vb Balancer Series Portable Instruments
Datasheet

Bently Nevada Machinery Condition Monitoring

132M3167 Rev. C

Description
Unbalanced rotating machinery can cause high levels ofvibration which can degrade bearing life and cause majormechanical complications. Reduce the possibility of outages
and downtime with our vbBalancer and vbBalancer+portable instruments. Used on-site, they detect unbalanced
machinery and help you diagnose and immediately fix issues
before they become serious, expensive problems.
After you input a few basic parameters describing a machine,use vbBalancer to identify current unbalance levels anddetermine if machine is operating within ISO 1940 standards.
If a machine needs balancing, use vbBalancer to identify themass and position of permanent balance weights.
To verify that balancing is working, the vbBalancer Series
record basic vibration spectra. Use vbBalancer to view
spectra before and after balancing to validate broad-bandimprovement.
The two-channel vbBalancer instrument has two
accelerometer inputs for simultaneous recordings. The fourchannel vbBalancer+ instrument uses vibration readings
from four accelerometer inputs to calculate the optimum
balance weights to apply to two correction planes,minimizing total machine vibration. This enables you, forexample, to monitor both horizontal and vertical axes on a
two-bearing machine, giving you confidence that thebalance you applied to one axis has not worsened vibrationon the other.
The vbBalancer Series provides recordings with up to 800
lines of resolution and up to 5 kHz Fmax. The vbBalancer
Series has plenty of storage capacity and features all-day
battery life. We back these instruments with a five yearwarranty.

vb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. CThe vbBalancer Series offers:llllllllllll

Two or four-channel simultaneousrecordings
Dual-plane balancing
Laser speed sensor for machine speed
and vibration phase angle detection
Keyphasor tach mode (vbBalancer+only)
800 line vibration spectra with Fmax up to5 kHz
1 GB memory≥ 95 dB dynamic range
Both instruments support IEPE
Accelerometer sensors, and thevbBalancer+ additionally supportsvelocity and displacement sensors
The vbBalancer+ additionally supports
these balancing-related analysis
features: coast-down and run-up, bumptest, orbit plot
Sensor cable self-test feature
USB host port for data transfer to external
USB drive
Upgradable Proflash system and freefirmware updates for five years

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vb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. C

Specifications
Sensors
Parameter

vbBalancer

vbBalancer+Notes

Channels(simultaneous)

TwoFourSimultaneous sampling

Compatible
sensor types

Accelerometer

Accelerometer,velocity anddisplacement

AC coupled
rangeConnectors

Analog to digitalconversion
Sensorexcitation
current
Sensor detection

16 V peak-peak
2 x BNC (CH1/CH2)

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

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
Warns if short circuit or not connected

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2.2 mA required for IEPE/ICP®-type
accelerometervb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. CTachometer
Parameter

vbBalancervbBalancer+Notes

SensorLaser sensor withreflective tapeLaser sensor withreflective tapeSensor triggers on beam reflection

Laser sensor
range
Other sensor
types
supported

10 cm to 2 m nominal
Contact, TTL, pulse

Dependent on size of reflective tapeContact, TTL, pulse,
Keyphasor

Power supply
to sensor

5 V, 50 mA

TTL pulse rating

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

Keyphasor*
thresholds
Speed range
Accuracy

N/A

7.7 ± 0.5 V 13.2 ± 0.8
V 18.5 ± 1 V

10 RPM to 300 000 RPM (0.2 Hz to 5 kHz)+/- 0.1%

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Optically isolated output

Nominally 8 V, 13 V, 18 V
Pulse width at least 0.1 ms

vb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. C

Parameter Indication
Parameter

vbBalancer

vbBalancer+

Dynamic
signal range> 95 dB

Harmonicdistortion

Less than -70 dB typicalUnits

Notes
Typical at 400 line resolution

g or m/s2 or adB
in/s or mm/s or vdB
mil or mm or µm

Other distortions and noise are lower
0-peak, peak-peak or RMS
Auto-scale by 1000x when required. US &SI options for adB & vdB

Magnitude &cursors

Overall value: RMS, waveform true pk-pk,
dual cursors, harmonics

Base accuracy± 1% (approximately 0.1dB)

High frequency
attenuation≤ 0.1 dB 100 Hz to 5 kHz

AC coupling
attenuation≤ 0.1 dB 10 Hz to <100 Hz≤ 3 dB 1 Hz to <10HzAttenuation
due toIntegration≤ 0.1 dB 10 Hz to <100 Hz≤ 1.5 dB 1 Hz to <10 Hz

Digital readouts on chart% of reading
Attenuation tolerances are in addition tobase accuracy

Values apply to single integration(acceleration to velocity). Double thevalues for double integration(acceleration to displacement).

