13
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 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. Calibration is now complete and
the unit will switch to “Measurement” mode automatically.
C. Conductivity Measurements
1.
Turn on the unit. 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.
2.
Press “MODE” key to enter into the measurement mode.
The message “rAGE” (range) may appear briefly on the
display indicating auto-ranging; this is normal. Allow
temperature to stabilize read the value.
D. Save, Recall and Delete Data
a.
Saving readings to memory.
1.
In the modes of either temperature compensated or
non-temperature compensated conductivity, pH, ORP,
temperature compensated TDS or salinity, hold the “ENTER”
key for 5 seconds to save data. The “Save” icon with the
corresponding site number will lit up for a brief moment to
indicate a successful data to save.
oUer
us
CAL
25.0
℃
