K-Patents PR-23-SD Generation 1 - Manual (Page 15)

Safe-Drive™ Process Refractometer PR-23-SD Best Practices, Generation 1
© Copyright K-Patents 2013. All rights reserved.
15
Recommended steam prism wash settings
Minimum above
process pressure
Maximum above
process pressure
Wash time Recovery Interval
Steam (SN) 5 bar (75 psi) 8 bar (115 psi) 3-5 s 20-30 s 20-30 min
NOTE: Damage caused to prism by excessive pressure or washing is not covered by the
product warranty.
Choose the correct steam source pressure by comparing it to the process pressure.
The steam source pressure must be higher than process pressure to provide adequate
washing, but excessive pressure may also cause premature damage or etching of the
prism. Also, if the washing phase is programmed to last too long, the prism may wear
out prematurely.
2. Install the steam pipes in the SDI valve, as instructed below.
NOTE: All the necessary wash fittings are included in the valve.
3. Connect the steam wash system power supply.
For more information, please see K-Patents Steam Instructions.
Figure 11 Wiring steam wash system
For more information on controlling the prism wash cycle, please refer to chapter
Configuring relays in K-Patents user documentation.