User's Manual

SYSTEM OPERATION
MASTER UNLOCK PROCEDURE
If you need to simultaneously unlock numerous carts located near the perimeter boundary,
the CentralTransmitter features a master unlock mode to enable unlocking and cart retrieval
without the use of a CartKey. When activated, this feature will stay in effect for thirty (30)
seconds. After thirty-seconds has passed, normal operation will resume.
This feature requires at least two employees, one on the outer perimeter, and one at the
CentralTransmitter. Once the needed personnel are in place, initiate the master unlock mode
by depressing the silver button located on the front of the CentralTransmitter panel. All carts in
the vicinity of the perimeter antenna will receive an unlock signal and can be retrieved within
thirty-seconds. While this is a convenient option, it does present a period during which carts
are unprotected. Please remember that the added convenience presents added exposure.
CHANGING CARTKEY BATTERY
CartKey batteries will need to be replaced from time to time during the life of the system. If you are
having difficulty unlocking or locking the Gatekeeper wheel you may need to replace the battery.
In order to replace your CartKey battery, perform the following steps. You will need a replacement
CR123A 3V lithium battery. These are standard lithium batteries like the kind used in most digital
cameras. You will also need a coin in order to open the battery cover (a quarter works best).
STEPS
1. Turn the CartKey over so you are looking at the side opposite the front panel. You will see a circular cover with a slot.
Place the CartKey on a flat surface.
2. Insert your coin into the slot and turn counterclockwise until the battery cover pops up.
3. Remove the battery cover and set aside.
4. Inside the CartKey, you will see a nylon strap holding the battery in place. Pull up on the nylon strap until the battery pops out.
5. Insert the new battery so it lies on top of the nylon strap (this will ensure easy removal the next time you need to change the battery).
Make sure to align the “+” and “—” connectors on the battery with the “+” and “—” indicators inside the CartKey. Insert the “—” end
first and then push down on the battery until it snaps into place.
6. Once the new battery is in place, fold the remaining end of the nylon strap back over the battery.
7. Take the battery cover and place it back on the CartKey, making sure to line up the notches on the battery cover with the
notches on the CartKey opening. Push down on the battery cover until it is level with the surface of the CartKey. Turn the
battery cover clockwise.
8. Insert your coin into the slot and turn clockwise until the battery cover clicks into place.
CartControl User Manual 07