BB106411.book : 2237-ch3 Black 3
Chapter 3 – Taking Measurements
Calibration
BB1064–11
3–3
2237 Controller
User Manual
3.1.4 Which Calibrators Can I Use?
The sound level meter can be calibrated with Brüel&Kjær
Sound Level Calibrator Type 4231 or any other certified sound
level meter calibrator that emits a 1 kHz signal at 94dB.
Each individual calibrator is slightly different. The actual
calibration level is not necessarily equal to the nominal cal-
ibration level. Therefore, it is important to check the level
listed in the chart included with your calibrator and set your
sound level meter accordingly.
Fig.3.1 Sound Level Calibrator Type 4231 fitted onto the 2237 Controller
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