YSI 3200 - Manual (Page 22)

System Configuration and Operation Section 3
4. Place the cell (and temperature probe, if used) in the solution at the first desired
temperature point and wait for the reading to stabilize. Ensure that the cell and
temperature probe are submerged and that no air bubbles are trapped in the cell.
5. Press the [POINT 1] soft key to store point 1.
6. Place the cell (and temperature probe, if used) in the same solution at the second desired
temperature point and wait for the reading to stabilize.
7. Press the [POINT 2] soft key to store point 2.
8. Remove the cell (and temperature probe, if used) and rinse with deionized water.
The linear temperature compensation coefficient has now been calculated and stored under the
current cell configuration.
NOTE: Any non-linear temperature compensation curve stored under the current configuration
will be retained.
Non-linear Temperature Compensation
From the Cell Temp menu, press the [N. L. TEMP] soft key to enter the NL Temp menu. This
menu enables the user to calculate a non-linear temperature compensation curve for a solution by
measuring it while the temperature is changed.
NL TEMP
[20.00] °C High 17.34 °C
[0.00] °C Low 1.34 S
CURRENT CURVE WILL BE ERASED
START END
Current
Temperature end
To calculate and store the non-linear temperature compensation curve:
1. Verify that the current configuration contains the correct cell constant for the current cell.
2. Clean the container and YSI 3200 Series cell (or YSI 3400 Series and temperature probe)
with deionized water.
3. Rinse the cell (and temperature probe, if used) with some of the solution to be analyzed.
4. Place the cell (and temperature probe, if used) in the solution at one end of the
temperature range that you want to compensate over and wait for the reading to stabilize.
5. Press the [START] soft key.
6. Change the temperature of the solution while the cell (and temperature probe, if used) is
measuring it.
7. When the temperature reaches the end of the range you want to compensate over, press
the [END] soft key.
8. Remove the cell (and temperature probe, if used) and rinse with deionized water.
The non-linear temperature compensation curve has now been calculated and stored under the
current cell configuration.
YSI Incorporated Model 3200 18