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SECTION
LCD METER FOR SMART TRANSMITTERS
The LCD meter provides local indication of the output, and abbreviated diagnostic
messages governing transmitter operation. The meter is located on the electronics
module side of the transmitter, maintaining direct access to the signal terminals. An
extended cover is required to accommodate the LCD Meter for Smart Transmitters.
The LCD Meter can be ordered with the transmitter or added at a later time.
The new meter features a two-line display that accommodates five digits for
reporting the process variable on the top line, and six characters for displaying
engineering units on the bottom line. The meter uses both lines to display
diagnostic messages. You can configure the meter to display the following
information:
Engineering Units
Percent of Range
User-Configurable LCD Scale
Alternating between any two of the above
The user-configurable scale is a new feature that enables you to configure the LCD
meter to a custom scale using a Model HC275 HART Communicator. With the user
configurable scale feature, you can define the decimal point position, the upper range
value, the lower range value, the engineering units, and the transfer function.
Use a HART-based communicator to change the engineering units displayed by the
meter. Select from the following engineering units:
Engineering Unit
inH2O @20DegC
mmH2O @20DegC
ft H2O
inHg
mmHg
psi
bar
mbar
Note the following LCD temperature limits:
Operating: –4 to 175 °F (–20 to 80 °C)
Storage: –40 to 185 °F (–40 to 85 °C)
LCD Meter
7
LCD Readout
INH2O
MMH20
FTH2O
INHG
MMHG
PSI
BAR
MBAR
Engineering Unit
g/Sqcm
kg/Sqcm
Pa
kPa
torr
atm
inH2O @4DegC
mmH2O @4DegC
7-1
LCD Readout
G/CM2
KG/CM2
PA
KPA
TORR
ATM
INH2O
MMH2O
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