Hanna Instruments HI 9828, Инструкция по эксплуатации

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• To insert a different calibration value, after
pressing CAL. POINT, press also CUSTOM and
insert the desired value with the keyboard.
• When the reading is stable READY and CON-
FIRM appear. Press CONFIRM to accept the
calibration point.
• After the first calibration point is confirmed, put the probe in a D. O. 0% satu-
ration standard solution and wait until the measure is stable.
• Press CONFIRM to accept the calibration point.
• At the end of calibration the following messages appear: “Storing data on
probe, please wait...”, “Updating GLP data, please wait ...” and “Calibration
completed”.
• Press OK to return to the calibration menu.
• To return to the main menu, from the calibration menu, press ESC repeatedly.
NOTES: The user can perform a single point calibration with standard values
To abort the calibration after first point is accepted, press ESC.
If the D.O. input is not within the acceptable range, the message “IN-
VALID INPUT” will be shown.
D.O. concentration
To calibrate the D.O. concentration, it is necessary a solution with known con-
centration.
• In D.O. calibration menu, select DO concen-
tration.
• Insert the known value and press OK.
• When the reading is stable, CONFIRM ap-
pears; press CONFIRM to accept the value.
• When the messages “Storing data on probe, please wait...”, “Updating GLP
data, please wait ...” and “Calibration completed” appear the calibration is com-
pleted and the user can return to the main calibration menu by pressing OK or
to the main menu by pressing ESC repeatedly.