VAST DC-23 User manual

Vibration Analyzer
Data collector
DC-23
User Manual
© 2018, Association VAST, Ltd

Vibration Analyzer + Data Collector DC-23 User manual
2

Vibration Analyzer + Data Collector DC-23 User manual
3
Vibration Analyzer and Data Collector DC-23 is a portable battery powered dual channel device
used for condition monitoring purposes. It allows simultaneous measurements of a number of
parameters like vibration, rotation speed, etc.
Contents
Uses .................................................................................................................................................5
1. Kit............................................................................................................................................6
2. Specifications ..........................................................................................................................7
3. Description ..............................................................................................................................8
3.1. Front panel and controls..................................................................................................8
3.1.1. Description of the buttons .........................................................................................8
3.2. Connection sockets..........................................................................................................9
3.3. Switching on the DC-23 ................................................................................................10
3.4. Switching off the DC-23 ...............................................................................................11
3.5. Emergency shutdown ....................................................................................................11
4. Operation...............................................................................................................................12
4.1. General directions and safety precautions.....................................................................12
4.2. Transducers....................................................................................................................12
4.3. Connection to the PC.....................................................................................................12
4.4. User interface.................................................................................................................12
4.5. Getting started ...............................................................................................................14
4.5.1. The DC-23 setup......................................................................................................14
4.5.1.1. Inputs setup ......................................................................................................15
4.5.1.2. Test measurements setup..................................................................................18
4.5.1.3. Date and Time setup.........................................................................................19
4.5.1.4. Settings.............................................................................................................20
4.5.1.5. Measurement Settings......................................................................................21
5. Data collector mode. Route maps..........................................................................................22
5.1. Route maps....................................................................................................................22
5.2. Data collection...............................................................................................................22
5.3. Review Data ..................................................................................................................26
6. Analyzer mode.......................................................................................................................30
6.1. Analyzer.........................................................................................................................30
6.2. Measurements................................................................................................................30
6.3. Review measured data...................................................................................................32
7. Applications...........................................................................................................................37
7.1. Tachometer....................................................................................................................37
7.2. Balancing.......................................................................................................................37
7.2.1. Machine configuration ............................................................................................38
7.2.2. Balancing configuration..........................................................................................41
7.2.3. Initial vibration measurement .................................................................................41
7.2.4. Trial weight installation and trial runs ...................................................................44
7.2.5. Correction weight calculation.................................................................................45
7.2.6. Next trial weight installation and trial runs............................................................45
7.2.7. Next correction weight calculation .........................................................................46
7.2.8. Correction weight installation and final measurements .........................................47
7.2.9. Balancing report......................................................................................................49
7.3. Run-up \ Coast down.....................................................................................................50
7.4. Shock.............................................................................................................................52
8. Data exchange........................................................................................................................55

Vibration Analyzer + Data Collector DC-23 User manual
4

Vibration Analyzer + Data Collector DC-23 User manual
5
Uses
DC-23 vibration analyzer is a portable dual-channel battery-operated vibration analyzer and data
collector. The functions of this unit include vibration data processing, spectrum analysis and
recording (storage). Additional machine commissioning functions include balancing, shock pulse
analysis, run-up\coast-down analysis.
The DC-23 records measurement data for further condition monitoring diagnostics and condition
forecast of rotating machines based on vibration parameters.
The DC-23 is operated with IEPE type piezoelectric vibration transducers (accelerometers)
connected to A and B input sockets of the unit. Additionally it can be used with a tacho (FD-2
type) for measuring rotation speed and phase of the monitored machines. Use the "Tacho" input
socket for tacho connection.
The key functions of the DC-23 include:
oData collection according to the route map loaded from the external PC;
oVibration analyzer;
oMachine balancing;
The DC-23 is designed to perform the following measurements:
oautospectra;
oenvelope spectra;
ooverall vibration level in the specified frequency band with measurement of the following
values:
root mean square (RMS);
peak (PEAK);
peak-to-peak (Peak-Peak);
peak factor (PEAK factor);
peak equivalent (1,414×RMS);
peak-to-peak range equivalent (2,82×PTP);
kurtosis
orotor rotation speed.
oamplitude and phase on the rotation speed and its harmonics
otime waveform signal
oconstant percentage wideband spectra (1/1, 1/3, 1/6, 1/12 octave spectra)
ocross spectra
oorbits of the shaft rotation (using proximeters (not included in the DC-23 set)
oamplitude-phase-rotation speed during machine run-in and coast-down
oshock spectrum analysis
obalancing in own supports (up to 4 balancing planes, 5 measurement points, 3 directions)

