3M SE-401 - Frequency Weighting Curves; A-Weighting Nominal Response

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Data Addendum

Sound Examiner SE-400 Series

Frequency weighting (sections: 5.1.10, 5.4.12)

A-Weighting Nominal

The graph below is the nominal A weighting frequency response

C-Weighting Nominal

The graph below is the nominal C weighting frequency response

Main Page

Default Chapter2
- Dangers, Warnings, Cautions & Battery2
- Intended Use2
- Safety Markings4
- Safety Standards4
- Table of Contents5
Introduction8
- Models and Options8
Sound Examiner SE-400 Series Overview8
- Display and Keypad8
- Table 1-1: Sound Examiner SE-400 Models Explained8
- Diagram and Functionality9
- Screen Components Identified9
- SE-400 Series Screen Components9
- Figure 1-1: SE-400 Screen Components9
- Table 1-2: Keypad Keys Identified9
Connectors/Ports10
- Usb10
- M Detection Management Software (DMS)10
  - Figure 1-2: Connector and Ports10
  - Figure 1-3: Acoustic Data and DMS Charting Example10
3 MT Detection Management Software (DMS)11
Getting Started11
- Checking the Equipment11
- Figure 2-1: Identify SE-400 Series Equipment11
Turning on12
- Screen Indicators12
- Table 2-1: Softkeys Explained12
Measurement/Start Screen13
- Measurement Screen Views13
- Navigating13
Turning off13
- Figure 2-2: Measurement Screen13
Setup/Instrument Configuration15
- Response Time and Frequency Weighting Settings15
- Figure 3-1: Response Time and Frequency Weighting15
- Opening the Setup Screen for Instrument Configuration16
- Start Screen /Measurement Screen16
- Figure 3-2: Opening the Setup Screen16
- Meter Settings17
- Setting up Meter Parameters17
- Figure 3-3: Choosing Meter Settings17
- Figure 3-4: Choosing Meter Settings17
- SE-400 Series Information Details18
- Figure 3-5: Unit Information Screen18
- Table 3-1: Meter Settings Explained18
- Time and Date Setting19
- Figure 3-7: Auto-Run Screen20
- Figure 3-8: Auto-Run Screen20
- Security: Locking and Unlocking Run/Setup21
  - Lock/Unlock: Secure Run21
  - Lock/Unlock Secure Setup21
- Figure 3-9: Secure Run and Measurement Screen21
Memory and Space22
- Deleting Files and Viewing Memory22
Resetting the SE-400 Series22
- Figure 3-10: Deleting Sessions/Files and Viewing Memory22
Calibrate, Measure, Run, and Saved Results23
- Overview of Running a Session23
- Performing a Calibration23
- Operation/Field Testing23
- Figure 4-1: SE-400 Series and Calibrating24
- Figure 4-2: Calibration Softkey Selection24
- Figure 4-3: Calibration Screen25
- Figure 4-4: CAL Screen25
Measure26
- Logged Data26
- Figure 4-5: Example of Logged Data in DMS26
- Figure 4-6: SE-400 Series with Windscreen26
- Positioning and Tripod Mount27
- Measurements and Displayed Parameters27
- Measurement Notations27
- Figure 4-7: Measurement Positioning and Tripod Mount27
- Run, Stop, and View Results28
  - Main/Multi- Measurement Screen in Run Mode28
  - Single Measurement Screen in Stop Mode28
- Figure 4-9: Single Measurement Screen in Stop Mode28
- Viewing Past Sessions29
- Figure 4-10: Session Directory Screen29
- Figure 4-11: Saved Sessions29
Download and View Logged Data30
- DMS & Downloaded Measurements30
- Figure 4-14: Downloading Files from DMS to SE-400 Series31
- Soundpatrol Feature (Non-IS Models Only)32
- Connecting the Printer and Settings32
- Figure 4-16: Print Setup Screen33
- Printing and Reports34
Microphone Preamp35
- Attaching the Preamp35
- Connecting an Extension Cable35
Standards/Directives37
Acoustical Characteristics37
- Microphones37
Measurements38
Mechanical Characteristics38
Environmental Characteristics38
- Physical Characteristics38
- Calibration38
User Interface Characteristics39
Power/Electrical Characteristics39
Ports and Connections39
SE-400 Series Models and Part Numbers40
- Accessories (Sold Separately)40
Glossary of Terms41
- Dynamic Range41
- Exchange Rate (ER)41
- Overload (OL)43
- Pascal (Pa)43
- Reference Pressure43
- Response Time (Fast “F”, Slow “S”)43
- Threshold44
- Upper Limit (UL)44
- B-3: Fast Response to a Tone Burst44
- Weighting (A, C, Z)45
- All Frequency Weightings Plotted Together45
Calibration46
- International Customers46
Warranty46
Customer Service46
- Contacting 3M Instrumentation46
Data Addendum: SE-400 Series Measuring to IEC 61672-147
- Peak C Level Range49
- Effects of Background Noise49
- Frequency Weighting50
- Weighting Nominal50
- Windscreen Corrections with QE7052 Microphone86
- AC/DC Output Characteristics (Section 5.16.1)86
- Cable and Radio Frequency Emission87
- Battery Voltage Range and Power Supply87
- Electrostatic Discharges87
- Directional Windscreen Corrections87
- Environmental Effects88
- Microphones88
- QE7052 Microphone Back Facing89
- QE7052 Microphone Side Facing91
- QE7052 Microphone with Windscreen Side Facing93
- QE7052 Microphone with Windscreen Back Facing95
- BK4936 Microphone Side Facing97
- BK4936 Microphone Back Facing99
- BK4936 Microphone with Windscreen Back Facing101
- BK4936 Microphone with Windscreen Side Facing103
- BK4936 Microphone Using Remote Preamp105
- BK4936 Microphone Using Windscreen & Remote Preamp107
- BK4936 Microphone with RICR Side Facing109
- BK4936 Microphone with RICR Back Facing111
- BK4936 Microphone with RICR and Windscreen Side Facing113
- BK4936 Microphone with RICR and Windscreen Back Facing115
- BK4936 Microphone with RICR and Remote Preamp117
- BK4936 Microphone with Remote Preamp, RICR, and Windscreen119

3M SE-401 - Frequency Weighting Curves; A-Weighting Nominal Response

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