SECTION
7-1
EN
7
LCD Meter
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:
n
Engineering Units
n
Percent of Range
n
User-Configurable LCD Scale
n
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:
Note the following LCD temperature limits:
Operating:
–4 to 175 °F (–20 to 80 °C)
Storage:
–40 to 185 °F (–40 to 85 °C)
Engineering Unit
LCD Readout
Engineering Unit
LCD Readout
inH2O @20DegC INH2O g/Sqcm G/CM2
mmH2O @20DegC MMH20 kg/Sqcm KG/CM2
ft H2O FTH2O Pa PA
inHg INHG kPa KPA
mmHg MMHG torr TORR
psi PSI atm ATM
bar BAR inH2O @4DegC INH2O
mbar MBAR mmH2O @4DegC MMH2O
4690.bk : 4690.s7 Page 1 Tuesday, May 26, 1998 5:28 PM
