Sper scientific 850048, Instruction Manual

Page: 9 / 36

9
MEASUREMENT PROCEDURES
1. Remove the protective cap from the DO probe.
2. Insert the DO probe into the meter.
3. Press the power button to turn the meter
ON .
4. Hold the probe in the air until the LCD reading has
stabilized. This may take several minutes.
5. The DO reading will be displayed on the LCD.
You may change the display from % to mg/L
as desired by pressing % / mg/L .
6. Place the probe into the sample solution, making
sure that the electrode is completely immersed in
the sample.
7. Stir the probe gently to create a homogenous sample.
8. Wait until the reading has stabilized.
Storing DO Readings in Memory
1. To store the reading in memory, the value must be
displayed in mg/l. Press
% / mg/L
if needed to change
from % to mg/L.
2. Press the MEM button to save the value.
3. The memory number will be displayed on the LCD.
If the memory is full, “FUL” will be displayed. See
Memory Clear Function on p.12.