Instruction Manual Mi 306 EC/TDS Meter
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If temperature compensation is active, measurements are compensated using a default
temperature coefficient of 1.90 %/°C.
It is possible to select a different temperature coefficient (TC) in the 0.00 to 6.00 %/°C
range by entering the setup mode and selecting the "tc" item (see SETUP section for
details).
The current temperature coefficient can be quickly viewed pressing
SHIFT+ATC. The value is briefly displayed on the lower LCD.
EC/TDS CALIBRATION
EC calibration is a single point procedure. Selectable calibration points are: 0.0, 84.0
μS/cm, 1413 μS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm,111.8 mS/cm.
To enter EC calibration select the EC range and press the CAL key.
Note: TDS reading is automatically derived from the EC reading and no specific
calibration for TDS is needed. Pressing CAL while TDS range is selected has no
effect.
Rinse the probe with some of the calibration solution or deionized water. Immerse the
probe into the solution. The sleeve holes must be completely submerged. Tap the probe
repeatedly to remove any air bubbles that may be trapped inside the sleeve.
Begin with Zero calibration, just leave the dry probe in air.
The indications "REF" and "CAL" are displayed. The upper LCD shows the uncalibrated
EC reading. The lower LCD shows the buffer value. The stability indicator "
" blinks.
Select the desired value of buffer with the
▲
and
▼
keys, if
necessary.
