11
SECTION 1, continued
Displays the current date. In the RECALL menu, displays the date the recalled sample
was stored. Also used as a numeric key function when the “
#” icon is illuminated at the
base of the display screen. Used to set the current date from the SETUP menu.
Displays the current time. In the
RECALL menu, displays the time the recalled sample
was stored. Also used as a numeric key function when the “#” icon is illuminated at the
base of the display screen. Used to set the current time from the
SETUP menu.
When performing an analysis, this key displays the concentration value of the reading.
Used as a toggle key to access alternate chemical forms, if available. Also used as a
numeric key function when the “
#” icon is illuminated at the base of the display screen.
Scrolls up through selected menus or stored data.
When performing an analysis, this key allows the user to store a current reading in one of
99 sample locations. The user can store the reading as numbers 1-99 by pressing
ENTER. Use the up and down arrow keys to find unused storage numbers or use numeric
keys to enter a sample number. Also used as a numeric key function when the “#” icon is
illuminated at the base of the display screen.
Begins the retrieval of stored sample readings (
RECALL icon illuminates in the upper-
left portion of the screen). Also used as a numeric key function when the “
#” icon is
illuminated at the base of the display screen.
Toggles between displaying Absorbance and % Transmittance. Also used as a numeric
key function when the “
#” icon is illuminated at the base of the display screen.
Scrolls down through selected menus or stored data.
Zeros the instrument on the current sample blank. Also used as a numeric key function
when the “
#” icon is illuminated at the base of the display screen.
When the READ icon is illuminated at the base of the display screen, this key reads and
displays the sample concentration. Also used as a numeric key function when the “
#” icon
is illuminated at the base of the display screen; the first press is a decimal, the second
press toggles the value sign.
If using a Hach-stored program, the TIMER key automatically sets the appropriate
reaction time. If not in a Hach-stored program, the TIMER key allows the user to set a
timer. When the “
#” icon is illuminated at the base of the display screen, CE clears the
most recent level of action (deletes the whole entry, not just the last number).
Within a menu, selects the displayed menu item. During numeric entry, accepts the
displayed value.
Table 1 Keys and Descriptions (Continued)
KEY DESCRIPTION
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