Interlogix TX-2821-03-4 Hoja De Instalación página 4

Battery safety information
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Do not put in a fire
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Do not heat
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Do not charge
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Do not short circuit
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Do not disassemble
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Only fit batteries of the same type and voltage
To preserve battery life the detector has a 2-minute sleep timer
after a detection. This is reduced to 5 seconds during walk test.
Multibeam alignment and masking
The multifunction lens fitted to the TX-2821-03-4 wireless
detector produces five long-range beams and five medium- to
short-range curtain PIR beams. The PIR circuitry detects
changes in heat and movement in the beam pattern; therefore
items such as trees, shrubs, ponds, boiler flues, and animals
should be considered when positioning the detector.
The detector module is fitted with two sliding shutters to reduce
the detection angle.
The curtains are fitted to the pan and tilt module as shown in
Figure 7. Each section of the detector lens gives a coverage
pattern of approximately 14 degrees.
When coverage exceeds the desired detection area, adjust the
module as required and mask off any beams, either vertically
or horizontally, to avoid unwanted detection.
Use portions of the self-adhesive silver mask applied to the
rear, smooth side of the lens. As an example for pet alley
masking refer to Figure 8. To replace the lens, begin by sliding
one side of the lens into the clips on the pan and tilt module.
After one side is secure, do the same for the opposite side
ensuring the lens is the correct orientation with the smooth side
facing in and the two rows of circles to the bottom.
Always replace the lens the correct way up to ensure exact
beam pattern coverage as shown in Figure 8.
Table 1 below summarizes typical alignment and masking
configurations.
Table 1: Beam alignment & masking configuration
Configuration Height (m)
Multibeam, 3
optimum
Pet immunity [1] 1.5
[1] Black area should be masked for pet alley applications up to 15
meters.
Figure 9 shows the pattern for the maximum range in the
optimum position and the top view of the beam pattern.
Selectable options
Figure 6, item 1 shows the Pulse Count selection jumper
positions.
Pulse count
Pulse count is the number of times the detector must detect a
presence before signalling an alarm. Pulse count 1 is the most
sensitive.
4 / 24
Tilt (°)
Max. range (m)
5 15
−2
15
Programming control panels
For outdoor applications it is recommended to use the wireless
detector as a pre-alarm device. Refer to the specific control
panel manuals for details on programming.
Walk test & settling time
Allow 3 minutes for the electronics to settle when power is
applied before commencing the walk test.
The walk test mode starts as soon as either or both tamper
switches are opened. In walk test mode the red LED (figure 10)
is activated. Walk test mode remains active until both tamper
switches are closed i.e. the detector is securely mounted to the
wall and the cover is closed. When both switches have been
closed a 5 minute time will start. After 5 minutes of both
switches being closed, the walk test will finish irrespective of
any detections. Opening either of the tamper switches at any
time will reset the 5 minute count timer.
Whilst the TX-2821-03-4 is in walk test mode the red detection
LED will light each time the wireless detector detects your
presence.
Note: When you conduct a walk test, make sure that the front
cover is in place. Do not conduct walk tests with the cover
removed.
The range of the detector increases without the protective front
cover. Therefore the front cover must be fitted to establish the
correct beam pattern. Pan and tilt the lens module over the
field of view to obtain the correct coverage area.
Specifications
14° to 70° detection angle,
Coverage
15 m x 13 m coverage max.
90° pan, 45° tilt
Adjustment
Fresnel lens 20 zones for each detection element, which
can be masked with the curtain sliders
Customised optics Double silicon shielded quad element
eliminates 50,000 Lux of white light
LED Red: Walk test indicator
Batteries 2x 3 V CR123 (up to 3 years)*
3x 3 V CR123 (up to 5 years)*
50 μA
Current
Frequency band 868.000 MHz - 868.600 MHz
Operating frequency 868.300 MHz
Maximum power 14 dBm E.R.P.
output
Pulse count 1 or 2
Temperature Analogue (thermistor) and digital sensitivity
compensation adjustment
Control Digital microprocessor with non-volatile
memory
Walk test Output test mode with LED indication.
−25° to +65°C
Operating temperature
Housing High impact ABS plastic with HDPE cover,
UV stabilised
Dimensions W x H x D 70 mm x 120 mm x 95 mm
Weight 218 g Net, 351 g Gross
• REV D • ISS 21MAR19