P/N 144783999-
4 (ML) • REV E • ISS 11MAY18
5 / 40
Off: Provides
“Active low” logic to enable walk test and latch
inputs.
Preferred settings
To prevent anti-mask alarms during armed state (night mode),
the following settings are preferred:
•
Switch 1 on
•
Switch 3 off
•
Switch 4 off
•
Switch 5 off
With these settings the anti-mask alarms are signaled to the
control panel only during day by the trouble relay. The LEDs
are controlled by the latch and walk test input. Resetting of the
anti-masking alarm can only be done in walk test mode.
Never show the detector state to intruders via the LEDs.
LED indications are controlled by DIP switch 5.
•
If DIP switch 5 is On then the following indications are
shown at all times.
•
If DIP switch 5 is Off then the following indications are only
shown when the system is disarmed and the walk test line
is enabled.
Detector
status
Yellow
LED [1]
Red
LED [2]
Comment
= lit
= flashing
Power on
Blinks for 20 s
Alarm
—
For alarm period
— nominally 3 s
AM
—
Until anti-masking reset
PIR
Trouble
—
Flashes slowly until reset
AM Trouble
—
Flashes quickly until reset
Low
Battery
—
Always ON until correct voltage
restored
Latch
Alarm
—
Flashing until reset (not displayed
during Walk Test).
[1] See Figure 2, item 14.
[2] See Figure 2, item 15.
Reset condition
Detector status
Condition for reset
PIR Alarm
Normally after 3 s.
PIR Latched alarm
Next change from
“Disarm” to “Arm”.
AM (auto-reset)
Next successful PIR alarm after a 40 s inhibit
period.
AM (authorised
reset)
Next successful PIR alarm in
“Disarm” and “Walk
test
” mode.
PIR Trouble
Next successful PIR alarm.
Next successful automatic test (every 10 minutes
during
“Disarm”).
AM Trouble
Next successful anti masking detection.
Next successful automatic test (every 10 minutes
during
“Disarm”).
Selecting the coverage pattern
See Figures 10 and 11.
Change the coverage pattern to fit specific requirements by
using the mirror blinders as shown in Figure 10. It is
recommended to blind unused curtains, which might otherwise
be looking at walls or windows close to the detector.
For example: See Figure 11 for the mirror curtain coverage
pattern corresponding to curtain 2A and 2B, 7A and 9B
masked.
Caution:
Removing labels can damage the mirror surface!
Note:
The range of the detector can, under optimal conditions,
be up to 100% higher than stated.
Window masking
The window blinder is fitted off-factory to the inside of the
window of the detector, as shown in Figure 12. This blinder
prevents the detector looking directly at objects in close
proximity (within 1.5 m) and at those directly under the
detector. By partly masking the curtains in this way, the
detector will be more stable during normal use. When
undercrawl detection is required, the blinder should be
removed.
Specifications
Limited input power*
9 to 15 V
(12 V nom.)
Peak-to-peak ripple V, pp
2 V (at 12 V
)
Current consumption:
Normal operation
DD477AM(C), DD497AM(C): 13 mA nom.
DD478AM(C), DD498AM(C): 14 mA nom.
Alarm
DD477AM(C), DD497AM(C): 16 mA max.
DD478AM(C), DD498AM(C): 17 mA max
Mounting height
1.8 to 3.0 m
Target speed range
0.2 to 3.0 m/s
Microwave frequency
2400.0 to 2483.5 MHz
Maximum power output
14 dBm E.I.R.P.
Alarm output
80 mA at 30 V
max.
Tamper output
80 mA at 30 V
max.
Trouble output
80 mA at 30 V
max.
Alarm time
3.0 s
Temperature limit
−10 to +55°C
Relative humidity
max. 95%
Size
140 x 78 x 68 mm
Weight
205 g
Number of zones
DD477AM(C)/DD478AM(C): 9 at 16 m
DD497AM(C)/DD498AM(C): 7 at 20 m
Viewing angle
DD477AM(C)/DD478AM(C): 86°
DD497AM(C)/DD498AM(C): 60°
Housing complies (with
sealed cable entry)
IP30 IK02
Dual loop
DD477AM(C) and DD497AM(C) only
Usage restrictions
DD477AM, DD478AM, DD497AM,
DD498AM are not allowed to be used in
the UK
*
Product must be connected to a current-limited power supply
source of less than 8 A.
