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17
4.
Radio Keys
Your Sigma security system’s Radio Keys (Part number SIGAC111) are small radio
transmitters operating on the approved frequency of 433.92 MHz. Although
extremely robust you must take care of these remote keys to prolong their working
life.
•
If you lose or damage a Radio Key, replace it immediately.
•
If you need more than two Radio Keys for your security system, your installing
dealer can supply a third or fourth key (a maximum 4 to preserve security).
•
The Radio Keys are battery powered and although the batteries are long life
lithium cells, it is recommended that these are changed regularly. Your
installing dealer will be pleased to supply these for you.
Replacing the Battery in a Radio Key
Eventually the lithium battery cell (model number CR2016) will need replacing.
Battery life will depend on use, however, to maintain optimum performance of the
Radio Key it is good practice to replace the lithium battery cell regularly.
There is one cell in each Radio Key. A symptom of low battery power is reduced
operating range from the vehicle. Replacement battery cells should be available from
your installing dealer.
Locate the recess near the keyring and using a small
coin or flat blade; gently prise apart the two halves of
the Radio Key casing.
Note the orientation of the old battery and slide it out
from beneath the spring contact, taking care not to
damage it. Carefully slide the new battery beneath
the spring contact ensuring that the + sign, which is
stamped on one face of the battery, is facing upward
as shown in the photograph. Place the circuit board
within the rubber insert and then clip both halves of
the Radio Key casing back together.
CAUTION:
Lithium battery cells should not be exposed to temperatures exceeding 60°C
(140°F) & may explode or leak if recharged, incinerated or short-circuited. You
must dispose of depleted lithium batteries carefully. Your local authority will
advise you of the correct disposal method in your area.
Teaching New Radio Keys to the Security
System
Radio Keys can be programmed into the
security system using the Ignition PIN
Procedure or optional Keypad. Refer to pages
19-23 of this manual for details.
Summary of Contents for S Series
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