Set the depth of the needle to the desired location prior to injection. The adjustment of the needle guard modifies the depth that the needle guard will travel into the device and thus how far the needle will protrude beyond the guard and into the skin when the device is activated.
Cleaning/ Changing the Needle Guard:
To adjust the needle guard, first loosen the knob on the underside of the needle guard by turning clockwise. When adjusting the needle guard, do not unscrew or remove the knob completely, simply loosen it allowing the needle guard slightly in or out of the device, allowing you to adjust the depth of the needle will penetrate the skin with each injection.
A clean needle guard must be used for each patient. To remove the needle guard from the device, completely unscrew the knob on the underside of the needle guard (by turning clockwise). With the screw removed from the device, pull the needle guard from the device. Install a clean needle guard for each patient.