1
1. Introduction
The RL8025 is a bolt-on strain gage load sensor ideal for processing or inventory
control in both indoor and outdoor applications. It is designed to detect changes in
structure and is designed specifically to work with skirted tanks where legs are either
inaccessible or non-existent. It is also compatible with standard legged tanks or silos
and turns most any unit into a full weighing apparatus by measuring the contents by
either percent or capacity. The RL8025 can create a signal proportional to the load
from the stress detected in the main support members of tanks or silos. That signal
can then be used to interface with standard weighing indicators such as Rice Lake
Weighing Systems’ 920i programmable weight indicator.
Backed with testing results from –40
°
to 180
°
F, the RL8025 is used in groups of
six equally spaced units across the body of a skirted tank (as shown in Figure 1 on
page 2), or on each leg of a structure (as shown in Figure 2 on page 3). The RL8025
is available in either alloy steel or optional stainless. It should be noted that the
RL8025 sensor can be used on a wide range of capacity vessels, but care needs to
be used when handling them as they are a sensitive device.
The advantages to using the RL8025 include:
•
Low cost. No lifting of tanks or vessels to install load cells under legs, and
less down time while installing the sensors.
•
Durable design. Load sensors are off the ground and out of harms way.
Also no risk of damaged sensors caused by falling objects.
•
Easy bolt-on weighing. Sensors bolt onto the tank’s legs or skirted portion
of the silo. You can calibrate to desired units of measurement (level,
percent full or empty).
•
Environmentally sealed. Durable design for indoor or outdoor use.
Authorized distributors and their employees can
view or download this manual from the Rice Lake
Weighing Systems distributor site at www.rlws.com.
The installation should be planned by a qualified structural
engineer. Each installation is unique, and this manual is meant
to serve only as a general guideline for installation.
Caution