User guide

Startup/Shutdown 5-3
Machine Offsets Procedures
Procedures available in FmNT for calibration of machine offsets are: Calculate Master Offsets (CMO);
Valve Offsets (VO); Scripted Valve Offsets (SVO); and Camera-Assisted Scripted Valve Offsets
(CASVO). Machine offsets routines allow you to:
• Determine safe needle Z height
• Teach the location of the Service Stations (Purge and Weigh Stations)
• Set needle-to-Height Sensor probe Z offset
• Calibrate needle-to-camera XY offset
• Calculate of Height Sensor probe-to-camera XY offset
The specific procedure you select depends on your system configuration. See the Fluidmove for Windows
NT User Guide for assistance.
Calculate Master Offsets
Calculate Master Offsets is a prompted routine that identifies and records safe Z needle height for
Dispensing Head travel, the XYZ locations of the purge and weigh stations, and needle-to-height sensor
probe Z height. CMO also calibrates the camera crosshair to known locations or fiducials. Performed
when the dispensing system is initially installed and configured, the values determined through CMO are
recorded in FmNT. The CMO routine should be performed before you begin a production run, and if any
of the following events occur:
• Initial system setup (reinstallation)
• Reinitialization or reinstallation of system software
• Software update
• Valve change (not syringe)
• Needle change (see also note below)
• Camera change or location adjustment
• Service station (purge and weigh stations) change or location adjustment
• Needle Sensor change or location adjustment
• Height Sensor change or location adjustment
TIP If you change the needle during a production run, you need to perform only the Shorter
Find Needle XYZ procedure to continue dispensing.
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NOTE You cannot mix the use of Calculate Master Offsets and any of the Valve Offsets
routines described below (Valve Offsets, Scripted Valve Offsets, or Camera-Assisted
Scripted Valve Offsets
).
To perform Calculate Master Offsets:
1. From the FmNT Main Window, click on
Configuration.
2. Choose
Machine Offsets.