Vibration Analyzer + Data Collector DC-23 User manual
6
1. Kit
DC-22 vibration analyzer kit content is listed in table 1 below.
Table 1. Standard configuration.
Item
№
Description
Quantity
Notes
1
DC-23 vibration analyzer
(basic unit)
1
2
DM-2 magnetic holder
2
3
603V01 vibration transducer
2
4
Interface cable
RC76-21-1a (yellow)
1
1.5 meters
5
Interface cable
RC76-21-1а(green)
1
1.5 meters
6
Interface cable
RC76-21-5a (yellow)
1
5 meters
7
Interface cable
RC76-21-5а(green)
1
5 meters
8
FD-2 tacho
1
9
Interface cable
KMM-21-1
1
1.5 meters
10
Interface cable
KMM-21-10
1
10 meters
11
SMD-2 holder
1
12
SA-23 charger
1
13
Ethernet Interface cable
1
14
Ethernet to USB adapter
1
15
DC-23 protective case
1
16
DC-23 system report
1
17
Large kit case
1
18
USB memory stick
1
19
headset for DC-23 unit
1

Vibration Analyzer + Data Collector DC-23 User manual
7
2. Specifications
Number of channels
-Vibration
-Tacho
2
1
Voltage range on linear input
-5V \ +5V
Vibratory acceleration measurement range (RMS), m/s2:
for 1,02 mV/(m∙s-2) rated sensitivity;
for 3,06 mV/(m∙s-2) rated sensitivity;
for 10,2 mV/(m∙s-2) rated sensitivity;
from 0,1 through 3400
from 0,1 through 1100
from 0,1 through 340
Vibratory velocity range (RMS), mm/s:
for 1,02 mV/(m∙s-2) rated sensitivity;
for 3,06 mV/(m∙s-2) rated sensitivity;
for 10,2 mV/(m∙s-2) rated sensitivity;
from 0,1 through 6900
from 0,1 through 2300
from 0,1 through 690
Vibratory displacement range (RMS), µm:
for 1,02 mV/(m∙s-2) rated sensitivity;
for 3,06 mV/(m∙s-2) rated sensitivity;
for 10,2 mV/(m∙s-2) rated sensitivity;
from 0,5 through 54900
from 0,1 through 18000
from 0,1 through 5400
Rotation speed, rpm
from 120 through 60000
Frequency range, Hz:
for vibratory acceleration, velocity and displacement RMS measurement;
in spectral analysis.
from 2 through 1000
from 10 through 1000
from 10 through 2000
from 1 through 51200
Full scale frequencies of spectral analysis subranges, Hz:
25, 50, 100, 200, 400, 800,
1600, 3200, 6400, 12800,
25600, 51200
Basic relative error range for vibratory acceleration, velocity and displacement
control at basic frequency, %
± 3
Number of spectral lines
400 - 51200
GOST 17168-82 class 3 1/3 octave band filter medium frequencies in envelope
mode, Hz
1000, 1250, 1600, 2000,
2500, 3200, 4000, 5000,
6400, 12800, 20000
1/1 octave filter medium frequencies, Hz
50, 100, 200, 400, 800,
1600, 3200, 6400, 8000,
12800, 16000
Band filter frequency response for vibratory acceleration, velocity and
displacement RMS measurement
under GOST ISO 2954-97
Spectral analysis dynamic range, dB, min.
100, not less
Channel interference, dB, max.
-100
Operating conditions:
ambient temperature range, ºС
relative air humidity range, %
from -20 through +50
from 30 through 90
Size (length × width × depth), mm
194×143×39
Maximum weight, kg
1,05
Environmental protection
IP65

Vibration Analyzer + Data Collector DC-23 User manual
8
3. Description
3.1. Front panel and controls
To operate the unit use the keyboard located on the front panel. The functions of the buttons are
indicated by symbols and lettering.
3.1.1. Description of the buttons
Use the «POWER» button to switc on/off the DC-23. To turn on the
unit, press and hold this button for 1-2 seconds, then release the button.
Follow the same procedure to switch off the unit. During switch-off a
dialog box will pop up on the display for switch-off confirmation.
Use the «LIGHT» button to toggle the backlight intensity. To increase
the backlight brightness to maximum continue pressing briefly on this
button. Once the backlight level has reached maximum, each further
pressing will dim the display.

