Electrical Data And Options - ABB 2600T Series Operating Instruction

14.3 Electrical data and options

Power supply
The transmitter operates from 10.5 ... 42 V DC with no load
and is protected against reversed polarity (additional loads
enable operation above 42 V DC).
During use in Ex ia zones and in other intrinsically safe
applications, the power supply must not exceed 30 V DC.
Ripple
Max. 20 mV over a 250 Ω load in accordance with HART
specifications.
Load limitations
Total loop resistance at 4 ... 20 mA and HART:

Supply voltage Minimum

Ω
R k
( )
A minimum resistance of 250 Ω is required for HART
communication.
Displays (optional)
Integral LCD display (code L1)
Wide-screen LCD display, 128 x 64 pixels,
52.5 x 27.2 mm (2.06 x 1.07 in.) dot matrix. Multilingual.
Four keys for device configuration and management.
Easy setup for quick commissioning.
Customized visualizations which the user can select.
Total value and actual value flow indication.
The LCD display can also be used to show static pressure,
sensor temperature, and diagnostics messages, as well as
make configuration settings.
76 OI/266CXX/266JXX/HART-EN Rev. B | 266CRx, 266JRx, 266CSx, 266JSx
operating voltage ( VDC )
mA
22
Integral LCD display with TTG operation (code L5)
As with the integral LCD display above, but featuring an
innovative TTG (through-the-glass) keypad which can be used
to activate the device's configuration and management menus
without having to remove the transmitter housing cover.
The TTG keys are protected against accidental activation.
Fig. 49: Integrated LCD display with TTG operation
Output signal
Two-wire output, 266CXX:
4 ... 20 mA based on mass / standard volume flow or fill level,
full compensation of all pressure (P) and temperature (T)
effects.
Two-wire output, 266JXX:
4 ... 20 mA related to differential pressure, pressure, or
temperature
The HART communication provides the digital process
variables of differential pressure, absolute pressure, and
process temperature, which are superimposed on the
4 ... 20 mA signal (protocol according to Bell 202 FSK
standard).