BRUEL & KJAER 2245 - Page 4

Sound Level Meter Types 2245 – Instruction Manual Page 4 of 110
4.13 Wireless interface to the Sound Level Meter ........................................... 65
4.13.1 Bluetooth........................................................................................ 65
4.13.2 Wi-Fi .............................................................................................. 65
4.14 Electrical interface to the Sound Level Meter .......................................... 65
4.14.1 Output for Headphone and test ..................................................... 65
4.14.2 Digital Interfaces ............................................................................ 66
4.14.3 Charge /power Interface ................................................................ 66
4.15 Power Supply ........................................................................................... 66
4.15.1 External AC Main Supply Adapter ................................................. 66
4.15.2 Battery ........................................................................................... 66
4.16 Warm-up Time ......................................................................................... 67
4.17 Real-time Clock........................................................................................ 67
4.18 CE-mark and C-Tick mark Compliance ................................................... 67
Chapter 5 Regulatory .......................................................................................... 68
5.1 Regulatory ID’s summary ........................................................................ 68
5.2 Certified Antennas – do we need this? .................................................... 68
5.3 FCC and IC/ISED Regulatory .................................................................. 68
5.3.1 FCC (Federal Communication Commission Interference
Statement) ..................................................................................... 68
5.3.2 IC (Industry Canada Statement) .................................................... 69
5.4 EU Declarations of Conformity ................................................................ 69
Appendix A Tables ............................................................................................. 70
Electrical Frequency Responses ....................................................................... 70
Free-field Frequency Responses ....................................................................... 72
Diffuse-field Frequency Responses ................................................................... 76
Free-field Frequency Responses for Diffuse-field Calibrated Instruments
................................................................................................................. 80
Directional Responses ....................................................................................... 82
Periodic Testing of Acoustical Frequency Responses ..................................... 100
Appendix B Cross-references to Standards .................................................... 103
Introduction ...................................................................................................... 103
Cross-references to Standards ........................................................................ 103
Irrelevant Topics ............................................................................................... 110