Electro-Chemical Devices (ECD) H10C - Manual (Page 8)

8
Temperature Coefficient
The meter uses the temperature coefficient to calculate
temperature compensated conductivity. The default value is 1.91%.
To change the temperature coefficient, use the up and down keys
to adjust the value between 0 and 4.00%. Press “Enter” key to save
the new value, or press “Mode” key to cancel the change and
display the Temperature Reference screen.
Temperature Reference
The unit uses the temperature reference value to calculate
temperature compensated conductivity. The default value is 25°C.
To change the temperature coefficient, use the up and down keys to
adjust the value between 15 and 25°C. Press “Enter” key to save the
new value, or press “Mode” key to cancel the change and display
the Conductivity Calibration screen.
Conductivity Calibration
1. 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) without touching the sides of the
calibration container. Shake the probe lightly to remove
any air bubbles trapped in the conductivity cell.
2. Allow temperature to stabilize. The message “rAGE”
(range) may display briefly to indicate unit 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 twice to indicate a successful
calibration, Then automatically switches to normal
operation mode.
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.