Button (1) functionalities Meaning
Exit Exit menu
Back Back one submenu
Cancel
Exit without saving the selected parameter
value
Next
Select next position for entering numerical
values or letters
Button (4) functionalities Meaning
Select Select submenu/parameter
Edit Edit parameter
Ok
Save selected parameter and display
stored parameter value
Figure 43: Display keypad
10.3.3 HMI as feedback of the local push button
operations
As consequence of the operations described in the section 8.2,
when the Z or S buttons are released, the feedback of the
executed operation is displayed in the bottom of the LCD
(same position as per diagnostic messages):
Message Description
! Oper Done
The push button operation has been successfully executed
! Proc Too
Low
The Pressure measured in input is too low and not
acceptable for the requested operation
! Proc Too
High
The Pressure measured in input is too high and not
acceptable for the requested operation
! New URV
Error
The Zero (Z) operation cannot be accepted because the
URV would be shifted outside the Upper Sensor limit
! Span Error
The Span (S) operation cannot be accepted because the
new URV would be too close to the LRV and their
difference lower than the Minimum Span value
! Oper
Disabled
The push button operation has been refused because the
Write Protection is enabled with the hardware button or in
PB_WRITE_LOCKING or because the Local Operation is
disabled in the PB_LOCAL_OP_ENA
10.3.4 HMI as configuration tool
The HMI can be used to read and change the display
configuration through a dedicated menu accessible by using
the 4 HMI buttons. To access the functionality of the HMI an
activation procedure needs to be carried out.
LCD (L1 option) activation considerations
Gain access to the display by unscrewing the windowed cover.
Please observe the Hazardous area prescription before
proceeding with the cover removal. For activation, see following
instructions.
TTG (L5 option) activation considerations
The TTG technology allows the user to activate the keypad on
the HMI without the need of opening the windowed cover of
the transmitter. The capacitive pick-ups will detect the
presence of your finger in front of the respective button
activating the specific command.
At the transmitter power-on the HMI automatically calibrate its
sensitivity, it is mandatory for the proper functioning of the TTG
HMI that the cover is properly tightened at power-on.
In case the cover has been removed to access the
communication board, it is recommended to power off and
power-on again the transmitter once the windowed cover has
been set in place and properly tightened.
10.3.5 Activation procedure for TTG (L5) and LCD (L1)
1. Press the (2) and (3) keys together for 3 seconds until a
special symbol appears in the low left corner of the
display
2. Press the (4) key
3. The HMI enter in the configuration menus
The keys (1), (4), (2) and (3) are available for the
menu-controlled configuration.
4. The menu/submenu name is displayed above in the LCD
display.
5. The number/line of the currently selected menu item is
displayed in the upper right of the LCD display.
6. A scroll bar is located on the right edge of the LCD
display which shows the relative position of the currently
selected menu item within the menu.
7. Both of the keys (1) and (4) can have various functions.
The meaning of these buttons is displayed below in the
LCD display above the respective button.
8. You can browse through the menu or select a number
within a parameter value using both keys (2) and (3).
The button (4) selects the desired menu item.
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