Emerson Daniel Danalyzer 1000, Hardware Reference Manual

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MODEL 1000
SEP 2005
EQUIPMENT DESCRIPTION
2-21
2.3.2 Optional Keypad and Display
A keypad and liquid crystal display (LCD), optionally built into the enclosure's front panel, are
available for the purged and rack mount versions of the GC Controller. The built-in keypad and LCD
are especially useful for the purged version. They permit onsite display, control, and data entry at
a GC Controller that is situated in a hazardous environment. Note, however, that the control
capabilities offered through the built-in keypad and LCD are more limited than those available
through a PC connected to the GC Controller.
For details on using the Controller's built-in keypad and LCD, see Section 4, this manual.
2.3.2.1 Keypad
The front panel keypad is an 18-Key data/function entry device arranged so that the ALT key causes
the lower key markings to be displayed/entered. The designations marked on the top of the keys will
be displayed/entered when the ALT key is not pressed.
2.3.2.2 Display
The Controller display, measuring 5.5 x 2 inches, is capable of 8 lines by 41 characters. It is certified
for use with a purged NEMA 4X, Class C and D, enclosure. The display is capable of producing the
complete alphabet and numbers from the keypad. The video display on the Controller may show a
truncated (or curtailed) version of the displays available at the PC. Although the keypad/display
located at the Controller site can do many of the functions that the PC software can do remotely, any
extensive operations are more conveniently performed through MON2000 on the larger screen and
keypad of a PC. A few adjustments will be more conveniently accomplished at the Controller site.
2.3.3 Alarm Specifications
In the GC Controller there is the capacity for 36 alarms. There are also operator defined alarms.
Some of the alarms are active only if the configuration of the Controller requires the function that
is associated with those alarms. Active alarms are shown in the ALARMS menu.