Manual
System Configuration and Setup 4-71
Calculate Master Offsets
Calculate Master Offsets identifies and records a safe Z height for Dispensing Head travel, the XYZ
locations of the Purge and Scale Stations, needle, and substrate height. It also calibrates the Camera
crosshair to known locations.
" NOTE Calculate Master Offsets is only available on Century and M-600 Series
Dispensing Systems equipped with a Needle Sensor. It is not available on
M-2000 or X-1000 Series Dispensing Systems.
To perform a Calculate Master Offsets Procedure:
1. Clear the work area to make sure it is free of any obstacles so the Dispensing Head does not
collide with anything when it moves.
2. Click on
Next.
3. Check to make sure the Height Sensor Probe tip is lower than the needle tip as shown in the
on-screen prompt.
!If it is not, rotate the Height Sensor Micrometer until the probe tip is lower. Refer to the
manual for your specific dispensing system for additional information.
!If no Height Sensor is present, skip to the next step.
4. If necessary, use a tissue to clean any dripping fluid from the needle tip.
5. Click on
Next.
6. Activate the Z-axis Position Controls and raise the Dispensing Head to a Safe Z-axis height to
ensure the Dispensing Head will not encounter any obstacles while traveling around the
dispensing area.
7. Click on
Teach to record the height.
TIP You can always go back to the previous step by clicking on Prev.
8. Answer "Yes" to the question, "Would you like to reteach the beam locations?"
!This means that you will reteach the needle locations in the XYZ planes using the Needle
Sensor. Choosing "No" means that the previously recorded values are used and this step
is skipped.
9. Using the Position Controls, move the needle tip very slowly into the entrance of the Needle
Y Sensor slot until the green LED light on the sensor goes ON.
!If the light does not come on, lower the needle further into the slot. Then move the needle
tip around the corner in the Needle Sensor slot and slowly continue moving it until the
green light comes ON again.
!Follow the on-screen prompts for accurate calibration.
10. Click
Teach when done.