14
U N I S EC DI G ITA L
O P ER AT I O N A N D M A I N T EN A N C E M A N UA L
4.1 LHMI Operation
In UniSec application, the LHMI to be connected to
MDC4-M is OP320, which provides the following
display and setting.
• Healthy diagnosis.
• Temperature characteristic.
• Apparatus characteristic (Internal pressure).
• Environment characteristic.
• Setting
LHMI Interface
OP320 LHMI interface
OP320 LHMI Keypad
The LHMI contains the following elements:
• Display
• Buttons
• Buzzer
• Communication port
LHMI has a STN LCD with yellow-green backlight,
display area 192*64, support for Simplified Chinese
and English display, the contrast can be adjusted
through the Potentiometer on LHMI housing.
Keypad
The LHMI keypad contains push-buttons which are
used to navigate in different views or menus, to read
the monitoring and diagnose data, or set the system
communication address and temperature alarm
value.
Name
Function
ESC
• Back to original page
Left
• Changing the active data, press ti
modify the left data bits, the modified
digit flashes
Right
• Changing the active data, press ti
modify the right data bits, the
modified digit flashes
Up
• Flip the screen to the previous page
• When setting the data, modify the bit
digit plus 1, increments range:
0 → 9 → 0
Down
• Flip the screen to the next page
• When setting the data, modify the bit
digit minus 1, decreasing range: 9 → 0
→ 9
Set
• Press to start modifying the value,
value area display with anti-color, the
modified bit digit flasches
• Null operation if not data setting in
current page
• Before press the [ENT] key, press [SET]
key, the current modify operation was
canceled and continue to modify the
next data
Enter
• Confirming a new value of a setting
parameter and continue to modify the
next value
• Exit from setting status when the final
parameter is set
Pulsanti OP320
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4. Ambient sensor replacement
