Idiomas disponibles
Idiomas disponibles
Multibeam alignment and masking
The multifunction lens fitted to the Mini 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 microwave module detects
actual movement towards or away from the detector and is
programmed to ignore any objects that move outside of the
range.
The detector module is fitted with two sliding shutters to reduce
the detection angle of the PIR sensor only.
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 2 below summarizes typical alignment and masking
configurations.
Table 2: Beam alignment & masking configuration
Configuration
Height (m)
Multibeam, optimum
3
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.
LEDs
LEDs are shown on Figure 10.
Figure 10
Item
Colour
1
Orange
2
Red
1+2
Red + Orange
Selectable options
Figure 11 shows the DIL switch position (1).
Pulse count
Pulse count is the number of times the detector must detect
a presence before signalling an alarm.
Switch 2 OFF = Pulse count 2
4 / 26
Tilt (°)
Max. range (m)
5
15
−2
15
Description
Microwave active
PIR active
Detection alarm
Switch 2 ON = Pulse count 1 (most sensitive)
Detection LED
Switch 1 ON = Both LEDs Enabled
Switch 1 OFF = Both LEDs Disabled
Walk test & settling time
Allow 3 minutes for the electronics to settle when power is
applied before commencing the walk test.
To enable the LEDs to carry out a walk test turn Switch 1 to
ON.
The detection LEDs will individually light each time the PIR or
microwave sensor is activated and will both light when both
PIR and microwave circuits are active; thus confirming an
alarm detection.
After walk test is complete turn Switch 1 to OFF if the LED
indication is not required.
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
Double silicon shielded quad element
Customised optics
eliminates 50,000 Lux of white light
LEDs
Orange: Microwave activated
Red: PIR activated
Orange + Red: Detector alarm
Operating frequency
6920P: 10.525 GHz
(country specific)
6921P: 10.587 GHz
Radar frequency band
8 500 MHz-10 600 MHz
Maximum power
27 dBm E.I.R.P.
output
Outputs
Silent, solid state, magnetically immune
NC
Volt free relay, signal contact 24 VAC/DC at
50 mA with an integral 25 Ω series resistor.
Alarm time 5 seconds
Power input
9 to 15 VDC
Current
8 mA (12 V nominal)
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. Option
to disable LEDs
−30° to +65°C
Operating temperature
P/N 466-5590-ML • REV E • ISS 26MAR21