Spectrum Display
Parameter

vbBalancer

vbBalancer+

Fmax ranges

25, 50, 100, 125, 150, 200, 300, 400, 500, 600, Or equivalent CPM values or orders800,1000, 1200, 1600, 2000, 2500, 3000,
based from 1X to 999X
4000, 5000 Hz

Fmin possible
range

0 to Fmax

Resolution

800 lines

Frequency
scale

Hz, CPM, Orders

Amplitude
scale

Acceleration, velocity or displacement

Window,overlap,
averaging

Hanning, 50%, 4 x LinearNotes

Instrument zeroes all spectral lines
below Fmin

Linear scale with zooming

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Linear or log scales, auto or manual
scalingvb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. C

Waveform Display
Parameter

vbBalancer

vbBalancer+

Number ofsamples

2048

Time scale

160 ms to 32 seconds

Notes

Or orders based from 1 to 999 revs

Data Logging
Parameter

vbBalancer

vbBalancer+

Data storage

1 GB

Data storage
structure

Folders/ machines

Max. folder size

10 000 measurement locations

Notes

No limits are applied, 50 character
names

BalancingParameter

vbBalancer

vbBalancer+

Planes andSensors

Two planes
Two sensors

Two planes
Four sensors

Speed range

30 to 60 000 RPM

Measurement
typeAcceleration, velocity, displacement

Weight modes

Angle 0° to 360°
Fixed position
Circumference arc

Remove trial
weights

User choice

Manual dataentry

Yes

Storage
Channelselection

Examples: weights on fan blades, linear
distance around circumference
Removed weight automatic
recalculation
Allows re-entry of previous balance jobs

Against machines in data structure
Single or dual
channelNotes

Up to four channels
simultaneous

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No limits appliedvb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. C

Display and Communication
Parameter

vbBalancer

Display
Resolution andsize

Graphic Grayscale LCD
480 x 320 (HVGA), 5.5” (140 mm)

Supportedlanguages

Notes
White LED back light
Readable in direct sunlight

EN, ZH, FR, DE, JA, PT, RU, ES

Communication
with PC
USB host port

vbBalancer+

USB and ethernet

PROFLASH to upgrade instrument
firmwareUSB 2.0, supplying 5 V, 250 mA

Save folders to USB flash drive

Battery and Charger
Parameter
Battery typevbBalancer

vbBalancer+

Notes

Custom Lithium Ion pack
7.4 V, 4500 mAh

Operating time

10 hoursBack light on (60 second time-out)

Charger typeInternal charging, automatic control

Charge rate

3 A nominal

External power pack 12 V DC, 3 A output
Three hours for complete charge

MechanicalParameter

vbBalancer

Size

9.9” W x 5.8” L x 2.4” H (252 x 148x 60) mm

WeightvbBalancer+

2.7 lb (1.2 kg)

Notes

Includes battery and strap

Environmental Limits
Parameter

vbBalancer

vbBalancer+

Notes

Operatingtemperature

14 °F to 122 °F (-10 to 50) °C

Storagetemperatureand humidity-4 °F to 140 °F (-20 to 60) °C
95% relative humidity

If storage exceeds one month: up to 95 F(35 C), 85% RHRuggedness

4’ (1.2 m) drop onto concrete, IP65

Procedure: 26 drops following MIL-STD810F-516.5-IV

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vb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. CCompliance and Certifications

Hazardous Area Approvals

FCC

For the detailed listing of country andproduct-specific approvals, refer tothe Approvals Quick Reference Guide(108M1756).

This device complies with part 15 of theFCC Rules. Operation is subject to thefollowing two conditions:ll

For additional technicaldocumentation, please log in tobntechsupport.com and access theBently Nevada Media Library.

This device may not cause harmfulinterference.
This device must accept any
interference received, includinginterference that may cause
undesired operation.

CSA

EMC
EN 61326-1: 2012
EN 61326-2-3: 2012
EMC Directive 2014/30/EU

Electrical Safety
EN 62133: 2002
LV Directive 2014/35/EU

RoHS
RoHS Directive 2011/65/EU

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CSA Class I,Division 2 (GroupsA, B, C, D)

vb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. C

Ordering Information

108M404901

USB flash drive
contains vbXManager andinstallation
guide together
with reference
guides andbrochures for
vbSeries andother products.

