Conductivity Measurements; Error Displays And Troubleshooting - ECD H10C Instruction Manual

C. Conductivity Measurements
1.
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). Shake the probe lightly to remove
any trapped air bubbles in the conductivity cell.
2.
Press "Mode" key to enter the desired measurement mode. The message "rAGE"
(range) may appear briefly on the display indicate auto-ranging; this is normal.
Allow temperature to stabilize before taking measurements.

Error Displays and Troubleshooting

Main
Display
"over" during
Measurement
"over" during
Calibration
"over" during
Measurements
[Note: If the unit still does not perform normally after the above measures are taken,
call ECD Service Department.]
Secondary Possible
Display Cause
● Conductivity is
> 200mS.
/
● Salinity is
>70.0 ppt.
Cell Constant or
/ Calibration solution
is out of range.
Temperature is
Over
> 194°F (90°C)
Temperature is
undr
< 14°F (-10°C)
Corrective
Action
 Ensure the probe is immersed
at least 2"~3" or 5~7cm from
the tip, below the surface of
the sample/standard solution.
 Allow sufficient time for the
electrode and Temp probe to
stabilize.
 Recalibrate with correct value
for the conductivity standard.
 Replace conductivity
standard.
 Clean cell
Decrease the sample
temperature
Increase the sample
temperature
8