KOHTECT AVV-711 Instruction Manual

2013
KOHTECT AVV-711
LASER SHAFT ALIGNMENT SYSTEM
OPERATING INSTRUCTIONS MANUAL

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CONTENT
1.0 General............................................................................................................................................. 7
1.1 Laser Safety Precautions............................................................................................................... 7
2.0 Technical Description........................................................................................................................ 7
2.1. Designation .................................................................................................................................. 7
2.1.1 CE compliance............................................................................................................................ 8
2.2. Specification and Features............................................................................................................ 8
2.3. System Package........................................................................................................................... 8
2.6 Misalignment Parameters ............................................................................................................ 10
3.0 Machine Alignment.......................................................................................................................... 12
3.1 Input Measurement Data.............................................................................................................. 12
3.2 Set-up the Device........................................................................................................................ 13
3.3 Connecting the Measuring Units .................................................................................................. 13
3.4 Input of Dimensions..................................................................................................................... 13
3.5 Rough Alignment Procedure........................................................................................................ 14
4. Getting Started.................................................................................................................................. 16
4.1 Common control keys consideration:............................................................................................ 16
4.2 To start AVV-711:........................................................................................................................ 16
5. Horizontal Machine Alignment........................................................................................................... 17
5.1 To setup machine dimensions...................................................................................................... 18
5.2 To change program parameters................................................................................................... 19
5.3 To collect data............................................................................................................................. 20
5.3.1 To setup readings data offset (extend Y values range)........................................................... 24
5.4 To aligning................................................................................................................................... 27
Continue work after the transducers position changed.................................................................... 29
5.4.1 To enter misalignment tolerances.......................................................................................... 30
5.4.2 To enter thermal growth......................................................................................................... 32
5.4.3 To shim simulation ................................................................................................................ 33

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6. Soft foot program .............................................................................................................................. 34
7. Vertical Machine Alignment............................................................................................................... 35
7.1 To setup machine dimensions...................................................................................................... 36
7.2 To change program parameters................................................................................................... 37
7.3 To collect data............................................................................................................................. 38
7.3.1 To setup readings offset (extend Yvalues range).................................................................. 42
7.4 To aligning................................................................................................................................... 42
7.4.1 To view bolts corrections....................................................................................................... 45
Continue work after the transducers position changed.................................................................... 45
7.4.2 To enter misalignment tolerances.......................................................................................... 46
8. Cardan shafts alignment.................................................................................................................... 47
8.1 To setup machine dimensions and measure unit.......................................................................... 48
8.2 To collect data and align.............................................................................................................. 49
9. Dealing with file dialogs..................................................................................................................... 50
General file dialog tasks .................................................................................................................... 50
10. Setup program ................................................................................................................................ 52
10.1 To setup date and time.............................................................................................................. 53
10.2 To setup power off time.............................................................................................................. 54
10.3 To setup/view licenses for programs.......................................................................................... 55
10.4 To configure transducers interface (Serial/Bluetooth) ................................................................. 56
10.5 To select user language............................................................................................................. 57
10.6 To select USB mode.................................................................................................................. 58
11. My documents program................................................................................................................... 59
11.1 To explore / organize files and folders........................................................................................ 59
11.2 To save report to PDF file.......................................................................................................... 61
Extended alignment programs............................................................................................................... 63
12. Machine train alignment.................................................................................................................. 63
Short explanation............................................................................................................................... 63
Perform machine train alignment ....................................................................................................... 63

