Hach-Lange 2100 AN Laboratory Turbidimeter User Manual - Manual (Page 49)

4. Push UNITS/Exit to return to measurement mode.
Change an ASC unit name or one ASC data point
Any ASC unit name or data point can be changed.
Note: Push UNITS/Exit at any time during this procedure to go back to
Measurement mode and not save changes.
1. Push UNITS/Exit until the correct ASC name is shown on the
display.
2. Push CAL/Zero to enter ASC calibration mode.
The display flashes "EDIT?".
3. Push ENTER.
The left digit flashes.
4. To change the unit name, use the arrow keys to change the unit
name on the display.
5. Push ENTER.
The mode display flashes "01" for data point 1. The NTU value that is
assigned to data point 1 is shown on the display.
6. To change an NTU value for a data point:
a. Push the up arrow key until the correct data point is shown on the
mode display (e.g., "04" for data point 4).
b. Push the right arrow key to change the NTU value of the data
point.
The display shows the current NTU value with the decimal point
flashing.
c. Push ENTER to accept the decimal point location.
The left digit flashes.
d. Use the arrow keys to change the NTU value on the display.
e. Push ENTER to accept the NTU value.
The display shows the MGL value assigned to the data point with
the decimal point flashing.
7. Push ENTER to accept the decimal point location.
The left digit flashes.
8. Push ENTER to accept the MGL value shown on the display.
The mode display flashes the next data point (e.g., "05" for data point
5).
9. Push CAL/Zero to save the changed ASC calibration.
"ERR13" is shown on the display if the NTU values are not entered in
ascending order or only one point has been entered. Push ENTER to
clear the error message and inspect the NTU values entered with the
up and down arrow keys.
Delete one ASC data point
Any ASC data point can be deleted individually.
1. Push UNITS/Exit until the correct ASC name is shown on the
display.
2. Push CAL/Zero to enter ASC calibration mode.
The display flashes "EDIT?".
3. Push ENTER.
The left digit flashes.
4. Push ENTER to accept the unit name.
The mode display flashes "01" for data point 1. The NTU value that is
assigned to data point 1 is shown on the display.
5. Push the up arrow key until the correct data point is shown on the
mode display (e.g., "04" for data point 4).
6. Push the right arrow key to change the data point.
7. Push ENTER to accept the decimal point.
The left digit flashes.
8. Push the up and down arrow keys until an "X" is shown on the
display.
9. Push ENTER to delete the data point.
The display of "----- NTU" shows that the data point value is deleted.
10. Push CAL/Zero to save the changed ASC calibration.
Note: The deleted data point is replaced by blanks and is not used in the
calibration curve calculation.
English 47