K-Patents redesigned the original SAFE-DRIVE Process Refractometer PR-23-SD in 2014 to help operators to improve safety of the refractometer and wash nozzle insertion and removal operations.
Following the 2nd generation SAFE-DRIVE release, K-Patents recommends all original SAFE-DRIVE Refractometer users to upgrade as a preventative measure to enhance the product safety. The following product models:
• Retractable process refractometer PR-23-SD
• Isolation valve SDI-23
• Retractor tool SDR
• Prism wash nozzles with steam -SN and water -WP
ordered between December 5, 2006 and August 8, 2014 with serial numbers between 7079-12669 are of original design.
We also introduced new SAFE-DRIVE Pocket Guides and SAFE-DRIVE Best Practice Guide, recommended never to operate the SAFE-DRIVE Retractor alone, and offered training to ensure that the SAFE-DRIVE Process Refractometer sensor and wash nozzle are correctly inserted and retracted by following the manufacturer's instructions and to provide hands-on instruction on the use of the retractable refractometer sensor and wash nozzle.
Separate upgrade instructions can be downloaded at this link (PDF).
Generation 1 instructions
Generation 2 instructions
SAFE-DRIVE™ Generation 2 Operational Guide Videos
on K-Patents official YouTube channel