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12.1 Main screen of the program(setup train and collect data)............................................................ 63
12.2 To view misalignment result....................................................................................................... 66
13. Bores centerline program................................................................................................................ 68
Short explanation............................................................................................................................... 68
Perform bores centerline alignment.................................................................................................... 68
13.1 Main screen of the program (configure planes and change parameters)..................................... 68
Screen overview............................................................................................................................ 69
Workflow of the configuration......................................................................................................... 70
13.2 Taking measurements ............................................................................................................... 70
Connection time............................................................................................................................. 71
Screen overview............................................................................................................................ 72
Coarse adjustment of the laser beam............................................................................................. 73
Take, review and replace measure................................................................................................. 73
13.3 View and save result.................................................................................................................. 74
13.4 Live move.................................................................................................................................. 75
14. Straightness program...................................................................................................................... 76
Short explanation............................................................................................................................... 76
Perform straightness alignment ......................................................................................................... 76
14.1 Main screen of the program (configure positions and change parameters) ................................. 76
Screen overview............................................................................................................................ 77
Splice introduction.......................................................................................................................... 78
Workflow of the configuration......................................................................................................... 78
14.2 Taking measurements ............................................................................................................... 79
Connection time............................................................................................................................. 79
Screen overview............................................................................................................................ 80
Coarse adjustment of the laser beam............................................................................................. 81
Take, review and replace measure................................................................................................. 81
14.3 View and save result.................................................................................................................. 82
14.4 Splice usage tutorial................................................................................................................... 83

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14.5 Live move.................................................................................................................................. 85
15. Flatness program ............................................................................................................................ 86
Short explanation............................................................................................................................... 86
15.1 Main screen of the program ....................................................................................................... 86
15.2 Change parameters................................................................................................................... 88
auto router ..................................................................................................................................... 89
15.3 Create and edit grid................................................................................................................... 90
Create rectangular grid................................................................................................................... 90
Create circular grid......................................................................................................................... 91
Edit grid......................................................................................................................................... 92
15.4 Taking measurements ............................................................................................................... 95
15.5 View and save result.................................................................................................................. 98
reference plane modes................................................................................................................... 99
Define reference points.................................................................................................................. 99
Result value modes...................................................................................................................... 100
Enter tolerance............................................................................................................................. 100
View statistics.............................................................................................................................. 101
16. Plumbline program........................................................................................................................ 102
Short explanation............................................................................................................................. 102
Perform plumbline measurement..................................................................................................... 102
16.1 Main screen of the program ..................................................................................................... 103
Workflow of the configuration....................................................................................................... 104
Screen overview.......................................................................................................................... 104
16.2 Taking measurements ............................................................................................................. 105
Connection time........................................................................................................................... 105
Screen overview.......................................................................................................................... 106
16.3 View and save result................................................................................................................ 107
17. Spindle program............................................................................................................................ 109
17.1 Main screen of the program ..................................................................................................... 109

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Basic workflow............................................................................................................................. 109
17.2 Taking measurements ............................................................................................................. 110
17.3 View and save result................................................................................................................ 110
18. Squareness program..................................................................................................................... 111
18.1 Main screen of the program ..................................................................................................... 111
Basic workflow............................................................................................................................. 112
18.2 Taking measurements ............................................................................................................. 112
18.3 View and save result................................................................................................................ 113
Standards Tolerance of Shaft Misalignment ........................................................................................ 114
Delivery Set........................................................................................................................................ 115

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1.0 GENERAL
1.1 LASER SAFETY PRECAUTIONS
The KOHTECT AVV-711 alignment system is the class II laser device at typical wavelength of 670nm,
delivered output power of less than 1 mW and maximum radiant energy per pulse of 0.1 mJ. The Class II
laser comply with requirement outlined by USA’s FDA as well as international ANSI, BS 4803 and IEC
825 standard. Be sure to follow the following safety precautions to avoid personal injuries and damage to
the system
Do not look directly into laser the beam at any time!
Do not direct laser beam on to the people’s eyes!
ATTENTION!
Do not try open / dismantle measuring units and the display unit – this can damage the system, and your
after-sales service warranty will come void.
Warning!
Be sure the machines to be measured, cannot be started unintentionally as this can cause injuries. For
this purpose, before the mounting of equipment, either block the power switch in the “Off” position or
remove the safety fuses. These precautionary rules must be followed until the measuring system is
dismantled from the measured machine.
INJURY RESPONSIBILITY DISCLAIMER
Neither the NPP KOHTECT enterprise nor our authorized dealers are liable for the damages caused to
machinery or equipment by use of the AVV-711 system. We carefully check text of this manual to
eliminate errors, nonetheless there may be mistakes or inaccuracy involved. We will be grateful for your
reporting to us about any error, and we will be able to correct them in the subsequent editions of the
manual.
2.0 TECHNICAL DESCRIPTION
2.1. DESIGNATION
AVV-711 alignment system (further as System) is designed for:
checking of shaft alignment of mechanisms;
The checking of shaft alignment means adjustment of the relative position of two coupled machines (e.g.
motor and pump) so that the centre line of the axis will be concentric when the machines are running
during normal working conditions.

