YSI, Incorporated
Model 85
15
SECTION 6 ADVANCED CONDUCTIVITY SETUP
The default settings of the YSI Model 85 are appropriate for the vast majority of measurement
applications. However, some measurement applications require very specific measurement criteria.
For that reason, we have made the YSI Model 85 flexible to accommodate these “advanced users.”
If, for example, you are using the YSI Model 85 for a process control application that requires that
the conductivity readings be compensated to 20
o
C instead of 25
o
C -- this is the section to read. Or,
if your application for the YSI Model 85 involves the measurement of a very specific saline solution,
the default temperature coefficient may need to be changed to get the very best measurement of that
specific salt.
IMPORTANT:
There is never a need to enter Advanced Setup Mode unless your special
measurement application calls for a change in reference temperature and or temperature coefficient.
Therefore, unless you are certain that your application requires a change to one or both of these
criteria, do not modify the default reference temperature (25
o
C) or the default temperature
coefficient (1.91%).
6.1 CHANGING THE TEMPERATURE COEFFICIENT
Follow these steps to modify the temperature coefficient of the Model 85.
1.
Turn the instrument on and wait for it to complete its self-test procedure.
2.
Use the
MODE
button to advance the instrument to display conductivity.
3.
Press and release both the
DOWN ARROW
and the
MODE
buttons at the same time.
The
CAL
symbol will appear at the bottom left of the display. The large portion of the display will
show
1.91 %
(or a value set previously using Advanced Setup).
4.
Use the
UP ARROW
or
DOWN ARROW
button to change the value to the desired new
temperature coefficient.
5.
Press the
ENTER
button. The word “
SAVE
” will flash across the display for a second to
indicate that your change has been accepted.
6.
Press the
MODE
button to return to normal operation; the CAL symbol will disappear from the
display.
Summary of Contents for 85
Page 6: ...Introduction Section 1 YSI Incorporated Model 85 2 ...
Page 10: ...Preparing the Meter Section 2 YSI Incorporated Model 85 6 ...
Page 12: ...Preparing the Probe Section 3 YSI Incorporated Model 85 8 ...
Page 14: ...Overview of Operation Section 4 YSI Incorporated Model 85 10 ...
Page 18: ...Calibration Section 5 YSI Incorporated Model 85 14 ...
Page 23: ...Making Measurements Section 7 YSI Incorporated Model 85 19 ...
Page 24: ...Making Measurements Section 7 YSI Incorporated Model 85 20 ...
Page 28: ...Maintenance Section 9 YSI Incorporated Model 85 24 ...
Page 36: ...Discussion of Measurement Errors Section 11 YSI Incorporated Model 85 32 ...
Page 43: ...Warranty and Repair Section 13 YSI Incorporated Model 85 39 ...
Page 45: ...Accessories and Replacements Section 14 YSI Incorporated Model 85 41 ...
Page 47: ...Specifications Appendix A YSI Incorporated Model 85 43 ...
Page 53: ...Required Notice Appendix C YSI Incorporated Model 85 49 ...
Page 55: ...Conversion Chart Appendix D YSI Incorporated Model 85 51 ...
Page 59: ...Calibration Values Table Appendix F YSI Incorporated Model 85 55 ...
