Page 15
Product Information / Produktinformation
A6151
Shaft Vibration Monitor
Signal conditioning for characteristic values
The input signals are conditioned by adjusting amplifier, range
−
dependent amplifier, high
pass, and low pass prior to digitalization.
Range setting
Is determined in the configuration
Minimum measuring range
400 mVpp
Maximum measuring range
8000 mVpp
Frequency range
High pass filter
Butterworth filter 2
nd
order
−
Parameters can be set
0.2 Hz (
−
3 dB)
0.7 Hz (
−
3 dB)
−
Tolerance
±
20 %
Low pass filter
Butterworth filter 5
nd
order
Parameter range 10 Hz ... 200 Hz in 0.01 Hz
increments
Characteristic value formation
Depends on the configuration
2
−
channel operation
S1 and S2 separated characteristic values, optionally
in 0
−
P or P
−
P evaluation.
Maximum deflection S
max
S
max
= max sk (t);
sk
(
t
)
+
s
1
(
t
)
2
)
s
2
(
t
)
2
Ǹ
Maximum vibration amplitude S
ppm
S
ppm
= Max (s
p
−
p
1 or s
p
−
p
2 )
Current outputs
−
characteristic values
Characteristic value formation and evaluation depends on the functions specified in the
configuration.
Current output 1
−
I1+ / I1
−
z18 / b18 (0 V / common)
Current output 2
−
I2+ / I2
−
z20 / b20 (0 V / common)
Nominal range
0 ... 20 mA or 4 ... 20 mA, depending on the
configuration
−
Life zero operation
in 4 ... 20 mA operation you can specify via the
configuration that the output is set to 0 mA if a fault is
detected.
Precision / resolution
±
1 % of f.s.d. / 16 Bit
Per. load resistance
500
Ω
