5. Calibration
1. Perform calibration regularly or before a series of tests.
2. Use only 30ppt standard solution for this procedure.
3. Make calibration only in liquid of between 15 to 30°C
4. Switch on unit and press
MODE
button once to switch to salinity
mode (ppt).
5. Dip the sensor into 30ppt solution centrally; making sure the sensor
does not contact the bottom or sides of the bottle.
6. While the sensor is in the solution, press and hold-down
HOLD(CAL)
button for about
15
seconds
or until it display shows
C A L
flashing.
7. In a while, display will show 30ppt and return to normal measuring
mode.
8. Calibration is completed
9. If display show 31, 32 or any other values, repeat the calibration.
Note: Never perform calibration if unit is not dip into 30ppt solution, as this
will cause inaccuracy to the unit. If reading is wrong, repeat this calibration
procedure.
6. Temperature display Selection (°C / °F)
1. Switch on the unit. Ensure display is in the temperature mode.
2. Press and hold-down
MODE
button until display shows
°F
.
3. Release the button,
°F
reading will be displayed everytime.
4. To switch to
°C
temperature display, repeat step 1 to 3.
