25
48-635 E3 Modulevel
®
Displacer Level Transmitter
2.7
Configuration Using HART
Since E3 transmitter supports the HART (Highway
Addressable Remote Transducer) communication protocol,
configuration tools, such as a HART 375/475 handheld
communicator, can be used to provide a communication
link to the E3 transmitter. When connected to the control
loop, the same system measurement readings shown on the
transmitter are shown on the communicator. In addition,
the communicator can be used to configure the transmitter.
The HART communicator may need to be updated to
include the E3 software (Device Description). Contact your
local HART Service Center for additional information.
2.7.1 Connections
A HART communicator can be operated from a remote
location by connecting to a remote junction or by connect-
ing directly to the terminal block in the electronics housing
of the E3 MODULEVEL transmitter.
HART uses the Bell 202 frequency shift key technique of
high-frequency digital signals. It operates on the 4–20 mA
loop and requires a minimum of 250
Ω
load resistance. A
typical connection between a communicator and the
E3 MODULEVEL transmitter is illustrated.
2.7.2 HART Display Menu
For detailed operating information for the 375/475 Field
Communicator, refer to the instruction manual provided
with it.
The E3 transmitter online menu tree is shown in the fol-
lowing illustration. Open the menu by pressing the
alphanumeric key 0, Device Setup, to display the second-
level menu.
2.7.3 HART Revision Table
+
+
-
-
Junction
R
L
> 250
Ω
Control
Room
Display
Power
Supply
Current
Meter
HART Version
HCF Release Date
Compatible with E3 Software
Dev V1, DD V1
December 2007
Version 1.0A through 1.0D
Dev V2, DD V1
September 2011
Version 1.1A and later
Figure 13
Typical HART Connection
