Chapter 4. Initial Setup and Programming
32 AquaTrans™ AT600 User’s Manual
4.2 AT600 Keypad Operation
There are six keys and two LEDs on the AT600 keypad. The green light is a system health indicator and is on
when the meter is operational and not in error. The red light is a system status indicator and is on when the
meter is in error. Both lights being off indicates that the system is in configuration mode or no power has
been applied to the meter.
Figure 31: The AT600 Keypad
The six keys on the keypad enable users to program the AT600:
• [] - confirms the choice of a specific option and all data entry within that option
• [] - enables users to exit from a specific option without saving unconfirmed data
• [] and [] - enable users to highlight a specific window in the display option or to scroll through a
list of options. They are also used to change individual characters in a text string.
• [] and [] - enable users to scroll to a specific menu option, or to highlight a specific character in a
text string.
When powered On, the AT600 initialization screen is shown, followed by a measurement display (see below).
As a guide in following the programming instructions in this chapter, the complete AT600 menu maps can be
found in “Menu Maps” on page 187, and the relevant portions are reproduced throughout this chapter.
IMPORTANT: If no key has been pressed for 5 minutes, the AT600 exits the Keypad Program and returns to
displaying measurements. Any unconfirmed configuration changes are discarded.
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