User's Manual

239
When you insert an accessory into the Multiplanar Accessory Housing Joint, the height of the accessory
arm is recorded as the height of the accessory (from the platform), which is 7.25 inches higher than the
actual accessory arm.
If you place an accessory in the down position, the accessory will be an extra 14.5 inches lower than the
reading on the vertical ruler (twice the height of the accessory Multiplanar Accessory Housing Joint).
Therefore, when using accessories in the down position, you must add 14.5 inches to the vertical height
to achieve the desired test height.
For example, if you use the narrow handle in the down position to perform a static lift test, and your
protocol requires a starting height of 6”, you would set the vertical height of the accessory arm to 20.5’
(=6”+14.5”).
14.5 Inches
A
ccessor
y
in the UP
7.25
Inche
Upper Arm Ruler