2: Anti Masking Sensitivity:
"
ON
" selects a
higher level of Anti Masking
sensitivity.
"
OFF
" selects the
standard Anti Masking
sensitivity.
3: Resetting the "Trouble output":
"
ON
" resets the
Trouble output
after alarm.
"
OFF
" resets the
Trouble output
only when authorized.
4: How to signal "Trouble output":
"
ON
" signals
the Anti Mask signals
on
both
the TROUBLE and
ALARM relay.
signals
the Technical Fault
to TROUBLE relay only.
"
OFF
" signals
the Anti Mask
and Technical Fault on the ETO.
5: LED indication:
"
ON
" enables
both LED's
on the detector at all time.
"
OFF
" puts
both LED's under the control
of the Walk test and
Latch input when the system is disarmed.
6: Control voltage (CV) polarity (Fig.
s)
“On” provides the standard Aritech logic with active high logic
to enable Walk Test and Latch inputs.
“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 con-
trol 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
LED’s .
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 Yellow Red Comment
= lit
status LED LED = flashing
Power on
Blinks for 20 sec.
Alarm ---- For alarm period - nominally 3
sec.
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).
Reset condition
Detector status Condition for reset
PIR Alarm Normally after 3 sec.
PIR Latched alarm Next change from "Disarm" to "Arm".
AM (auto - reset) Next successful PIR alarm after a 40 sec.
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 (Fig. )-c)
Change the coverage pattern to fit specific requirements by using
the mirror blinders as shown (Fig.
c). It is recommended to blind
unused curtains, which might otherwise be looking at walls or
windows close to the detector.
For example:
See Fig. b for the mirror curtain coverage pattern corresponding
to curtain 2A and 2B, 7A and 9B masked.
Removing label(s) can damage the mirror surface!
Note: The range of the detector can, under optimal conditions,
be up to 100% higher than stated.
Window masking (Fig. d)
The window blinder is fitted off-factory to the inside of the window
of the detector, as shown in Fig.
d. 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.
Technical Data (DD477AMC / DD478AMC / DD497AMC /
DD498AMC)
Limited input power - 9-15 VDC (12 V nom.) max. 8 A fuse
source
Peak-to-peak ripple 2 V (at 12 VDC)
Current consumption DD477AMC DD497AMC
Normal operation 13 mA nom. 13 mA nom.
Alarm 16 mA max. 16 mA max.
Current consumption DD478AMC DD498AMC
Normal operation 14 mA nom. 14 mA nom.
Alarm 17 mA max. 17 mA max.
Mounting height min 1.8-max. 3.0 m
Target speed range min 0.1-max. 4.0 m/s
Microwave frequency 2450 MHz
Maximum microwave
output power at 1.0 m Enable: 0.005 µW/cm
2
(Continously) Disable: 0 µW/cm
2
Alarm output 80 mA at 30 VDC max.
Tamper output 80 mA at 30 VDC max.
Trouble Output 80 mA at 30 VDC max.
Alarm time 3.0 sec.
Temperature limit -10 °C to +55 °C
Relative humidity max. 95%
Size 140 x 78 x 68 mm
Weight 205 g
Number of zones DD477AMC/DD478AMC DD497AMC/DD498AMC
9 at 16 m 7 at 20 m
Viewing angle DD477AMC/DD478AMC DD497AMC/DD498AMC
86° 60°
Housing complies
(with sealed cable entry) IP30 IK02
Dual loop DD477AMC & DD497AMC only
- 4 -
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