35
7.4 Manual Temperature Setting
If the Temperature sensor is not connected, the temperature of the sample solution must be set
manually for accurate pH measurements. A separate thermometer will be required for this.
1.
Switch the meter on.
2.
Measure the temperature of the sample.
3.
Select Temperature Calibration (
→
→
→
→
F1:Calibrate
→
→
→
→
F3:Temp.
).
4.
The current temperature setting is now displayed. For example…
Enter Manual
Temperature:25.0
O
C
Menu Quits
5.
Enter the temperature of the sample using the Numeric Keypad.
Press
to save the new value.
Alternatively, press
to quit and retain the current setting.
6.
When returning the
smart
CHEM
-Titro
to normal measurement mode, note the “
C
” in the
temperature readout alternating with an “
M
” indicating that Manual Temperature Compensation
is in use. For example…
400
.
0
mVR
25
.
0
O
M
31/12/04
Stabilising 12:00:00