YSI 30, Руководство по эксплуатации

Страница: 19 / 52

YSI, Incorporated Model 30/30M 15
SECTION 6 ADVANCED SETUP
The default settings of the YSI Model 30 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 30 flexible to accommodate these “advanced users.”
If, for example, you are using the YSI Model 30 for a process control application which 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 30 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 30.
1. Turn the instrument on and wait for it to complete its self test procedure.
2. Press and release both the DOWN ARROW and MODE keys at the same time. The CAL
symbol will appear at the bottom left of the display and the large portion of the display will
show 1.91% (or a value set previously using Advanced Setup).
1.91
%
22.7
°C
CAL
3. Use the UP ARROW or DOWN ARROW key to change the value to the desired new
temperature coefficient.
1.50
%
22.7
°C
CAL
Temperature coefficient
CAL symbol
New temperature coefficient