Baltech VP-3450 User manual

2016
BALTECH VP-3450
device for bearing diagnostics
using shock pulse method
OPERATION MANUAL

Device for bearing diagnostics using shock pulse method
Operation manual
Before you start using the device for bearing diagnostics using shock
pulse method read this operation manual carefully. Baltech doesn’t
bear responsibility for any damages occurred due to nonobservance
of the instructions given in this operation manual.
The information contained in this operation manual is subject to change
without notice.
It is strictly forbidden to use, copy or translate this operation manual without
prior written consent of Baltech.
The publisher doesn’t bear responsibility for any damages, direct or indirect,
that might be originated from use of the information contained in this
operation manual.
Copyright BALTECH, 2013.
BALTECH registered trademark

Device for bearing diagnostics using shock pulse method
Operation manual
Content
3
Content
Content.............................................................................................................3
Table of figures ...............................................................................................4
1. Introduction.................................................................................................5
1.1. Conventions..........................................................................................................................5
2. Safety requirements....................................................................................6
3. Technical description .................................................................................7
3.1. Application ............................................................................................................................7
3.2. Technical characteristics ......................................................................................................8
3.3. Delivery set...........................................................................................................................8
3.4. Design and operation............................................................................................................9
3.4.1. Operation principles...........................................................................................................9
3.5. Marking, preservation and packing.....................................................................................13
4. Operation...................................................................................................14
4.1. Operation conditions:..........................................................................................................14
4.2. Preparation to operation.....................................................................................................14
4.2.1. Unpacking and installation...............................................................................................14
4.2.2. Operation modes .............................................................................................................15
4.3. Use of the tester BALTECH VP-3450.................................................................................20
4.3.1. Establishment of equipment monitoring system..............................................................20
4.3.2. Measurement procedure..................................................................................................21
4.3.3. Information analysis.........................................................................................................24
5. Maintenance ..............................................................................................31
5.1. Tester cleaning ...................................................................................................................31
5.2. Battery replacement............................................................................................................31
6. Storage and transportation......................................................................32
7. Warranty.....................................................................................................33

Device for bearing diagnostics using shock pulse method
Operation manual
4
Table of figures
Table of figures
Figure 3-1. Appearance………………………………………………………………………….............7
Figure 3-2. Bearing wear development………………………………………………………………..9
Figure 3-3. Shock pulse dB values……………………………………………………………………..10
Figure 3-4. Control elements…………………………………………………………………………….11
Figure 4-1. Direct change of the initial dBi value…………………………………………………16
Figure 4-2. Setting rpm and diameter. Step 1…………………………………………………….16
Figure 4-3. Setting rpm and diameter. Step 2…………………………………………………….17
Figure 4-4. Shock pulse measurement……………………………………………………………….17
Figure 4-5. Measurement range set…………………………………………………………………..19
Figure 4-6. Headphone mode……………………………………………………………………………20
Figure 4-7. Measurement point selection……………………………………………………………22
Figure 4-8. Follow-up form……………………………………………………………………………….23
Figure 4-9. Bearing good condition......................................................................25
Figure 4-10. Bearing damage at an early stage of development…………………………..26
Figure 4-11. Bearing with severe damage………………………………………………………….26
Figure 4-12. Periodic shock pulses…………………………………………………………………….27
Figure 4-13. Cyclic shock pulses………………………………………………………………………..27
Figure 4-14. Improper lubrication mode…………………………………………………………….28
Figure 4-15. Cavitation or similar problems………………………………………………………..28
Figure 4-16. Irregular measurement results……………………………………………………….29
Figure 4-17. Inconsistent shock pulse values of damaged bearings………………………30

Device for bearing diagnostics using shock pulse method
Operation manual
Section 1 Introduction
5
1. Introduction
This operation manual is intended to familiarize users with application, design,
operation principle, operation instructions, measurement performance, safety
requirements and requirements to transportation and storage of the device for bearing
diagnostics using shock pulse method BALTECH VP-3450.
Note
Baltech wants our customers to be satisfied with the device for bearing
diagnostics using shock pulse method BALTECH VP-3450. Therefore if you
have any questions do not hesitate to address to us at any time.
1.1. Conventions
Below are the conventions used in this operation manual and intended to
emphasize the text.
Note
Note paragraphs contain special comments and instructions.
Attention!
Attention paragraphs warn you about actions that can injure you or the
device.
Caution!
Caution paragraphs warn you about actions that can result in serious injury or
the device damage.

