Ness Security Products SecurityGuardII Owner's Manual page 10

R E E D S W I T C H D E T E C T I O N D E V I C E S
O P T I O N A L R E E D
S W I T C H O P E R A T I O N
Reed switches are able to detect the opening of doors and
windows by detecting the presence or absence of a magnet.
The Reed Switch is made up of two pieces; A magnet which
normally is placed on the moving part of a door or window and
the Reed which is housed inside the main unit.
Your Reed Switch is always active checking to see if the door
or window that it is installed on has opened. When the Reed
Switch senses an opening it transmits a coded Alarm message
back to Securityguard and Securityguard then determines
what it should do with the message i.e. It may choose to sound
an Alarm or sound a Chime depending on whether it is Armed,
Disarmed or in Home mode.
The Reed switch will transmit an Alarm message to tell
Securityguard when a door or window is opened and again
when it is closed.
R E E D S W I T C H E S
M I N I R E E D
Red Alarm Led
Magnet
Reed
Switch
separated
The Battery life of your Reed Switch is directly related to the number of times that it is opened and closed.
For the Shock Reed the Battery will last about 3 years if the Reed Switch is opened and closed approx 25000 times
or about 24 times a day and about 2 years if the Reed Switch is opened and closed about 35 times a day.
The Mini Reed battery will last about three years if it is activated twice a day. Unnecessary opening and closing
S H O C K R E E D
Red Alarm Led
Cover Clip
Magnet
Red Alarm Led activated
a window or door on which the Reed Switch is installed will diminish the battery life.
( O P T I O N A L )
RED ALARM LED
Illuminates for 5 seconds whenever an Alarm message is being
transmitted to the Securityguard
(An Alarm message is transmitted when the door or window is
opened and also closed again).
Flashes or will not illuminate when battery is low.
MAGNET
A small magnet housed inside a plastic case, normally
mounted on the moving part of a door or window.
REED SWITCH
The Reed and the main electronics are housed in the larger
plastics. The Reed senses the presence or absence of the
magnet and transmits an Alarm message accordingly.
The Shock Reed can also detect an attack on surfaces such as
windows, doors, walls etc by the addition of external shock
sensors.
LOW BATTERY
The red alarm led will not illuminate when the battery is low and
requires replacing. Securityguard will warn you when the
battery is low. Although the Reed Switch will still function when
the battery is low you should replace the battery as soon as
possible after a low battery warning.
The Reed Switches uses special Lithium batteries which
should give a battery life of between 2 an 3 years under
average usage. We recommend you only use a Lithium battery
as a replacement. The life of other types of batteries such as
Alkaline is several times less than a Lithium.
Shock Reed Ultralife U9VL or equivalent.
Mini Reed CR2032 Lithium.
COVER CLIP
This is used to open the cover of the Reed Switch to change the
battery. Lever upwards with your thumb or finger.
N O T E
10