VOH WHEELTEST II User manual

WHEELTEST II
User’s manual
Translated from french

Mecatronic solution
EN_Wheeltest2_guide
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Created 24.02.2010
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User’s manual
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1General information .......................................................................................................................................3
1.1 Warranty....................................................................................................................................................3
1.2 Safety information .....................................................................................................................................4
1.3 Transportation...........................................................................................................................................4
1.4 Storage......................................................................................................................................................4
2Parts of the machine ......................................................................................................................................5
2.1 Principle of operation ................................................................................................................................5
3Use...................................................................................................................................................................6
3.1 Start-up......................................................................................................................................................6
3.2 Use............................................................................................................................................................6
3.2.1 Placing the component on the Wheeltest 2........................................................................................ 6
3.2.2 Placing the spindles:........................................................................................................................... 6
3.2.3 Changing wheels: ............................................................................................................................... 7
3.2.4 Drive adjustment................................................................................................................................. 7
4Resolution of common problems .................................................................................................................8
5Exclusion of responsibility/warranty............................................................................................................8
6Maintenance and care....................................................................................................................................8
7Technical data.................................................................................................................................................8
8Representation/distribution ..........................................................................................................................9

Mecatronic solution
EN_Wheeltest2_guide
_V1.1
Created 24.02.2010
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User’s manual
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1 General information
1.1 Warranty
VOH Ltd guarantees this product against faulty manufacture or material in normal conditions of use and service,
for one year from the commissioning at the client’s place of business. If at any time during the length of the
warranty, the product shall be deemed faulty or break down, VOH Ltd. shall repair or replace it (choice to be
made by VOH Ltd.).
If the product is defective, please call the customer service of VOH on [phone].
Said warranty shall not apply if VOH Ltd proves that the fault or failure arises from damages which occurred while
the product was in the possession of a buyer.
VOH Ltd.’s responsibility is limited to the repair or replacement of the product under the conditions listed
hereabove.
VOH LTD. SHALL NOT BE RESPONSIBLE FOR LOSS OR ANY DAMAGES WHATSOEVER, INCLUDING
CONSECUTIVE OR ACCESSORY DAMAGES, ARISING DIRECTLY OR INDIRECTLY FROM AN EXPLICIT OR
IMPLICIT VIOLATION OF THE WARRANTY, OR FROM ANY OTHER FAULT OF THIS PRODUCT. THIS
WARRANTY IS THE ONLY EXPLICIT WARRANTY THAT VOH GRANTS ON THIS PRODUCT.
This warranty only covers the initial buyer and is not transferable.
Should you have questions concerning this warranty, please write to VOH Ltd.:
VOH LTD
La Praye 5a
CH-2608 Courtelary
Phone : [phone]
Fax : [phone]
E-Mail : [email protected]
Internet : http://www.voh.ch

Mecatronic solution
EN_Wheeltest2_guide
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Created 24.02.2010
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User’s manual
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1.2 Safety information
Warning
Do not use the Wheeltest 2 if it is damaged. Before using the Wheeltest 2, inspect its casing and its
electrical connections.
The Wheeltest 2 must be used in the way specified by the manufacturer.
Do not use the Wheeltest 2 plus near dust.
The Wheeltest 2 must only be used by people who have been trained to do so.
Beware!!!
Please read the information included in this manual before using this apparatus. Incorrect use may
damage the system or cause measurement errors.
Before connecting the machine for the first time, verify that the supply voltage of the power grid
corresponds to that required by the machine.
In case of prolonged non-use, disconnect the electrical supply cable.
Do not dismantle the machine. Only the manufacturer is entitled to replace or repair a faulty component.
Use this machine at a temperature between 10°C and 40°C (140 °F)
Never place objects other than watch wheels in the device.
1.3 Transportation
If the apparatus is moved, take care not to cause any shocks that could damage its mechanisms. In case of
transport over a long distance, it is preferable to use anti-shock packaging.
1.4 Storage
The Wheeltest 2 must be stored in a dry and dust-free place. The storage temperature must be between 10°C
and 40°C. It is advisable to wrap up the machine to protect it from dust and humidity.

