Filter
Top Products
3 © MARMITEK
Considerations Before Installation
• Select a location from which the pattern of the detector is most likely to
be crossed by a burglar, should there be a break in.
• Do not place bulky objects in front
of the detector.
• Avoid a location which comes in
direct contact with radiators,
heating/cooling ducts, mirrors and
air conditioners.
• Select an appropriate installation
height from Table B1.
Pet Immunity Guidelines
It is expected that the MS845 will eliminate false alarms caused by:
• Animals up to 45kg (PI)
• Several small rodents
• Random flying birds.
The weight of the animal should only be used as a guide, other factors
such as the length and color of fur also affect the level of immunity.
For maximum pet immunity the following guidelines are recommended:
• Mount the center of the unit at a height of 2m with the PCB vertical setting
at -4.
• Set the pulse counter to 2.
• Do not aim the detector at stairways that can be climbed by an animal.
• Avoid a location where an animal can come within 1.8m of the detector
by climbing on furniture, boxes or other objects.
INSTALLATION PROCEDURE
To install PIR sensors:
1. Open the housing by removing the front cover. To do so, insert a
screwdriver in the release slot (located at the bottom of the detector
between the front and back cover). Turn the screwdriver 90º to release
the cover.
2. Remove the PCB by turning counter-clockwise and removing the Easy
Lock – do not touch the face of the pyro sensor!
3. Apply battery power by removing the isolator that separates the battery
from the contacts on the battery holder. (Note: Due to the occurrence
of voltage delay in lithium batteries that have been in storage, the
batteries may initially appear to be dead. In this case, leave the unit
in Test mode for a few minutes until the battery voltage level is
stabilized.)
Lens Mounting Height
Standard 2.2m (6.6’)
Long Range 2m (6.5’)
Curtain 1m (3.25’)
Animals
2m (6.5’)
Table B.1: Recommended Mounting Height