Specifications - B&K 2625 Instructions And Applications

Vibration pick-up preamlifier
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Input Resistance:
Input Capacitance:
Frequency Range:
Max. Input Signal:
Gain:
Noise:
Load Impedance:
Output:
Harmonic Distortion:
Power Supply:
Batteries:
Current Consumption:
5. Specifications
Varies from 450 MQ at 20 dB gain to 3000 MQ
at "0 dB".
14 pF.
Ace.
Vel. 3.16
m/sec
»
0.316
»
))
0.0316
))
Displ. 1000
mm
))
100
))
10
1
))
0.1
))
»
0.01 ))
±
7 V at 0 dB gain
±
700 V at - 40 dB
±
0.7 V at 20 dB gain
±
70 V at - 20 dB
Fixed 0 and -40 dB.
1 Hz-
35kHz
1 Hz-
4kHz
10Hz-
10 kHz
100 Hz-
30 kHz
1 Hz-
30 Hz
3Hz-
100 Hz
10Hz-
300Hz
30Hz- 1000 Hz
100 Hz- 3000 Hz
300 Hz -10000 Hz
Variable 0 to 20 dB and - 40 to - 20 dB.
Max. 20
11-V
from 2 Hz - 40 kHz with 1 nF across
input (referred to input).
Integration Networks: Min. 1 MQ, max. 150 pF ·(in
position ZR 0024).
Power Amplifier. Min. 3 kQ.
Max.
±
7 V peak, 13 V DC.
Output impedance
<
30 Q.
Less than 1
%
with 5
V
RMS input at 0 dB, accelera-
tion.
External 28 V DC source (for example ZR 0024) or
internal 3
X 9 V batteries (not included).
3 X 9 V. IEC Recommendation 86-2, 6 F 22, size
25.5
X
17.5 X 48.5 mm.
Approximately 2 rnA in position ZR 0024.
Approximately 7 rnA in position BATT. or EXT.
POWER. Internal battery life
..J\..
7 hours.
17

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