Lafayette Instrument ACUMAR User manual

Acumar Ruler Attachment
Accessory Ruler
Attachment
The Digital Inclinometer may be attached to the
ruler. Use for orthopedic, podiatric, chiropractic, x-
ray film evaluations.
Horizontal
Installation
Remove the battery cover of the Main unit. Replace with the battery cover that comes with the Ruler attachment. It
is held by a magnet to the ruler. Store the old battery cover. The Ruler attachment is snapped onto the Main unit in
the Horizontal position. It is held by the magnet, and positioned by plastic index pins which fit snuggly into the
lower 2 screw holes on the back of the case and on both sides of the case, just above the feet. (See picture) Be
certain the latch on the battery cover is snapped securely in place. Be certain that the Main unit is flat against the
ruler.
Hint: It may be easier to insert the index pins into the lower screw holes first, and then let the magnet swing the
ruler snug with the lower index pins against the top to the Main unit feet.
Vertical Ruler Orientation
The measurement axis may be rotated 90°,
electronically, to read angles with respect
to the vertical axis.
Vertical
The measurement axis may be rotated 90°, to read vertical as zero degrees by holding the Ruler close to vertical and
pressing ZERO for about 5 seconds until the readout switches to the vertical angle, for example, -70° goes to 20°.
Note: the Main unit remains mounted horizontal to the Ruler, the measurement axis is shifted electronically. In
order to switch back to horizontal as gravity reference, press START twice to turn the unit off and back on.

Left or Right Side Ruler Mounting
Optional Ruler Attachment
The Main unit may be mounted both
directions on the accessory attachment
pattern for your convenience.
Right and Left Side Ruler
The Ruler may be attached either on the Right Side or Left Side by flipping the ruler 180° as shown in the
illustration. This may be useful for taking readings on the opposite side of the body.
How to use ruler attachment for Extremity Measurements
The ruler attachment may be used to assist in measurements of the upper and lower extremities. It can be used as a
place to hold the inclinometer and for alignment. The Inclinometer inherently reads angles with respect to gravity,
so the orientation of inclinometer needs to be positioned to read angles respect to the gravity. The Inclinometer
may be zeroed by pressing the ZERO button while the subject is in the neutral position
X-Ray Film reading
Place the X-Ray film on the lighted box mounted on the wall. Place the ruler in line of reference position and then
press ZERO to initialize reference angle.
Then move the ruler to the second angle to be read and press HOLD. The difference angle will be stored and can be
viewed by pressing VIEW.
ACUMAR
By
Lafayette Instrument Company
3700 Sagamore Parkway North
Lafayette, IN 47904
Tel: [phone] FAX: [phone]
www.lafayetteinstrument.com
Copyright © 2006 Lafayette Instrument Co., All Rights Reserved.