DT-557a DU AL TEC® Motion Sensor Product Information
Copyright 1999, C & K Systems, Inc. All rights reserved.
5-051-560-00 Rev A
Note: A rapidly blinking red LED indicates a self-test failure.
• A large or reflective object moving near the sensor may cause a
Solution
Remove any objects that may interfere with normal operation of the
sensor, or change the sensor location.
mask condition.
Problem
Sensor detects an invalid mask condition.
Possible Cause
detection pattern.
corner and swivel mounting.
• Installation Benefits: wiring channel, knockouts, and optional
Note: the DT-557a sensor should be tested at least once each year to
ensure proper operation.
Installation Troubleshooting
Use the following list for quick solutions to possible problems.
Problem
During the walk-test, a mask condition is present.
Possible Causes
• Sensor detected a mask detection during installation or adjustment.
• Sensor has not cleared a previously detected mask condition.
Solution
Step away from the sensor and walk several steps through the
• Alarm and Trouble Output Options: provides selection to send
trouble conditions to the alarm output in addition to the trouble
output.
• Single-Tech Performance: allows the unit to become a single
malfunctions.
walk-testing by suppressing the red LED.
technology alarm sensor in the event of a microwave or PIR failure.
mask the sensor when power is off.
intruder removes the sensors front cover.
Product Overview
The DT-557a sensor includes the following main features:
• Antimask: senses when an intruder attempts to mask the unit.
• Detection of Mask upon Power-Up: ensures an intruder cant
• Mechanical Tamper Switch: A tamper output is activated if an
• Self-Test Modes: continually performs internal diagnostics to detect
• Zone-Finder Walk-Test Mode: allows for ten minutes of advanced
DUAL TEC is a registered trademark of C & K Systems, Inc.
C & K is a registered trademark of C & K Components, Inc.
All other trademarks are the properties of their respective owners.
http://www.cksys.com
Swivel Mount Bracket SMB-10
Swivel Mount Bracket SMB-10T
DT-557a Side View
Wide Angle Lens
Sensitivity:
Normal 2 - 3 steps
Low 3 - 4 steps
Accessories:
4 Look-down edges
Dimensions:
11.9 cm H x 7.1 cm W x 4.2 cm D
(4.685" H x 2.795" W x 1.654" D)
Wall Mounted Wide Angle Lens with Typical Microwave
Pattern
-25
5 - 95% relative humidity (non-condensing)
PIR fields of view:
Standard Wide Angle Lens
22 long range edges
12 intermediate edges
6 lower edges
to +65
C (-13
Detection Patterns
DT-557a Top View
Jumper
Alarm only on alarm
output
Cut
Alarm, mask, and
trouble on alarm output
Uncut
PIR white light immunity:
8,000 Lux typical
RFI immunity:
30 V/m,10 MHz - 1000 MHz
Operating temperature:
o
o
Dip Switch and Jumper Settings
The following tables display the dip switch and jumper
1
2
Low sensitivity
LED disabled
settings.
Green
PIR
Yellow
Microwave
Off
Normal sensitivity
LED enabled
Microwave
PIR
On
Trouble relay:
De-energized Form B
(NC) 500mA, 30VDC
Tamper switch:
(NC) 50 mA, 24 VDC
Power requirements:
7.5 - 16 VDC
25 mA typical, 40mA maximum, 12 VDC
AC Ripple: 3V peak-to-peak at nominal 12VDC
Microwave Frequencies:
24.125 - 24.20 GHz
LED Indicators
The following table displays the LED indicators.
Red
Alarm Condition
(PIR and Microwave)
Zone Finder ModeNormal Operation Mode
Disabled
Product Specifications
Range:
11 m x 11 m (35' x 35')
Alarm relay:
Energized Form C
500 mA, 30 VDC
o
to +149
o
F)
Downloaded from: http://www.guardianalarms.net
¶
Select the mounting location.
·
Separate the sensor housings and remove
the Printed Circuit Board (PCB).
¸
Mount the unit.
· The sensor should meet the following objectives:
- Reach a mounting height of 2.3 m (76).
- Not directly face windows.
- Avoid close proximity to moving machinery
and heating/cooling sources.
- Not be mounted directly above a doorway.
(See Installation Troubleshooting for more
information.)
¹
Wire the unit.
Red
Motion Sensor Installation Instructions
®
Black
Orange
Yellow
Brown
White
White
Terminal
Terminal
V+
V-
NC
C
NO
T
T
TBL
TBL
DT-557a DUAL TEC
· Connect the panel wires to the sensor wires
according to the table.
Note: Use 1.02 mm - 0.64 mm (18 to 22 gauge)
wire.
· Use a small screwdriver to unfasten the housing
latch.
· Gently pull apart the housings.
· Push outward on the PCB latch and lift the PCB
out of the housing.
ºa
Walk-test the sensor.
· Apply power to the unit.
· Initialization and mask detection are complete
when the LED stops flashing.
· Adjust the microwave range to minimum setting by
turning the range adjustment counterclockwise
using a small screwdriver.
· Replace the front housing.
· Begin walking through the detection area.
- The LED will turn red, indicating an alarm
detection.
· Increase the microwave range as necessary.
· Repeat the items in step 5a until proper detection
range is obtained.
Wall Mount
Wire Channel
· Mount the back housing flat against a wall or in a
corner. (For optional swivel mounting, use the
C & K SMB-10 or SMB-10T.)
· Replace the PCB.
ºb
Walk-test the sensor using Zone Finder
Corner
Mount
(Optional).
· After following the first three items in Step 5a, use
a screw driver to short the test pads.
· Replace the front housing and begin walking
through the detection area after the red LED
stops blinking.
- When the LED turns green, indicating a PIR
detection, stop walking.
- When the LED turns yellow, a microwave event
has been detected.
· Increase the microwave range as necessary.
· Repeat the items in step 5b until proper detection
range is obtained.
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