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MOBILITY DHH800-MFC CONFIGURATOR INSTRUCTION MANUAL
2.3
Keypad Symbols
On/Off
Pressing the 0 (Off) / 1 (On) key powers up or turns off the Mobility MFC. As the unit powers up, an
internal diagnostic check is performed. Any abnormalities are posted on the display. The unit will
briefly display the Mobility MFC model number and then check for a HART device with address of
zero. If a device with zero address is found, the Mobility MFC immediately goes into online status and
displays information about the device. If no device is found, the Mobility MFC enters the Mobility MFC
Main navigation screen. To turn the Mobility MFC off, press and hold the ON/OFF key for
approximately .5 seconds. Unit will power down provided a critical HART operation is not in process.
Quick Menu
The Quick Menu key initiates HART communications and then displays ten (10) HART menu choices
for the connected device. These menus are used to short cut the traditional HART menus to enable
the user to arrive quickly at the desired functions. Typical Quick Menu options include: Main Menu,
Config Menu, Rerange, Basic Info, Construction Materials, Display, Sensors, Signal Conditioning,
Self Test. Quick Menu is disabled while critical HART operations are in process.
Home
The key sequence SHIFT, Home returns the user to the initial or "home" HART menu for the
connected device. The Home function is disabled while critical HART operations are in process.
Document
This key provides rapid access to HART communication Save/Send Configs options, List/Edit
Configs, and Create Configs functions for all Mobility MFC models. This key also provides
documenting functions used with the ABB Device Management System software. Access to this
key is disabled while critical HART communications are in process.
Display Contrast
This key allows the user to adjust the contrast of the LCD display for ambient lighting and user
preferences at any time and in any operating mode. Pressing and holding this key cycles through all
available contrast settings. If the display is faded or blacked out, simply depress the key until the
display returns to an acceptable level. After adjusting Display Contrast, wait at least five (5) seconds
before turning unit off to insure storage of new contrast setting. Ambient temperature compensation
is included in the Mobility DHH800-MFC.
Back Light
This key provides a backlight to illuminate the display in poor light conditions. Battery life is impacted
by long-term use of the backlight feature. An automatic shut off timer is available to the user under the
Main Menu's Mobility MFC soft key.
Alphanumeric / Symbol Entry
The alphanumeric keys have the heaviest population on the keyboard and are the method of entering
data into the Mobility MFC. Each Mobility MFC display has a default alpha or numeric / symbol entry
2
B
mode based on the most likely used mode for the display's function. This reduces user workload to a
minimum. Pressing the ALPHA LOCK key activates the other entry mode at the user's convenience.
Pressing the SHIFT key converts the next keystroke to the inactive entry mode and then automatically
L
reverts back to the default mode. The letter "A" in the display header line indicates the alpha input
default is active while a # sign in the display header indicates the numeric / symbol input is the default.
2-2
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