Standard Calibration - Bosch WBE 4140 Instandsetzungsanleitung

en �2 | WBE 4140 | Standard calibration
7.

Standard calibration

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We recommend carrying out the standard calibration
of WBE 4140 during commissioning, during the six-
monthly maintenance operations or in the presence
of imprecise measurement results, following the
sequence below:
1. Flange calibration
2. Calliper gauge/measurement arm calibration
3. Calibration with wheel and sample weight.
!
At the end of every calibration carry out a control
measurement.
7.1 Recalling of the calibration menu
1. From the "Settings and Service" menu select
Calibration and confirm by pressing <OK>.
2. Enter password: <r> <r> <o>.
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The standard calibration menu is displayed.
Calibration with wheel and sample weight.
Flange calibration
Back to main page.
Calliper gauge and measurement arm calibration
7.2 Calibration with wheel and sample
weight
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Keep to the indications displayed on the monitor.
1. Fix the wheel of a motor vehicle of average size
and in excellent conditions (e.g. 5.5" wide, 14"
diameter) on to the flange.
2. Select WBE 4140 Calibration and confirm by
pressing <OK>.
 Calibration is started.
3. Enter the data of the rim and confirm by pressing
<OK>.
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4. Press <START>.
 Measurement is started.
5. Enter any balancing weight between 40 g and 120°g
and confirm by pressing <OK>.
6. Apply the balancing weight of the value entered on
the internal side of the wheel.
7. Press <START>.
 Measurement is started.
8. Turn the wheel until the balancing weight is in 12
o'clock position.
9. Remove the balancing weight from the internal side
of the wheel and apply it on the external side (12
o'clock).
10. Press <START>.
 Measurement is started.
11. Turn the wheel until the weight is in 6 o'clock
position.
12. Press <OK>.
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Calibration is completed.
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The performed calibration is automatically and
permanently saved.
7.� Flange calibration
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Follow the instructions shown on the monitor.
1. Fit the flange (refer to Section 5).
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Do not clamp the wheel, do not use any clamping
tools.
2. Select flange calibration and confirm with <OK>.
 Calibration is started.
3. Close the wheel guard.
 Measurement commences.
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Flange calibration completed.
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Unbalance set to "0".
7.4 Calibration of electronic vernier cali-
per/gauge arm
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Follow the instructions shown on the monitor.
1. Select calibration of the slide calliper and of the
angular width gauge and confirm using <OK>.
 Calibration begins.
Robert Bosch GmbH