BRUEL & KJAER 2716 User Manual

Power Amplifiers Types 2716 and 2716-C – User Manual 18
5.4 Indicators
Fig.5.1
Front indicators
The two bottom, green ‘On’ LEDs indicate that the output circuits are receiving the correct
rail voltage. The ‘–25dB’ LEDs illuminate if the output signal is greater than –25dB (with
0dB as reference to full output power). These LEDs also act as signal-present indicators.
The Clip/limit indicator tells when the amplifier output is clipping or limiting. It has two
different indication statuses:
• if the clip limiter is engaged it has a short time constant and it illuminates briefly
• if the clip limiter is not engaged it has an increased time constant and it illuminates for a
longer period
The yellow LEDs indicate if any protection circuits are activated. These are described in
Chapter 6.
Gain
-10
-7
-5
-3
-1
0
dB
CH.A
-80
-40
-20
-16
-12
Prot
Clip
-25
On
Gain
CH.B
-10
-7
-5
-3
-1
0
dB
-80
-40
-20
-16
-12
030043
BE169212.book Page 18 Tuesday, January 23, 2007 9:00 AM

BRUEL & KJAER 2716 Specifications

General

Brand	BRUEL & KJAER
Model	2716
Category	Amplifier
Language	English