1ACCL0547
or 200350 *Straight
accelerometer

2 for
vbBalancer
4 for
vbBalancer+

138M7748Transducer
cable, 4 ft
straight

2 for
vbBalancer
4 for
vbBalancer+

113M5585

Accelerometer
magnetic base

2 for
vbBalancer
4 for
vbBalancer+

For the detailed listing of country andproduct-specific approvals, refer tothe Approvals Quick Reference Guide(108M1756).
For additional technicaldocumentation, please log in to
bntechsupport.com and access theBently Nevada Media Library.
You can order all accessories included in the
Basic Kit, Balancing Kit, and Zone 2 Laser Tach
kit separately.

VBBALANCER-AAVBBALANCERPLUS-AA
A: Agency Approval01

MAGF0104

CSA / NRTL / C (Class 1, Division 2)

Basic Kit

CBTB0278

We offer the vb Balancer Series Portable
Instruments instrument in a basic kit with theoption to purchase System 1 or Ascent softwareand license separately.

Triple BNC
adapter

1 for
vbBalancer+

CABU0213

USB datatransfer cable

1110M8172

LEMO-BNC TTLTach/Keyphasorcable1

PLUS0230

Category A
power plug
USA / Canada

1

PLSA0241

Category D
power plug
South Africa /India

1

PLAU0228

Category M
power plug
Australia / New
Zealand / China

1* Kit items with multiple part numbers
listed have limited regional
availability due to certification
requirements.
PartNumber

Description
vbBalancer is a
two-channel
vbBalancer+ isa four-channel
portable datacollector

Qty
1

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vb Balancer Series Portable Instruments
Datasheet

PLHK0245

Category G
power plug
Hong Kong / UK1

Category C
power plug
Europe1

vbx instrument
carry bag1

109M238402

Neck strap withSensor Keeper

1108M4044

AC power
adapter

1108M3536

SCOUT100_Series 1and vbSeries
Quick_Start_Guide

108M4048

vbBalancer &vbBalancer+Instrument
Reference_Guide

PLEU0229

CBVB0032

132M3167 Rev. C

Zone 2 Laser Tach Kit - LASA0315
PartNumber

Qty

108M4064

Laser Tacho Holder

1

108M4066

Circlips - 20Mm Stainless

1108M4067

Arp115 O-ring

2108M4069

Laser Tach Zone 2 rated

1

1

Miscellaneous Parts

Accessory Kits

Part
NumberBalancing Kit - 108M4050-04

MAGM0064

PartNumber

Description

DescriptionQty

113M5529-01

Reflective tape, one roll,
60 cm

1LASA0315

Laser Tach Kit Zone 2rated

1CBL50216

Laser cable, five meters

1MAGA0063

Laser magnetic stand1

CB5G0024

Sensor cable, fivemeters, green

2

CB5R0025

Sensor cable, fivemeters, red

2

CBBL0026

Carrying case for the kit

1

Description
Accelerometer magnetic baseMale connection

10/11

VBMR0222

Stainless safety rings (one pair)

100M5828

vbSeries hard case

DTC70262

vbSeries dust cover

BATT0575

Replacement battery pack, LiIon 7.4 V 5 Ahvb Balancer Series Portable Instruments
Datasheet

132M3167 Rev. CCopyright 2024 Baker Hughes Company. All rights reserved.

Bently Nevada, Keyphasor, M2, SCOUT, System 1 and Orbit Logo are registered trademarks of Bently Nevada, a Baker
Hughes business, in the United States and other countries. The Baker Hughes logo is a trademark of Baker Hughes
Company. All other product and company names are trademarks of their respective holders. Use of the trademarks
does not imply any affiliation with or endorsement by the respective holders.
Baker Hughes provides this information on an “as is” basis for general information purposes. Baker Hughes does notmake any representation as to the accuracy or completeness of the information and makes no warranties of any
kind, specific, implied or oral, to the fullest extent permissible by law, including those of merchantability and fitness
for a particular purpose or use. Baker Hughes hereby disclaims any and all liability for any direct, indirect,
consequential or special damages, claims for lost profits, or third party claims arising from the use of theinformation, whether a claim is asserted in contract, tort, or otherwise. Baker Hughes reserves the right to makechanges in specifications and features shown herein, or discontinue the product described at any time without
notice or obligation. Contact your Baker Hughes representative for the most current information.
The information contained in this document is the property of Baker Hughes and its affiliates; and is subject tochange without prior notice. It is being supplied as a service to our customers and may not be altered or its content
repackaged without the express written consent of Baker Hughes. This product or associated products may becovered by one or more patents. See Bently.com/legal.

1631 Bently Parkway South, Minden, Nevada USA 89423
Phone: 1.775.782.3611 (US) or Bently.com/support
Bently.com

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