COATS 1100 Series Balancer - Manual (Page 21)

Important: Always read and follow instructions. • 17
Calibration Program
Important: Be sure to use the correct calibration
weight amount: a 4-ounce calibration weight with the
ounce option or a 100-gram calibration weight with the
gram option activated. Be sure to deactivate the Round
Off option.
Machine Calibration
For machine calibration, proceed as follows:
1.
Mount a 14, 15, or 16-inch steel tire/wheel assem-
bly on the balancer. A balanced tire/wheel is required.
Note: Position wheel so that no weights are on either
flange at the top-dead-center location. Turn the machine
OFF then ON.
2. Press and hold Calibration key for three (3) seconds
to select Machine Calibration mode.
3. Press “D” key to enter the D (diameter) dimension.
Press the Up and/or Down arrow key to adjust numbers.
A valid data entry is either “14”, “15”, or “16”.
4. Press the Function key.
5. Lower the hood and press the START key to begin
the measurement cycle.
6. After the tire/wheel stops spinning, raise the hood.
7. Rotate wheel until the Outboard center bar blinks.
Attach calibration weight (either 4-ounce or 100 gram) to
the outboard flange at top-dead-center.
Figure 24 - Calibration Weight On Outboard Flange At Top-
Dead-Center
8. Lower the hood and press the START key to begin
the measurement cycle.
9. After the tire/wheel stops spinning, raise the hood.
10. Rotate wheel until the Inboard center bar blinks.
Move and attach the 100-gram calibration weight to the
inside flange at top-dead-center.
Important: It is critical that the inner weight be placed
accurately to achieve proper calibration. If the calibration
weight is not moved from the outside flange directly
across to the inside flange, an inner weight placement
error will occur and the calibration will be “failed”.
Figure 25 - Calibration Weight On Inboard Flange At Top-Dead-
Center
11. Lower the hood and press the START key to
begin the measurement cycle.
12. After the tire/wheel stops spinning, machine dis-
plays “100, END CAL”.. Machine Calibration is complete.
13. Press FUNCTION to exit.