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2.1.1 CE COMPLIANCE
AVV-711 alignment system conform to 2006/95/EC, EN 61010-1:2001, EN 60825-1:2007, 2004/108/EC,
EN 61326-1:2006, EN 61326-2-2:2006, EN55011:2009+A1 CE requirements
2.2. SPECIFICATION AND FEATURES
2.2.1. Separation distance between measuring transducer units, up to 10m
2.2.2. Display control operating temperature range, -10..+55 degree C
2.2.3. Measurement accuracy, 1%+0.01
2.2.4. Laser type: Visible red 635-670 nm, <1 mW
2.2.5. Detector type: Positional-sensitive photodiodes, 10х10 mm
2.2.6. Display resolution, 0.01 or 0.001 mm, (1 or 0.1 mil )
2.2.7. Measuring resolution, 0.001mm
2.2.8. Electronic inclinometer resolution, 0.1 degree
2.2.9. Power supply: Rechargeable NiMH battery
2.2.10. Gross weight, 7.5 kg
2.2.11. Built-in application programs and options:
horizontal shaft alignment at any shaft position, from 60°, up to 360º, up to 36 readings can be
measured; auto sweep mode can be used;
vertical(flange machine) shaft alignment;
editable misalignment tolerances;
setup options;
soft foot;
thermal growth;
selection of shimming simulator to calculate for expected misalignment;
2.3. SYSTEM PACKAGE.
The System includes (Fig. 1):
AVV701 display control unit
two measuring transducer units
universal chain brackets for mounting of the
measuring units

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measuring tape, mm/inch
220 Volts AC charger
connecting cables;
CD-ROM PC software
USB PC communication cable
Operating instructions manual in CD
Carrying case with form-inserted
* Top positions to be faced up while setting up both the transducer.
Datum lines for measuring of dimension input

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2.6 MISALIGNMENT PARAMETERS
Misalignment of any rotating machine is expressed in parallel (Offset) and angular (Gap) of the shafts.
Most frequently in practice, both of them are present simultaneously. Different kinds of misalignment of
axes are shown in Fig. 2.
The parallel (Offset) and angular (Gap) misalignment of axes is determined in two mutually perpendicular
planes. For the purpose of elimination of the parallel and angular misalignment of axes, in each of the
planes a correction of position of the movable machine (M) will be done.
For the horizontal mounted machine – the movable machine (M) position is adjusted in the horizontal and
vertical planes.
For the vertical mounted machine, operator determines arrangement of the correction planes, basing on
considerations of the convenience and technological effectiveness of moving of the movable (M)
machine.
Stationary machine (S) - in the process of eliminating of the axes misalignment the position of this
machine stay static, i.e. it does not move.
Movable machine (M) – the machine, which position is adjusted for eliminating of the parallel and angular
misalignment of axes.
The measurement system calculates the values of the angular and parallel misalignment of axes in the
plane of the coupling (in two mutually perpendicular planes), and the adjustment values for the machine
feet on the movable (M) machine, that is necessary for elimination of this misalignment of axes. Fig. 3
shows misalignment of axes and the values for its correction just for vertical plane.
Parallel misalignment of axes – Offset (displacement)
Angular misalignment of axes – Gap
Parallel and angular misalignment of axes – (Offset + Gap)
Fig 2

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Fig 3.