Device for bearing diagnostics using shock pulse method
Operation manual
6
Section 2 Safety requirements
2. Safety requirements
When working with the tester strictly observe the safety requirements.
Caution!
Nonobservance of the safety requirements may result in serious injury or
failure of the device. Strictly observe the following requirements:
Do not use the device if it has any damages;
Use the device only for its intended purposes.

Device for bearing diagnostics using shock pulse method
Operation manual
Section 3 Technical description
7
3. Technical description
3.1. Application
The device for bearing diagnostics using shock pulse method BALTECH VP-
3450 (Figure 3-1) is intended to perform monitoring of rolling bearings of
rotatory machinery, check of equipment mechanical condition for mechanical
damages.
Figure 3-1. Appearance.

Device for bearing diagnostics using shock pulse method
Operation manual
8
Section 3 Technical description
3.2. Technical characteristics
Table 3-1
Characteristics
Value
Measurement range, dBsv
-9 ~ 99
Resolution, dBsv
1
Maximum absolute error, ≤dBsv
±2
Supply voltage , V
9
Dimensions, mm
255х105х60
Weight, kg
0,8
3.3. Delivery set
Table 3-2
No.
Name
Q-ty
Appearance
1
Measurement unit
1
2
Sensor with cable
1
3
Headphones
1
4
Screw driver
1
5
Battery, АА
6
6
Checklist
1
7
Operation manual
1
8
Transportation case
1
9
Package
1

Device for bearing diagnostics using shock pulse method
Operation manual
Section 3 Technical description
9
3.4. Design and operation
3.4.1. Operation principles
Shock pulse method
Installation, operation, repair and maintenance are main factors that influence
bearing life. Periodic bearing monitoring during its operation is the best way
to prevent damage and costly repair. There are several bearing monitoring
methods: temperature measurement, vibration measurement, sound
measurement and shock pulse method. The shock pulse method allows
measuring bearing condition during normal bearing operation without
influence of vibration generated by a machine or bearing. The shock pulse
method allows timely detecting bearing defects resulted from improper
manufacture, improper assembly, improper lubrication and scratches on
rotation surfaces.
Bearing condition is determined by the shock pulse method as follows: initially
a new bearing has a low shock pulse value and if this value increases up to
1,000 times of the initial shock pulse value, it means that the bearing life has
expired.
Figure 3-2. Bearing wear development.
Shock pulse strength depends on a shock velocity V, if A represents a peak
shock value, then there is a relation of A = f (V), while the shock velocity V
also depends on a bearing size, rotation speed and defect size.

Device for bearing diagnostics using shock pulse method
Operation manual
10
Section 3 Technical description
The shock pulse method uses several decibel values (Figure 3-3):
Figure 3-3. Shock pulse dB values.
dBsv (dB-shock value) –the absolute shock pulse dB value.
dBi (dB-initial)- the initial dB value. This is an average value obtained from
a variety of tests and measurements conducted on new bearings, and
correction of different bearing operation and their rotation speed according to
the dBn standard.
dBn (dB-normalized)- the standard dB value. It is a standardized
measurement and scale unit used as a standard to estimate bearing condition.
dBm (dB-maximum value)- the maximum dB value obtained from a
bearing shock pulse measurement and used to measure the bearing damage
severity.
dBc (dB-carpet value)- the carpet dB value used to measure bearing
surface roughness, installation and lubrication condition.