4. Measurement of Salinity, Temperature and Specific
Gravity
4.1 Principle of salinity measurement
The salinity
measurement principle of this product is base on the
electric conductivity measurement method. Salt exists as sodium ion
and chloride ion within aqueous solution. As the quantity of sodium ion
and chloride ion increases, the solution conductivity also increases
proportionately to the increased salt concentration. Using this principle,
salinity is determined by calculating the conductivity of a given sample.
4.2 Testing Temperature, Salinity and Specific Gravity
1. Press ON/OFF button once to switch on, temperature reading will
appear on the display.
2. Dip the PROBE SENSOR into the liquid and shake vigorously to
remove bubbles on probe.
*Note: Presence of bubbles will affect reading accuracy
3. Wait for the temperature reading untill it stops changing and for a
stablized temperature to establish. Now you can press the MODE
button to switch to Salinity measurement.
4. Wait 10 seconds and confirm the Salinity (ppt) measurement.
5. Press MODE button to display Specific Gravity measurement.
Wait 10 seconds for the Specific Gravity before reading results.
6. Press the HOLD/CAL button at anytime to “Hold” or “Freeze” the
displayed reading. Press it again to “Release” for another test.
7. After each test, rinse the sensors with distilled water between each
test and wipe it dry with a clean cloth or tissue paper.
8. After a series of tests, clean the PROBE SENSOR in mild detergent
then rinse with water throughtly. Wipe the PROBE SENSOR dry
before storing away.
9. Press the ON/OFF button to switch off. The battery saving function
will automatically shut off the meter if no activity for about 1 minute.
