Table Of Contents - BRUEL & KJAER 2707 Instructions And Applications

CONTENTS
1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. 1. Front Panel
2.2. Rear Panel
6
................................. 10
3. OPERATION ........................................ 13
3.1. Preliminary ................................. 13
3.2. Systems Interconnection . . . . . . . . . . . . . . . . . . . . . . 14
3.3. Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3. 1. Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.2. Switch-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.3. Warning Lights ......................... 19
3.3.4. Fault Rectification ...................... 19
3.3.5. Stand-by .............................. 21
3.4. Current Limit Time Constant ................... 22
3.5. Multiple Exciter Vibration Testing ............... 22
3.6. Very High Output Impedance ................... 23
3.7. Reduction of Background Noise at Exciter Table .... 24
3.8. Operation with reduced Exciter Field ............. 25
3.9. External Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4. DESCRIPTION ....................................... 31
4.1. General .................................... 31
4.2. Input Circuit ................................ 31
4.3. Preamplifier ................................ 31
4.4. Power Amplifier ............................. 33
4.5. Protective Circuits ........................... 36
4.5.1. Current ............................... 36
4.5.2. Displacement .......................... 37
4.5.3. Temperature ........................... 39
4.5.4. Exciter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40