Operation Manual

 Using your fingers, turn the Ring counter clockwise 5 degrees

until the tabs engage (Fig. 94), then tighten it 5 more degrees by

turning it counter clockwise with the aide of a small blade

screwdriver (Fig. 95).

 While tightening the Retaining Ring, exert continuous inward

pressure on it until it is secured in the proper position. A small

symbol located on the Ring should be aligned with the Locked

symbol located on the Housing (Fig. 95a).

Inspection

 Activate the unit and watch carefully as it performs a full diag-

nostic and battery check, and enters Surface Mode.

 Observe the LCD display to ensure it is consistently clear and

sharp in contrast throughout the screen.

WARNING: If any portions of the display are miss-

ing or appear dim, or a Low Battery condition is in-

dicated, return your XR2 to an Authorized AERIS

Dealer for a complete evaluation before attempting

to use it.

Fig. 94 -Engaging Retaining Ring

Fig. 95 -Retaining Ring Tightened