Vibration Analyzer + Data Collector DC-23 User manual
9
Use the «HELP» button for access to context-sensitive help. Software
versions below 1.1 do not support processing press operations with this
button.
The ◄►▲▼ cursor buttons are used for navigation in menu
windows, moving the cursor etc. For detailed description of the buttons
and cursor operation, please, refer to the respective sections of this
manual.
The «ENTER» button is used to confirm the selected operation set in
the input field or to proceed to the next operation. For detailed
description of the "ENTER" button please refer to the respective
sections of this manual.
The «CANCEL» button is used to cancel the current operation and
returning to the previous menu.
The alphanumeric buttons are used for entering the respective characters. At certain steps these
buttons are used as function keys. Button function prompt is displayed in the prompt bar.
3.2. Connection sockets
All sockets for plugging the sensors, headphoes and PC to the analyzer are located under the top
cover panel of the unit (see Fig. 4.2.1).
Figure 4.2.1. Connection sockets.

Vibration Analyzer + Data Collector DC-23 User manual
10
This socket is used for connecting the FD-2 tacho probe for
rotational speed and phase measurement.
A and B sockets are used for connecting IEPE type vibration
sensors.
This socket is used for headphones connection.
The power adapter and PC connection socket is located in the bottom cover panel of the unit
3.3. Switching on the DC-23
To switch the unit on, press the "POWER" button on the front panel. The start up window will
be displayed. The start up process may take about 1 minute. After the startup the main menu will
be displayed.

Vibration Analyzer + Data Collector DC-23 User manual
11
3.4. Switching off the DC-23
To power off the DC-23, press the "POWER" button, hold it for a few seconds and release. Use
the ▲and ▼ cursor buttons, in the pop up window, select "Yes" to switch off or "No" to
continue operation and press "ENTER".
You can also use the "CANCEL" button to continue operation of the DC-23.
3.5. Emergency shutdown
In the unlikely event thet the DC-23 will hang up with no response to keyboard, the DC-23 can
be shut down in the emergency way. To shut down the unit, press and hold the "POWER" button
for 15-20 seconds.

Vibration Analyzer + Data Collector DC-23 User manual
12
4. Operation
4.1. General directions and safety precautions
Before starting to operate the unit, please read carefully this user manual, all relevant safety rules
applicable to the monitored equipment and industrial safety procedures.
4.2. Transducers
The DC-23 kit includes two IEPE (ICP) type vibration transducers (accelerometers) and FD-2
tacho probe transducer. The transducers are connected to the corresponding connectors on the
top panel of the DC-23
Note: the connectors keys are different for the accelerometer and tacho connectors.
4.3. Connection to the PC
The DC-23 uses the Ethernet port to connect to the PC. The connector is located on the bottom
panel of the DC-23. If your PC does not possess free Ethernet port, you can use the Ethernet to
USB adapter from the DC-23 kit
The USB port on the top panel of the DC-23 is used to connect the external devices like switch
box, memory stick, ets. But is not interned for PC connection,
4.4. User interface
User interface design is based on windows hierarchy. The main menu window constitutes the top
tier of this hierarchy and contains icons for selecting the required operations and proceeding to
the related interface window.

Vibration Analyzer + Data Collector DC-23 User manual
13
Here you can use the cursor buttons to select an icon and enter the next level of the menu or
execute the command.
The main menu window consists of the following components:
"Routes" - use this icon to select the route map for measurements, and proceed to the data
collector mode of the DC-23 operation;
"Analyzer" - use this icon to select the Analyzer mode of the DC-23 operation. It allows
instant configuration of measurements;
"Data exchange" - use this icon to connect to a PC for uploading/downloading route maps
and the measurement results;
"Settup" - use this icon to setup the DC-23 modes, sensors, date and time parameters,
etc.;
"About" - use this icon to access information about the DC-23, version number, etc.
"Application" - use this icon to access the applications menu –balancing, run-in\coast-
down, etc,
All interface window elements include:
oa window header located in the top part of the window and containing the following
information:
Topic description for current user location in the interface window hierarchy;
Sensors state
Current date and time;
Battery charge level.
The shortcut help bar (prompt bar) is located in the bottom part of the window.
For navigation in the main menu window use the ◄►▼▲.cursor control keys. To confirm the
choice, press the "ENTER" button.
To leave the menu to the upper hierarchy level use the cancel button.
.

