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25
CALIBRA
TION
CUSTOM CALIBRATION POINT
To select the custom value:
• Press
Cal. Point
then
Custom
.
• A text box will be displayed. Use the alphanumeric keypad to enter the value, then press
Accept
.
ABSOLUTE CONDUCTIVITY
From the
Calibration
menu, use the
/
keys to highlight
Absolute Conductivity
and then press
Select
.
• A text box will be displayed. Use the alphanumeric keypad to enter the value, then press
Accept
.
• Pour small quantities of the calibration solution into clean beakers. To minimize cross-contamination,
use two beakers: the first one for rinsing the sensor and the second one for calibration.
• Submerse the EC electrode into the calibration rinse solution and move it up and down gently to
fill the EC sensor channels with solution.
• Submerse the EC electrode into calibration solution, tap the electrode gently to remove any trapped
air bubbles. The “Not Ready” message is displayed.
• Once the reading has stabilized, the countdown timer will count down until the display shows the
“Ready” message.
• Press
Confirm
to accept the calibration point.
• Press
OK
to return to the
Calibration
menu.
• Press
Measure
to return to the measurement screen.
SALINITY
Solutions with known PSU values can be used to calibrate the sensor.
From the
Calibration
menu, use the
/
keys to highlight
Salinity
and then press
Select
.
• A text box will be displayed. Use the alphanumeric keypad to enter the value, then press
Accept
.
• Pour small quantities of the calibration solution into clean beakers. To minimize cross-contamination,
use two beakers: the first one for rinsing the sensor and the second one for calibration.
• Submerse the EC electrode into the calibration rinse solution and move it up and down gently to
fill the EC sensor channels with solution.
• Submerse the EC electrode into calibration solution, tap the electrode gently to remove any trapped
air bubbles. The “Not Ready” message is displayed.
• Once the reading has stabilized, the countdown timer will count down until the display shows the
“Ready” message.