Mecatronic solution
EN_Wheeltest2_guide
_V1.1
Created 24.02.2010
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User’s manual
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2 Parts of the machine
The Wheeltest 2 comprises a series of control knobs for the motor, two spindles to hold the wheel and a bow to
drive it.
Figure 1: General view of the Wheeltest 2
Connections are on the left side: 5V power connection and main switch.
2.1 Principle of operation
A wheel is placed on the Wheeltest 2 and set to rotate by the driving bow that is itself driven by the motor.
Motor
Control panel
Spindles
Spindle blocks
Hole for light to
pass
Wheel driving bow
5V connection + switch

Mecatronic solution
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User’s manual
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3 Use
3.1 Start-up
The machine is started by the slide switch next to the power connection. When it is turned on, the motor will not
turn, but the last parameters used (speed and direction of rotation) will be restored.
3.2 Use
3.2.1Placing the component on the Wheeltest 2
The component to be measured must be placed in the Wheeltest 2 spindles and be slightly constrained between
these two spindles. The following spindles are available:
-Threaded spindle for Azurea gauges
-Spindles for holding between points
-Spindles with jewels to hold wheels with axles
3.2.2Placing the spindles:
-The chosen spindles must be placed through the two bores in the left and right supports, after having
loosened the locking screws.
-The axial position is determined by the wheel to be measured, in order to best transmit the
movement to the wheel by means of the driving finger.
-When the axial position of the spindles is correct, the locking screw in the right holder (motor side)
must block the spindle.
Figure 2: correct positioning of the wheel

Mecatronic solution
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-To ensure play-free movement, the wheel must be slightly constrained between the two spindles.
This constraint is guaranteed by a spring acting on the left spindle. While holding the left spindle in
place, the blocking device for the left spindle must be separated, along the axis of the spindle, and its
screw tightened in this position.
Figure 3: placing the wheel under axial constraint
3.2.3Changing wheels:
-Move the left blocking mechanism along the spindle axis (without loosening the screw)
-Remove component
-Place a new component
-Gently release the spindle block
3.2.4 Drive adjustment
Rotation speed is adjusted by the « + » and « - » buttons on the control panel; a lighted bar comprising 8 LEDs
allows the speed chosen to be visualised. Rotation is launched by pressing on the « on/ off » for 2 seconds; the
LED will turn on at the top of the button. Brief pressure on the « on/ off » button allows step-by-step rotations.
The wheel rotation direction is alternated by pressing the button at the far left.
Figure 4: control panel
Return force
Separation of the
blocking mechanism at
rest
Change of
direction

Mecatronic solution
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Created 24.02.2010
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4 Resolution of common problems
Type of error
Cause
Resolution
No LED turns on
when powered up
Speed was set at minimum during
last use
Increase speed to confirm that the
Wheeltest 2 is being supplied with
power
The wheel is not
driven
The driving belt is badly placed or
damaged
Reposition or replace the belt
The wheel, held on
an Azurea gauge,
has an abnormal
beat
The Azurea gauge is coming
unscrewed from the spindle
Rescrew the gauge, change the
direction of rotation.
5 Exclusion of responsibility/warranty
Damages caused by use, transportation or storage that do not comply with those described in this manual are
not taken care of by the manufacturer. Modifications to the machine and opening the casing are forbidden and
entail an exclusion of responsibility. The right to a warranty expires when these are demonstrated or if the faults
noted cannot be original. Consumables (belts) are not subject to warranty.
6 Maintenance and care
No special care is necessary for the Wheeltest 2, if it is used in a laboratory, except classic cleaning with a dry
cloth. The belt is a consumable to be replaced when the user deems necessary.
7 Technical data
Parameter
Value
Supply voltage
5 DC
Power
850 mW
Dimensions
Depth : 80 mm
Width : 70 mm
Height : 18 mm

Mecatronic solution
EN_Wheeltest2_guide
_V1.1
Created 24.02.2010
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User’s manual
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8 Representation/distribution