Conductivity, Salinity, Tds Measurements - JENCO 3177MB Operation Manual

preferably a standard in the middle range of the solutions to be
measured. Immerse the probe (at least 2" to 3" or 5 to 7cm
from the tip) without touching the sides of the calibration
container. Shake the probe lightly to remove any air bubbles
trapped in the conductivity cell. The unit will display the
conductivity value. Wait for the values of temperature and
conductivity to stabilize for a few seconds. Press the "Up" or
"Down" keys to adjust the reading of the display until it
matches the value of the known standard conductivity solution
at 25 ℃. Press the "Enter" key to save and exit the
calibration.
[Note: If you want input K value directly, press the "Enter"
key to go to the K Value Input.]
K Value Input
The unit will display the cell constant value of the conductivity
probe with the CELL K= staying on. Adjust the probe constant
to a known value by pressing the "Up" or "Down" keys. You
can now input the K value (from 70% to 130% of the probe
basic cell constant). Press the "Enter" key to exit calibration
and return to normal operation.
B. Conductivity, Salinity, TDS Measurements
1. Turn the unit on. Connect the conductivity probe to the unit.
2. Press "Mode/Clear" key to go to conductivity/salinity/TDS
mode. "ATC" icon, "uS/cm (ppt/mg/L)" icon and "AUTO" icon
will lit up. Place the probe in the solution to be measured.
Immerse the probe (at least 2" to 3" or 5 to 7cm from the tip).
Shake the probe lightly to remove any trapped air bubbles in
the conductivity cell.
3. Allow sufficient time for the display to stabilize. The meter
will display the conductivity/salinity/TDS value of the sample at
the displayed sample temperature.
[Note: Press "Mode/Clear" key to enter the desired
measurement mode (Conductivity, Salinity or TDS). The
message"rAn9" may appear briefly on the display indicating
auto-ranging; this is normal. Allow temperature to stabilize
before taking measurements.]
9