Technical Support Manual – 05/2015 Rel. 0
Page 9
5. MACHINE CALIBRATION
The machine must be calibrated in order to run. The machine calibration procedure saves the mechanical and electrical parameters
of every machine in an internal permanent memory (EEPROM). This way, the machine will provide better balancing results.
5.1 When to carry out machine calibration
Table T5.1 lists all the cases in which the machine must be calibrated. The machine must be calibrated each time the conditions
described below occur.
Table T5.1: Conditions that require machine calibration
Condition
Status
Who must perform it
When the machine is manufactured
Mandatory
Cormach srl
When the machine is installed at the site of the end customer
Mandatory
SERVICE technical personnel
When the CPU-C1 electronic control unit is updated or replaced
Mandatory
SERVICE technical personnel
When a mechanical part relative to the pick-up signals is replaced (pick-up,
springs, shaft unit)
Mandatory
SERVICE technical personnel
When the compression spring adjustment is altered
Mandatory
SERVICE technical personnel
When the ENCODER disc is replaced
Mandatory
SERVICE technical personnel
When the machine does not provide correct balancing measurements
Recommended End user and/or SERVICE
Technical Support
When you have relevant and constant room temperature and humidity
variations (e.g. seasonal changes)
Recommended End user and/or SERVICE
Technical Support
A non-calibrated machine provides balancing results equal to 0 grams (0.0 ounce).
5.2 How to calibrate the machine for CAR/SUV wheel type
•
Diameter: 15”.
•
Width: 6”.
•
Distance: as close as possible to 100 mm.
It is also possible to use a wheel with dimensions similar to those indicated, provided that the difference is not excessive. Aluminium
wheels cannot be used to calibrate the machine.
To calibrate the machine, proceed as follows:
1.
Switch the machine on;
2.
Press [F+P3]
. The display will show
SER SER
, which indicates the activation of the SERVICE mode;
3.
Press [P3]
. The display shows
CAL CAR
(machine calibration for auto-vehicles and off-road vehicles);
4.
Press [P3]
. The display will show
CAL 1
;
5.
Place the wheel on the shaft and block it. Enter the wheel dimensions with keys [P1]
, [P2]
, [P3]
to
select the dimensions to be modified and keys [P4]
, [P5]
to change the values. If the dimensions of the
wheel have been introduced before entering the calibration procedure, this step can be skipped;
6.
Manually run a launch by acting on the locking ring with knobs;
7.
Once the launch is completed, manually rotate the wheel until value 50 is seen on the left display. Apply the 50 g weight at
the 12 o'clock position on the internal side of the wheel;
8.
Manually run a launch by acting on the locking ring with knobs;
9.
Remove the 50 g weight applied on the internal side;
Summary of Contents for MEC 1
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