
Contents
Chapter ................... Page
1. INTRODUCTION . . . . . . . . . . . . . . . . . . 7
1.1 Display & Keys .................... 7
1.2 Quick Edit ....................... 9
1.3 Install Microphone, Preamplifier & Batteries .... 10
1.4 Switch Instrument ON/OFF ............. 11
1.5 Description ..................... 12
1.6 CEL-440 Sound Level Meters ............ 14
1.7 CEL-480 Sound Level Meter ............ 16
1.8 Instrument Power Supplies ............. 16
1.9 dB21 & dB22 SoundTrack Software ........ 17
2. PRELIMINARY OPERATIONS . . . . . . . . . . . . 19
2.1 Select Instrument Configuration (Language,
Microphone Response Etc.) ............. 19
2.2 Perform Acoustic Calibration Check ........ 21
3. SELECT MEASUREMENT MODE & SETUP . . . . . 25
3.1 Select Measurement Mode
(Bandwidth & CEL-480 Run Timing) ........ 25
3.2 Select Measurement Setup
(Factory- or User-Prepared Setups) ......... 28
3.2.1 Select Broadband Measurement Setup ....... 28
3.2.2 Select Narrow Band Measurement Setup ..... 33
4. OPERATION . . . . . . . . . . . . . . . . . . . . 37
4.1 Measurement .................... 37
4.1.1 Starting Measurement ............... 37
4.1.2 Broadband Measurement .............. 38
4.1.3 Narrow Band Measurement ............ 41
4.2 Recall Stored Data & Print Hard Copy ........ 44
4.3 Delete Stored Data ................. 48
4.4. Format Memory ................... 49
4.5 Use With Tape and DAT Recorders
(Including Calibration For Line Input) ........ 50
4.5.1 Recording ...................... 51
Contents
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