:
215mm×68mm×32 mm
Weight:
220g（including battery)
Electrical Outputs:
AC (Tip 3.5mm jack) and DC (middle 3.5mm jack)
DC Output:
voltage 15mV/dB, range 450mV to 1950mV
AC Output:
RMS 2V
