Casella CEL CEL-450 - Manual (Page 5)

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 . . . . . . . . . . . . . 10
1.5 Description . . . . . . . . . . . . . . . . . . . . . 12
1.6 CEL-450 Sound Level Meters . . . . . . . . . . . . 14
1.7 CEL-490 Sound Level Meter . . . . . . . . . . . . 15
1.8 Instrument Power Supplies . . . . . . . . . . . . . 16
1.9 dB23 SoundTrack Software . . . . . . . . . . . . . 17
2. PRELIMINARY OPERATIONS . . . . . . . . . . . . 19
2.1
Select Instrument Configuration (Language,
Microphone Response Etc.) . . . . . . . . . . . . . 19
3. SELECT MEASUREMENT MODE,
TIMER SETTINGS & SETUP . . . . . . . . . . . . 23
3.1
Select Measurement Mode
(Bandwidth) . . . . . . . . . . . . . . . . . . . . . 23
3.2 Select Run Timing . . . . . . . . . . . . . . . . . . 23
3.3 Select Measurement Setup
(Factory- or User-Prepared Setups) . . . . . . . . . 27
3.3.1 Select Broadband Measurement Setup . . . . . . . 27
3.3.2 Select Narrow Band Measurement Setup . . . . . 32
4. ACOUSTIC CALIBRTION CHECK . . . . . . . . . . 37
4.1
Perform Acoustic Calibration Check . . . . . . . . 37
4.1.1 Automatic Calibration Check . . . . . . . . . . . . 38
4.1.2 Manual Calibration Check . . . . . . . . . . . . . . 41
5. OPERATION . . . . . . . . . . . . . . . . . . . . 45
5.1
Measurement . . . . . . . . . . . . . . . . . . . . 45
5.1.1 Start Measurement . . . . . . . . . . . . . . . . . 45
5.1.2 Broadband Measurement . . . . . . . . . . . . . . 46
5.1.3 Narrow Band Measurement . . . . . . . . . . . . 49
5.2 Recall Stored Data . . . . . . . . . . . . . . . . . 54
CEL-450/490 Operators Handbook - Page 5
Contents