- SAFE-DRIVE™ isolation and retractor allow for safe and easy insertion and removal of the refractometer sensor under full process pressure. Easy-to-place and self-retaining design. Triple sealing by two lip seals and an O-ring.
- Accidental opening or closing of the isolation ball valve is prevented.
- The retractable prism wash nozzle can be safely removed for a service check.
- SAFE-DRIVE™ retractor protects the user from accidental spills during retraction and insertion.
- The SAFE-DRIVE™ sensor is very easy to install to any pipe size (2 inch...24 inch) by welding or via a spool piece (diameter 2 inch...20 inch). Can be mounted either on horizontal or vertical pipe - lines. Maximum static pressure is 40 bar, maximum operating pressure is 10 bar. Spool piece process connection is DIN-flange PN25/ANSI-flange 150 lbs.
- Calibration is identical for any SAFE-DRIVE™ sensor: Refractive Index (nD) 1.3200 – 1.5300, which corresponds to 0-100 Conc at 100°C (212°F). Therefore, all sensors can be freely interchanged without optical calibration or parameter changes.
- Process temperature range: -20° – 170°C (-4° – 340°F)
- Dual connectivity: one transmitter can operate two sensors independently. A second sensor can be easily integrated later.
- Completely digital system: particles and bubbles do not affect operation or accuracy.
- Patented CORE-optics module: no drift, no re-calibration, no mechanical adjustments.
- Ethernet connection and remote panel through Internet allow for data-logging and remote operation, e.g. review instrument data and diagnostics.
- Depending on the installation point requirements of the fiber line, there are two types of SAFE-DRIVE™ Process Refractometer PR-23-SD systems specifically designed for reliablitity and easy installation directly in the process pipe line:
+ SAFE-DRIVE™ Process Refractometer PR-23-SD with steam prism wash for filtrates and weak black liquor lines
+ SAFE-DRIVE™ Process Refractometer PR-23-SD with special isolation valve and installation plate for the blow line and the pulp stock line.