6. Measuring Salt, TDS, and Temperature
(1) Remove the protective cap. Turn the 390a on and the salt concentration
is displayed. Fully immerse the sensor into the liquid to be measured. If a
solid food is being measured, break it into pieces and dilute it with water.
Allow approximately 10 seconds for the reading to stabilize. After the read-
ing stabilizes, push the Mode button to select the TDS level and tempera-
ture measurement modes. (To switch between °C/°F units, when tempera-
ture is displayed press and hold the ‘MODE’ key until the display changes.)
(2) Pushing the 'HOLD /CAL' switch will freeze the display and 'HOLD'
appears on the display. Remove the salt meter from the sample and after
confirming the measured value, press the 'HOLD/CAL' switch to deactivate
display hold.
(3) Wash the sensor with a neutral detergent using a soft cloth or sponge
each after use and rinse with water. Dry the sensor and store with the sen-
sor cover installed.
Note: Use the included spoon attachment as needed to test samples.
Sample Location for Accurate Measurement
6
www.
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1.800.561.8187