Rice Lake EL304A User Manual

EL-304A

Four-Channel Signal T rim Junction Box

Installation Manual

16937

Introduction

The EL-304A Junction Box can accommodate up to four load cells. Additional
load cells may be connected to the EL-304A Junction Box by wiring additional
junction boxes to the EXPANSION terminal on the EL-304A. Load cell output can
be trimmed with potentiometers either individually or paired in sections.

When correctly installed, the NEMA 4X fiberglass-reinforced polyester enclosure
will withstand 40 psi water pressure. It is not, however, designed for high­pressure washdown applications, exposure to steam, or exposure to high­temperature liquids.

CHANGING CABLE LENGTH

Locate the junction box so load
cell cable length need not be
changed. Load cell output is
temperature-compensated for the
supplied cable length. Altering
that length will alter the cell’s
signal output.

Mounting the Junction Box Enclosure

Mount the enclosure in a location convenient for servicing and away from
standing water. Try to mount the enclosure in a location that will not require
extending the load cell cables.

Depending on the mounting surface, the enclosure is attached using the four pan­head screws provided, bolts, or other suitable masonry fasteners. Figure 1 below
shows dimensions for mounting the enclosure.

9.88" (251mm)

7.625" (193.6mm)

5.625"
(142.8mm)

RICE LAKE WEIGHING SYSTEMS

6.62"
(168.1mm)

FIGURE 1: EL-304A ENCLOSURE DIMENSIONS

© 1996 Rice Lake Weighing Systems, Inc., Rice Lake, WI USA. All Rights Reserved
Rice Lake Weighing Systems, Inc., 230 West Coleman Street, Rice Lake, WI 54868
Main Office [phone] Service [phone] FAX [phone]

1

1.38" (35.1mm)

3.25"
(82.6mm)

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