1 prism wash test – K-Patents PR-23-SD Generation 1 User Manual
Page 29

Safe-Drive™ Process Refractometer PR-23-SD Best Practices, Generation 1
© Copyright K-Patents 2013. All rights reserved.
29
Configure the mA output.
CALIBRATION ›
OUTPUTS › mA
OUTPUTS
For more information,
see chapter
Configuring mA
Outputs in K-Patents
PR-23 Instruction
Manual.
Configure prism wash relay
(relay 1 or 2).
CALIBRATION ›
RELAYS
For more information,
see chapter
Configuring relays
in K-Patents PR-23
Instruction Manual.
Prism wash test
Task
OK
Failed
Notes
Observe the temperature
and optical image for slight
changes that indicate that
wash is functioning. One or
more of the following changes
should take place:
- nD value decreasing (most
apparent change)
- T value decreasing
- QF value decreasing or
increasing
For more information,
see chapter 5.1 Prism
Wash Test in these
instructions and
chapter Prism wash
in K-Patents PR-23
Instruction Manual.
Calibration check
Task
OK
Failed
Notes
Check that calibration
corresponds to the lab results
CALIBRATION
› CHEMICAL
& FIELD
PARAMETERS
› FIELD
PARAMETERS
For more information,
see chapter 5.2
Calibration Check in
these instructions and
chapter Calibrating
the concentration
measurement in
K-Patents PR-23
Instruction Manual.
5.1 Prism Wash Test
Prism wash system is essential for a fully functional refractometer. Regular testing of the
prism wash is highly recommended.
The curve should react to the wash and the temperature change slightly.
NOTE: Your transmitter may not look excatly like the image above during the wash. The
visible changes in the curve and the temperature depend on viscosity, steam pressure and
temperatures of solids and steam and also to your version of the software.