MK Products CobraTig 150 XM - Manual (Page 26)

CobraTig 150 Owner's Manual P/N 091-0417 - Page 26
This screen will allow the operator to calibrate any orbital weldhead,
at any speed value, between 1.0 and 10.0 rpm. Using the HIGH/LOW
button, select the respective speed value and use the ADJUST UP and
ADJUST DOWN buttons to select the rpm value required.
The HIGH and LOW values can never be equal. A minimum of 1.0 rpm
will separate the two values. If the LOW value is increased, the HIGH
will increase, with the 1.0 rpm difference between them. Similarly, if the
HIGH is decreased, the LOW will decrease with the 1.0 rpm difference.
Feedback of the weldhead during calibration is seen in the bar graph on
the left side of this screen.
High/Low
Toggles between the HIGH and LOW rpm speed values.
Print Report
Press this button, once calibration is complete, to view a printed report of
the calibration values.
The calibration values shown are an indication of the MOTOR/TACH
status of the weldhead. A typical printout is shown below:
MOTOR Calibration report
MOTOR gain: -4.6% Zero offset: 0.30 RPM
TACH gain: 1.9% Zero offset: 0.02 RPM
Should these MOTOR & TACH values return with number of 0.00% and
0.00 RPM, the calibration was invalid and should be re-run. Continu-
ous results of all zeros, is an indication that the weldhead is in need of
service.
Consult the weldhead owner’s manual for proper maintenance and cali-
bration service.
MOTOR Calibration report
MOTOR gain: 0.0% Zero offset: 0.00 RPM
TACH gain: 0.0% Zero offset: 0.00 RPM
NOTE: If all values for MOTOR or WELDER calibration are zeros, it
means that he calibration did not complete successfully and is not valid.
Start Calibration
Press this button to start the weldhead calibration procedure. The cali-
bration start at the values selected using the “ADJUST UP” and “AD-
JUST DOWN” buttons.
Current Start
Using the calibration kit and the multimeter, calibration of the output cur-
rent can be achieved in relatively short time. Using the 10 A CALIBRA-
TION and 80 A CALIBRATION buttons, output values at these points will
properly calibrate the current for almost all applications.
10A Calibration / 80A Calibration
These two keys are used in conjunction for calibrating the output cur-
rent. Use the information on the HELP screen to perform this calibration
procedure.