Aritech Mini 6920P Скачать руководство пользователя страница 4

Страница: 4 / 26

4 / 26

P/N 466-5590-

ML • REV E • ISS 26MAR21

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)

Tilt (°) Max. range (m)

Multibeam, optimum

Pet immunity [1]

1.5

−2

[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

Description

Orange

Microwave active

Red

PIR active

1+2

Red + Orange

Detection alarm

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

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

Coverage

14° to 70° detection angle,
15 m x 13 m coverage max.

Adjustment

90° pan, 45° tilt

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

LEDs

Orange: Microwave activated
Red: PIR activated
Red: Detector alarm

Operating frequency
(country specific)