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3.0 MACHINE ALIGNMENT
·Mount the Measuring transducer units on the shafts of the (S) and (M) machines
·Select program according to the application of machine to be measured
·Input the distances between the (S) and (M) units, the coupling and the movable machine
feet
·Press to record readings from the measuring units at three different positions of the
shafts
·Adjust the machine feet position of the movable machine in accordance with correction
results of the calculated value on control screen
Attention!
While making the measurement, it is necessary to observe and understand the orientation on rotation
direction of the shafts with the (S) and (M) measuring transducer units with regard to the relative position
of the (S) and (M) machines as in Fig.4.
Fig 4.
Fig. 4 shows the view of (S) machine from the (M) end view, at the 12:00 o’clock position. The measuring
transducer units have marking (S) and (M) on the top of each unit, should be mounted with brackets onto
the shafts of the (S) stationary and (M) movable machine respectively.
3.1 INPUT MEASUREMENT DATA
AVV-711 system function is based on the measurement of the laser beam movement on the detector
receiver’s window during the turning of shafts with the measuring units mounted.
To enable the System to carry out the shaft alignment calculation, it is necessary to record the
measurement data in minimum three positions of the shafts rotation. turning the shafts in the range of
180º is sufficient.

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If design features of the machines do not make it possible to carry out rotation of the shafts with the
measuring units mounted up to 180º, the instrument also provides smaller shaft rotation angle
measurement mode that allows possibility to enter the measuring data at positions when the shafts
rotation angle constitutes at least 60º.
3.2 SET-UP THE DEVICE
Before the beginning of the work, check the battery voltage and charge it if necessary.
Battery status is indicated by small colored image on the bottom of the screen of the device in the
main menu. Exact battery voltage can be viewed in the Setup option
Check and clean if necessary the surface of detectors and aperture of laser.
Use soft tampons, moistened with alcohol, for the cleaning. Solvents must not be used!
Check and setup if necessary, date and time of the system clock.
3.3 CONNECTING THE MEASURING UNITS
There are serial connector in the Control Display unit and each Measuring transducer units. Connection
to the Control Display unit is in series (Fig. 5).
Connecting the measuring units in series
Fig. 5
3.4 INPUT OF DIMENSIONS
To enable the AVV-711 to carry out accurate calculations it is necessary to input the distances between
the measuring transducer units, the coupling and the machine feet. Fig. 6 shows the dimensions input for
the horizontal plane alignment. Fig. 7 shows the dimensions input for the alignment of vertical flange
mount machine.

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Fig 6.
S-M distance between measuring transducer units.
S-C distance between S and center of coupling.
S-F1 distance between stationary detector (S) and the feet pair 1 (F1).
S-F2 distance between S and F2 (must be longer than S-F1). If the machine has three pairs
of feet, you can change this distance after finished measurement, and then repeat the
calculation and get a new
adjustment value for this pair.
Fig 7.
S-M distance between measuring transducer units.
S-C distance between S and center of coupling.
S-F1 distance between stationary detector (S) and the plane of alignment (F1).
3.5 ROUGH ALIGNMENT PROCEDURE
Rough alignment should be applied only when the alignment is extremely poor, the laser beams may
travel outside the detectors during rotation of the shafts with the Measuring units mounted. If this happen
it is necessary to do a rough alignment first.
Rough alignment procedure (variant 1), (Fig. 8):
Turn shafts with measuring units to the 9 o’clock position. Aim the laser beams at the centre of the
closed detectors.
Turn shafts with measuring units to the 3 o’clock position.

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Check where the laser hits, then using the laser adjustment screws, adjust the beam half the travel in
direction to the centre of the target (Fig. 8).
Adjust the movable machine so that the laser beam hits the centers of both the targets, (S) and (M).
Follow the regular procedure to continue.
Fig 8.