Vibration Analyzer + Data Collector DC-23 User manual
14
4.5. Getting started
4.5.1. The DC-23 setup
To use the DC-23 Vibration Analyzer an data collector you should set up the instrument first. To
do this use the Setup menu of the DC-23
Your will see the following options
Here you can setup the DC-23

Vibration Analyzer + Data Collector DC-23 User manual
15
4.5.1.1. Inputs setup
Input configuration includes description of what is connected to the input connector of the DC-
23 as a sensor.
Select the Inputs menu from the setup menu and press Enter button.
Here you will see a list of configured inputs (you can select them by cursor keys) and you can
use the following buttons on the DC-23 to:
1Set the selected input for channel A
2Set the selected input for channel B
3Setup a new input
4Edit the selected input
5Delete the selected input
Note –the DefaultA and DefaultB inputs can not be edited or deleted. These are the “system
files” required for the DC-23 operation while no user inputs have been configured.
Before conducting any measurements you have to setup your inputs and enter the parameters of
the sensors you are going to use.
To do this use the “3” – create button on the keyboard and enter the password

Vibration Analyzer + Data Collector DC-23 User manual
16
By default the “11111” password is used to change the inputs of the DC-23
The following and the following dialog is used to configure inputs
Here:
Name Enter the name of the input. To do this select the Name field and press Enter
button –you will be in the editing mode. You can enter the name using
alphanumeric keypad as on the old phones –press a button several times to
enter the desired letter or number. Use right and left cursor keys to move the
cursor, down cursor key –as backspace. After you entered the name, press
Enter to confirm it.
Sensitivity Enter the sensitivity of the sensor from its calibration certificate and press
Enter to confirm it.
Input units Can be only milliVolts
Output units Use left and right cursor keys to select the magnitude and units that measures
the sensor. For accelerometer it should be Gs, for linear input –Volts, for
proximity probe –um, for current clamps Amperes, etc.

Vibration Analyzer + Data Collector DC-23 User manual
17
IEPE Select if the DC-23 should power the sensor (IEPE or ICP). Select by left and
right cursor keys YES to power sensor and NO not to power it.
Coupling Select AC or AC coupling of the input. Note with the ICP power ON you can
use only AC coupling.
After you entered all parameters use the “Cancel” button to exit configuration. A dialog box will
be displayed that will allow you to confirm changes to inputs or discard them.
For example use the following configuration for the IEPE accelerometer:
The actual sensitivity of the accelerometer # 3350 is entered.
Here is an example of the linear input configuration with DC coupling^
The sensitivity is 1000 mV/V.

Vibration Analyzer + Data Collector DC-23 User manual
18
Once you have configured all the required inputs you can select what sensors are connected to
the DC-23. To do this selec1 the input and use button “1” to select it for channel A and button
“2” to assign it to channel B.
The assigned inputs will be highlighted with the color (yellow or green).
4.5.1.2. Test measurements setup
In the data collector mode of the DC-23 operation, you can conduct the test measurements before
collecting data in a Route. These measurements are used to ensure the proper installation of the
accelerometers or other sensors. To configure the test measurements use the corresponding icon
in the Setup menu
The following dialog will be displayed:

Vibration Analyzer + Data Collector DC-23 User manual
19
Use up and down cursor keys to select parameters and left –right cursor keys to select the value.
You can setup one autospectrum and one envelope spectrum for each channel plus display or not
the rotation speed from the tacho.
Here
Fmax Full scale frequency for the spectra;
Resolution Number of lines in the spectra;
Filter Center frequency of the filter in the envelope detector, it can be 1/3 or 1/1
octave width;
Detector type RMS, Peak or Peak factor for the overall level.
Once the configuration is done –press the “Cancel” button to save or discard changes after
confirmation.
4.5.1.3. Date and Time setup
All the measurements in the DC-23 is stamped with date and time. The date and time of
measurements can be used for trending vibration data in the software, so it is important that you
keep correct time in the DC-23 before collecting data
To setup date and time use the corresponding icon from the Setup menu

Vibration Analyzer + Data Collector DC-23 User manual
20
Use up\down cursor keys to select the field and left\right cursor keys of alphanumeric keys to
enter the values.
Once the configuration is done –press the “Cancel” button to save or discard changes after
confirmation.
4.5.1.4. Settings
In the Settings section of the DC-23 Setup you can adapt DC-23 for your requirements:
Use up and down cursor keys to select the line and right and left cursor keys to select the option
value. Here:
Automatic shutdown select off so that the instrument will not shut down automatically when
not used or select the number of minutes after which in idle mode the
instrument will switch off.
Sort routes thw way to sort route maps in the list