AXIS T8331 PIR Motion Detector Series
Functions
The Pulse Count switch can be set in two different modes, 2 or TEST. Mode 2 is the default mode and is recommended to use.
TEST is only used when performing a walk test.
For position of the Pulse Count switch, see
Hardware Overview on page 8
Sensitivity Switch
The Sensitivity switch can be used to adjust the sensitivity of the detector. There are three different modes.
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M (Medium) This is the default position and can be used for normal applications.
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H (High) Use this when the application requires high sensitivity. When using AXIS T8331–E in Pet Alley Area mode, it is
recommended to set the sensitivity mode to H.
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L (Low) Use this in applications that may be unstable.
For position of the Sensitivity switch, see
Hardware Overview on page 8
Detection Area Adjustment
Below text applies to AXIS T8331–E only.
For AXIS T8331–E it is possible to set the detection area. There are two different modes.
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Multi-Level Area. This is the default mode and is applicable to normal applications.
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Pet Alley Area. This mode provides a horizontal detection pattern with no declination of zones, allowing pets to move
through the area.
Note
Ideal mounting height for Pet Alley Area is 1.2 m to 1.5 m.
See
AXIS T8331 PIR Motion Detector Series Graphs on page 9
for graphs of Multi-Level Area and Pet Alley Area.
See
Hardware Overview on page 8
for position of the Detection Area screw and the mirror.
See below for how to switch to Pet Alley Area mode.
1. Carefully loosen the adjustment screw.
2. Slide the cover down and fasten the screw at the P position.
3. Flip the mirror to the upper position.
VMD and PIR
AXIS Video Motion Detection (VMD) is an application for Axis camera products. VMD can be used together with the PIR sensor. The
application detects moving objects within a predefined area of interest, making it possible to automatically trigger an event.
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