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4. GETTING STARTED
4.1 COMMON CONTROL KEYS CONSIDERATION:
To close any currently active window, without saving, except main menu of the device, press button
(it serves as escape key).
The button in most cases causes applying(saving) changes (invoke selection) and exit (from edit box;
or from current window, except such windows as collect data, aligning, soft foot and so on where it not
applicable).
4.2 AUTO SAVE
All procedures are designed with auto save. For temporarily shut down your current work press until
program exits to main menu of the device. Data saved now device can be turned off.
4.3 TO START AVV-711:
·After the booting process completed main device menu appears on the device display
·From Main device menu: select appropriate menu option, then press.
If you see blinking low battery icon at the bottom of screen you should immediately save
unsaved data and start battery charging. This icon means device will be automatically shut downed soon.
System date
Main menu options, press to
drop down folder, press to
collapse all folders
Battery status
System time

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5. HORIZONTAL MACHINE ALIGNMENT
Mount the Measuring transducer marked with (S) on the shafts of the stationary machine and Measuring
transducer marked (M) on the moveable machine. Connect the cables as per section 3.3, between the
Measuring transducer units and Control Display unit, or configure Bluetooth interface.
Cautions in this screen Shortcuts in this screen
Soft foot errors should be measured and
corrected first, to eliminate unexpected
errors while aligning.
Do not forget to repeat misalignment
measure after correction complete, to
confirm results of you work
To collect new data
Tasks in this screen To continue aligning procedure
·Collect readings from transducers(collect
data) and start alignment
·Continue alignment
·Change program parameters
·Setup machine dimensions and
transducers distances
·Call soft foot program
To Setup machine dimensions and
transducers distances
To Change program parameters
To call soft foot program (set machine
dimensions and transducers distances first!)
Short description of the
current program
parameters

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5.1 TO SETUP MACHINE DIMENSIONS
To setup machine dimensions press
Cautions in this screen Shortcuts in this screen
For correct values S-C must be lower
than S-M and S-M must be not greater
than S-F1 and S-F1 must be lower than
S-F2
Navigate between length edit boxes up
Tasks in this screen Navigate between length edit boxes down
·Enter stationary side transducer to center
length
·Enter stationary side to movable side
transducer length
·Enter stationary side transducer to
machine front feet length
·Enter stationary side transducer to
machine rear feet length
To save and exit
Measure units
S to coupling center
S to M
S to front feet
S to rear feet

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5.2 TO CHANGE PROGRAM PARAMETERS
To change program parameters press
Cautions in this screen Shortcuts in this screen
Use biaxial live only where weak shafts
coupling present To select/reset use manual input
Tasks in this screen To select/reset use manual angle
·Select to use manual input or transducers
data
·Select to use manual angle or
inclinometers embedded in transducers
·Select default display resolution
to 2 or 3 decimals
·Select default measure unit metric mm or
uk inches(mils)
·Select to enable biaxial live aligning(use
both Y and X coordinates) or use single Y
coordinates only(default)
To select/reset use 2 decimals resolution
(when reset it is 3 decimals)
To choose between measure unit metric mm
or uk inches(mils)
To select/reset biaxial live aligning mode
To save and exit
Filter(averaging) setup
use to confirm
input

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5.3 TO COLLECT DATA
To collect data press
Cautions in this screen Shortcuts in this screen
Before starting new alignment task you
must enter dimensions and setup
program parameters
DO NOT change the positions of
measuring units at the time of interruption
of the work
The laser beams turned on now
To start from scratch(clear all readings).
Confirm dialog appears
Tasks in this screen To enter Ys value when manual input mode
selected
·Collect readings from transducers(up to
36)
·Choose between auto sweep and manual
modes
·Enter manual Ys, Ym values
(if manual input is selected)
·Enter manual angle
(if use manual angle is selected)
·Choose measure units(mm/mils)
·Navigate through collected readings
·Delete/add/replace readings
·Start from scratch(clear all readings)
option
·Set offset
(extend Y values range) option
·Save collected readings
To enter Ym value when manual input
mode selected
Enter manual angle when manual angle
mode selected
When edit value in edit box press twice
when cursor at first position to enter
negative sign(“-”)
To select measure units(mm / mils)
To setup offset
To save collected data to file, see Dealing
with file dialogs
To load previously saved data from file, see
Dealing with file dialogs