704-5010-130 Datasheet, PDF (14/36 Pages) Magnetrol International, Inc. – GuidedWave Radar Level Transmitter

Power Supply
24 VDC
Test Current
Meter
Model 704
Enter
Down
Up
11
2.6 Configuring the Model 704 Transmitter
The Horizon Model 704 transmitter comes configured
from the factory but can easily be reconfigured in the shop
(an error message may be displayed due to unattached
probe). Bench configuration provides a convenient and
efficient way to set up the transmitter before going to the
tank site to complete the installation.
Before configuring the Model 704 transmitter, collect the
operating parameters information (refer to Section 1.1.2).
Apply power to the transmitter on the bench and follow
through the step-by-step procedures for the menu-driven
transmitter display. Information on configuring the trans-
mitter using a HART communicator is in Configuration
Using HART, Section 2.7.
2.6.1 Operating Parameters
Some key information is needed to calibrate the Horizon
transmitter. Complete the configuration information table
in Configuration Information, Section 1.1.2.
2.6.2 Setting Up for Bench Configuration
The Horizon Model 704 transmitter can be configured at
a test bench by connecting a 24 VDC power supply directly
to the transmitter terminals as shown in the accompanying
diagram. An optional digital multimeter is shown if current
measurements are desired.
1. When using a HART communicator for configuration, a
minimum 250 Ω line load resistance is required. See the
HART communicator manual for more information.
2. The transmitter can be configured without the probe.
Disregard the error message due to the unattached probe
(the Horizon transmitter may not show an error and indi-
cate a LEVEL value > 0 when disconnected from probe).
3. After entering the last value, allow 5 seconds before remov-
ing power from the transmitter. This allows the transmitter
to store values.
2.6.3 Transmitter Display and Keypad
The Horizon Model 704 transmitter has an optional liquid
crystal display (LCD) capable of showing two lines of
8 characters each. Transmitter measurements and configu-
ration menu screens are shown on the LCD.
The transmitter default display is the measurement screen.
It cycles every 5 seconds to display LEVEL, %OUTPUT,
and LOOP information. The transmitter defaults to this
display after 5 minutes elapses with no keystrokes.
57-603 Horizon Guided Wave Radar Transmitter