Bently Nevada vb6 Datasheet

vb6 Portable Vibration Data Collector

Datasheet

Bently Nevada Machinery Condition Monitoring

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Description

The vb6 Portable Vibration Data Collector instrument is a
portable four channel, high resolution vibration data
collector. It is ergonomically designed and lightweight for all
day comfort. You can use this device for on-route as well as
off-route data collection.

The vb6 Portable Vibration Data Collector samples all four
channels simultaneously to provide recordings with up to
12,800 lines of resolution and up to 40 kHz Fmax. Our patented
adaptive settling algorithm and 6Pack recording system offer
quick, one-step data recording.

The data collector has plenty of storage and long battery life,
and is backed by a five year warranty.

The vb6 Portable Vibration Data Collector is one of Bently
Nevada hardware monitoring assets that work with System 1
Evolution software.

111M7155 Rev. E

The vb6 Portable Vibration Data Collector offers the
following features:

l Four channel simultaneous recordings
l 12,800 lines FFTresolution
l Supports triaxial sensors
l Supports 40 kHz Fmax
l 1 GB memory
l ≥ 95 dB dynamic range
l Supports voltage-output sensors
l Spectrum and waveform recordings
l Demodulation for early detection of rotating machinery

problems such as bearing faults

l Unique 6Pack recording system

vb6 Portable Vibration Data Collector
Datasheet 111M7155 Rev. E

l User-defined recordings for temperature,

pressure, mass flow, force and power
l Cable test mode
l Option to add flex features such as

balancing and Remote Comms
l Upgradable Proflash system and free

firmware updates for 5 years
l Five-year warranty on the instrument

hardware

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vb6 Portable Vibration Data Collector
Datasheet 111M7155 Rev. E

Parameter Indication

Specifications

Sensors

Sensor input

Compatible
sensor types

AC coupled
range

DC coupled
ranges

Connectors

Analog to
digital
conversion

Sensor
excitation
current

Sensor
detection

Tachometer Sensor (Optional)

Sensor type

Laser sensor
range

Tachometer Input

Supported
sensor types

Power supply
to sensor

TTL pulse
rating

Keyphasor
thresholds

Speed range

Accuracy ± 0.1 %

Four channels Simultaneous
sampling

Accelerometer, velocity, displacement,
current, 4 to 20 mA, voltage output

16 V peak-peak Allows for ± 8 V
sensor output swing (± 80 g)

0 V to 20 V, -10 V to 10 V, -20 V to 0 V
and readings from voltage output
sensors

1 x BNC (CH1) 1 x LEMO (CH2 / CH3 /
CH4)

Safety feature:Break-free inline
connector

24-bit ADC

0 mA or 2.2 mA (configurable), 24 V
maximum

2.2 mA required power for IEPE/ICP
type accelerometer

Warns if short circuit or not connected

Laser sensor with reflective tape
Sensor triggers on beam reflection

10 cm to 2 m nominal Range
depends on size of reflective tape

Laser Tach, Contact, TTL Pulse,
Keyphasor Instrument has optically
isolated input

5 V, 50 mA

3.5 V (4 mA) min 28 V (5 mA) max
Off-state 0.8 V

7.7 ± 0.5 V 13.2 ± 0.8 V 18.5 ± 1 V

Nominally 8 V, 13 V, 18 V
10 RPM to 300,000 RPM (0.2 Hz to 5

kHz)

Pulse width at least 0.1 ms

> 1000 g (10,000 m/s2) > 1000 in/sec

Maximum
levels
(peak)

Dynamic
signal
range

Harmonic
distortion

Units

Magnitude
& cursors

Base
accuracy

High
frequency
attenuation

AC
coupling
attenuation

Attenuation
due to
Integration
(normal
mode)

Attenuation
due to
Integration
(low
frequency
mode)

(25,000 mm/s) > 20 in (500 mm) >
10,000 Amps

Effective limit is sensor sensitivity and
output voltage

> 95 dB

typical at 400 line resolution
Less than -70 dB typical

Other distortions and noise are lower
g or m/s2 or adB in/s or mm/s or vdB

mil or mm or µm amps, user-defined

0-peak, peak-peak or RMS Auto-scale
by 1000x when required

US and SI options for adB and vdB
Overall RMS value Waveform True pk-

pk Dual cursors Harmonics

Digital readouts on chart
± 1% of readings approximately 0.1 dB

For AC signal: % of reading For DC
signal: % of full scale

≤ 0.1 dB 100 Hz to 10 kHz ≤ 3 dB >10 kHz to
40 kHz

Attenuation tolerances are in addition
to base accuracy.

≤ 0.1 dB 10 Hz to <100 Hz ≤ 3 dB 1 Hz to <10
Hz

≤ 0.1 dB 10 Hz to <100 Hz ≤ 1.5 dB 1 Hz to
<10 Hz

Values apply to single integration.
(Acceleration to velocity)

Double the values for double
integration (Acceleration to
displacement)

≤ 0.1 dB 1 Hz to <100 Hz
≤ 1.5 dB 0.2 Hz to <1 Hz

Applies when coupling = DC and Fmax
≤ 100 Hz

Waveform Display

Number of
samples

Time scale

1024, 2048, 4096, 8192, 16,384, 32,768

10 ms to 512 seconds or orders based

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