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MAN - BBR2S - REV: Original | C. System Overview
Operating Temperature
Ambient to -40°C
Recommended Tools
The following tools are recommended for use during installation and operation of the BBR2S.
Installation
• 9/16” Open-Ended Wrench
• Set of Hexagonal Wrenches
• Flat Bladed Screw Driver
Operation
•
Metal Tongs for the placement and removal of the specimen from the fluid bath.
• Protective eye wear and gloves for use during testing.
Environmental Conditions
The BBR2S is designed for use in an industry/laboratory setting in an indoor and dry environment. The Base Unit
should be placed on a clean, stable work surface with the connecting mechanical refrigeration unit nearby. The
mechanical refrigeration unit should be placed 6 in. above the floor and in an area that will not constitute a tripping
hazard.
Load Frame
The load frame is an independent three-point loading device designed to apply a load of up to 1960 mN. The
load frame may be operated in the supplied fluid bath, or it may be used in ambient conditions. It features rigid
construction and a space saving design, as well as durable, corrosion resistance.
Each load frame is constructed from stainless steel plates and durable high-strength PVC uprights that are
designed to be dimensionally stable and provide accurate force control. The load frame consists of an integral, free-
floating loading shaft within an air bearing to permit specimen loads in the range of 0 to 1960 mN. The air bearing
also provides reliable and rapid loading with an accuracy of ± 5 mN.
The load frame is constructed with a horizontal shelf that extends across the top of the base unit to provide supports
to suspend the lower portion of the load frame in the fluid bath. The upper part of the load frame is covered by an
access panel that permits the user to easily view the top of the loading shaft. This panel also provides access to
the weight pan for easy calibration of the load cell and the Linear Variable Differential Transformer (LVDT). Two low
voltage, sealed lamps are mounted in the base of the load frame in order to illuminate the specimen in the fluid bath.
The load frame is made up of an LVDT shaft, weight pan, air bearing, load shaft, load cell, and adapter. A hard,
plastic shroud is mounted to the load frame and serves to protect the load cell from splashing fluid and minimize the
affect of fluid movement on the load nose.