Bently Nevada 3300/46, Operation Manual

Page: 23 / 86

Ramp Differential Expansion Monitor Operation
A 0
OK
0 8
DANGER
H
0
ALERT
0
N
R
0
BYPASS
84413-01
9
READ CHANNEL DIFFERENTIAL EXPANSION
THE MONITOR CONTINUOUSLY INDICATES THE DIFFERENTIAL EXPANSION SIGNAL MEASURED FROM
ZERO POSITION TO THE DIFFERENTIAL EXPANSION SIGNAL VALUE ON THE LEFT METER SCALE.
THE DIFFERENTIAL EXPANSION SIGNAL IS A COMPOSITE SIGNAL GENERATED FROM BOTH CHANNEL A
AND CHANNEL B PROBE INFORMATION.
CHANNEL A
PROBE
SHAFT
CHANNEL
PROBE
3 3 0 0 / 4 6
DIFFERENTIAL
EXPANSION MONITOR
3
N
C . 2
S . :
N
L -20 -
0 -
0 1 1 -
H- e -
R
o
T
A 8
BUFFERED TRANSDUCERS
1 0