JENCO 3020M Operation manual - page 11
changes made will be cancelled and the previous calibration
settings will be retained.
Conductivity Calibration
(a) Immerse the probe in a standard of known conductivity,
preferably a standard in the middle range of the solutions
to be measured. Immerse the probe (at least 2" to 3" or
5~7cm from the tip) into standard solution without touching
the sides of the calibration container. Shake the probe
lightly to remove any air bubbles trapped in the
conductivity cell.
(b) Allow temperature to stabilize. The message "rAGE"
(range) may appear briefly on the display indicating
auto-ranging; this is normal. After temperature stabilization,
use the "UP" and "DOWN" keys to adjust the conductivity
value to that of the conductivity standard at 25
℃
. Press
"ENTER" key to calibrate. The unit beeps to indicate a
successful calibration. Calibration is now complete and the
unit will automatically switch to "Measurement" mode.
C. Conductivity Measurements
1.
2.
Turn the unit on. Place the probe in the solution to be
measured. Immerse the probe (at least 2" to 3" or 5~7cm
from the tip) in the sample solution. Shake the probe
lightly to remove any trapped air bubbles in the
conductivity cell.
Press "MODE" key to enter into the desired
measurement mode. The message "rAGE" (range) may
appear briefly on the display indicating auto-ranging; this
is normal. Allow temperature to stabilize.
D. Save, Recall and Delete Data
a.
1.
2.
Saving readings to memory.
In compensated conductivity, salinity, total dissolved solids
(TDS) and uncompensated conductivity modes, press the
"ENTER" key to save data. The "Save" icon with the
corresponding site number will lit up for a brief moment to
indicate a successful data save.
If the "Full" icon is displayed, this means that all 50 data saving
sites are used up. No new data can be saved until existing
saved data are deleted.
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