Considerations Before Installation |
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• | 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. |
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| Do not place bulky objects in front |
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• | Lens | Mounting Height | ||
| of the detector. | Standard | 2.2m (6.6’) | |
• | Avoid a location which comes in | Long Range | 2m | (6.5’) |
| direct contact with radiators, | Curtain | 1m | (3.25’) |
| heating/cooling ducts, mirrors and | Animals | 2m | (6.5’) |
| air conditioners. |
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• | Select an appropriate installation | Table B.1: Recommended Mounting Height | ||
| height from Table B1. |
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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
•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
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.)
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