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Waters HPLC - Page 27

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Getting started 1-17
ENTER – Registers the value you type for a parameter. The system
evaluates each entry to determine whether it is within the proper limits.
An error message appears when the value is not allowed.
CLEAR – Erases the value typed immediately beforehand, if you did not
press ENTER. The value that previously occupied the field reappears.
This key also clears warning messages from the screen.
Number – Numerals 0 to 9 plus the decimal point.
Entering values
1. Use the arrow keys to move the cursor to the field in which you intend to
enter a value.
2. Type a value. If you do not know the field’s allowable range, press the
HELP screen key.
3. Press ENTER. The program evaluates the new entry for proper type
and range.
4. An acceptable entry becomes the current parameter value, and the
cursor moves to the next logical entry position.An unacceptable entry
prompts an error message at the bottom of the screen, and the previous
value remains the current parameter value. Press the CLEAR key to
clear the error message and repeat steps 2 and 3.
Function keys
The five function keys are directly below the screen keys.
Function keys for a PowerLine or gradient controller
Key Description
SETUP Sets up the system hardware.
DIRECT Programs the condition for the attended operation.
OPERATE
METHOD
Begins the method run.
PROGRAM
METHOD
Sets up and stores Gradient, Event, and Detector
tables.
PROGRAM TABLE Sets up and stores the Method table.

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