ABB 266 HART Series, Operating Instruction

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2600T Series Pressure transmitters | OI/266/HART-EN Rev. D 37
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 instructions below.
Through The Glass (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.
Activation procedure for TTG (L5) and LCD (L1)
The HMI features 4 pushbuttons (see figure here above) that allow the navigation through the various functions.
– Press simultaneously the buttons (2) and (3) until two icons will appear at the bottom corners of the display.
– Press the button (4) under the right icon within one second. to access the HMI menu or press the left button (1) to access the
instantaneous diagnostic messages.
HMI menu structure
The HMI menu is divided in the following sections which can be selected by acting on the keys (2) and (3), once on the display the
desired sub-menu icon will be visualized, confirm your selection with the [SELECT] key (4)
Follow the instruction on the screen to perform the configuration of the different parameters.
This menu allows the verification and the parameterization of the basic
configuration of the 266 pressure transmitter. The menu driven structure will
guide you to the choice of the interface language, the tag number configuration,
the engineering units, the URV and LRV (Upper range value and lower range
value), the transfer function (linear or square root) the damping time, the auto set
zero (set the input measured value to 4 mA and the PV value to 0), the display
visualization mode (the value that need to be visualized on the LCD).
This menu allows the verification and the parameterization of the entire device
The menu driven structure includes the write protection enabling, process
variable settings (unit, LRV and URV), transfer function selection (linearization type
and low flow cut-off) and output scaling (unit according to the measurement and
LRV/URV). The last selectable sub-menu allows user to reset all the parameters
to the default configuration.
This menu allows the set-up of different functions relevant to the display itself.
The menu driven structure will guide you through the choice of some functional
aspects as the display language and contrast. Moreover, it is possible to
choose in details what you want to see on the display: one or two lines with or
without bargraph. Inside this menu there is the possibility of setting a
protection password (security) and the display scaling (linearization type, unit,
LRV, URV). Display revision number available.