User's Manual

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Once the Multiplanar Accessory Housing Joint is attached to either of the ER arms, any of the standard
accessories can be attached to it. When facing the ER Stand, with the Multiplanar Accessory Housing
Joint inserted, there will be two handles on the right hand side of Multiplanar Accessory Housing Joint.
Attaching and removing the ER Accessories
The figure below is of the Multiplanar Accessory Housing Joint, when viewed from the top. The front of
the Multiplanar Accessory Housing Joint can be identified by a cord, which exits near the hinge of the
joint. This cord attaches to the ER Data Acquisition Box, to register test results obtained when using the
load cell.
Inserting an accessory into the Multiplanar Accessory Housing Joint
Locate the top handle on the right side of the Multiplanar Accessory Housing Joint. The right side refers
to the side of the stand when viewing it from the front (i.e. the viewer’s right side).
Give the handle an approximately ¼ turn in a counterclockwise direction. This will loosen the Multiplanar
Accessory Housing Joint attachment mechanism.
The handle on top is used when attaching and removing the various
accessories.
The handle on the bottom is used when rotating the Multiplanar Accessory
Housing Joint in a vertical plane, perpendicular to the floor. The function of this
handle will be discussed later.
When using the short black handle at the end of the accessory arms, ensure that the
handle is not overturned in a counterclockwise direction. Overturning will cause the
handle to unscrew and fall off the accessory arm. When turning the handle in the
counterclockwise direction to unlock it, only a ¼ turn is necessary.