41
58-610 Model R82 Radar Transmitter
2.7
Configuration Using HART
®
A HART
®
(Highway Addressable Remote Transducer)
remote unit, such as a HART communicator, can be used to
provide a communication link to the Model R82 transmit-
ter. 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.
To confirm HART hand-held communications, attach unit
per Section 2.7.1. If communicator reads
GENERIC
on
first two lines, the HART hand-held does not contain the
current DDs (device description) for the Model R82 Radar
transmitter. Contact your local HART Service Center and
specify a MAGNETROL Model R82 device descriptor.
See HART Revision Table, Section 2.7.3.
2.7.1 Connections
A HART communicator can be operated from a remote
location by connecting it to a remote junction or by con-
necting it directly to the terminal block in the electronics
housing of the ModelR82 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 250
Ω
load resistance. A typical connec-
tion between a communicator and the Model R82 transmit-
ter is illustrated.
2.7.2 Display Menu
A typical communicator display is an 8-line by 21-character
LCD. When connected, the top line of each menu displays
the model (Model R82) and its tag number or address.
Usually the bottom line of each menu is reserved for soft-
ware-defined function keys (F1–F4). For detailed operating
information, refer to the instruction manual provided with
the HART communicator.
The Model R82 transmitter online menu trees are shown in
the following illustration. Open the menu by pressing the
alphanumeric key 1, Device Setup, to display the second-
level menu.
+
-
Junction
R
L
> 250
Ω
Control
Room
Display
Power
Supply
Current
Meter
HART Version
HCF Release Date
Compatible with R82 Software
Dev V2, DD V2
April 2009
Version 1.0a-1.1a
Dev V3, DD V1
December 2010
Version 2.0a and later
2.7.3 Model R82 HART Revision Table
Figure 28
HART Configuration