METTLER TOLEDO Service
Acculab V 600 is not accepting calibration.
Do you have a manual technical to Acculab V-600????
The manual for the VI/VIR-Series can be found by clicking on the link below and looking under the "Resources" tab.
Hope this helps with your calibration issue.
If you have anymore issues or questions, please do not hesitate to reach me or reply to this post.