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C&K DUAL Technology DT7550 Motion Sensor With Dual Temp
Compensation
K-Band Technology
Designed for high security commercial installations where masking is a
concern, the DUAL TEC® DT-7550C motion sensor combines DualCore™ signal processing
with MaskAlert™ anti-mask technology to ensure superior performance
Data Sheet PDF
Features
Superior Anti-Mask Protection
Through a combination of PIR and microwave signal processing, MaskAlert technology quickly
detects intentional and accidental masks or blocks. The sensor sends a trouble signal
whenever it encounters mask conditions. Power-up Anti-Mask detects mask conditions at
start-up to reduce sensor security breaches during installation, servicing, and power
outages.
Advanced DualCore Signal Processing
DualCore signal processing analyzes PIR and microwave signals through the DT-7550C’s
microcontroller. DualCore processing supports a multitude of advanced functions, including
Concurrent Diagnostics, Digital Fluorescent Light Interference Filter, Digital Adaptive
Microwave Threshold, Adaptive Baselines, and Bi-Directional Temperature Compensation.
Superb Detection Through K-Band Technology
K-Band microwave technology delivers sharp detection without holes or weak spots. The
custom-made source offers Pattern Shaping to fill the protected area with a broad,
balloon-shaped pattern which matches the PIR pattern. It also offers Pattern Containment
to reduce the penetration of microwave energy through walls.
Enhanced False Alarm Prevention Features
The DT-7550C offers more than the standard features that protect against false alarms due
to RF signals, electrostatic discharge, and electrical overstress. The patented black bug
guard improves white light immunity and digital adaptive microwave thresholds
automatically adjust for room disturbances.
Self-Testing
Self-testing is performed upon power up and at least once every hour on the PIR,
microwave, PCB circuitry and temperature compensation circuitry.
Sturdy, Attractive Housing
The sleek, sturdy housing fits into a variety of building styles and blend with any room
decor. ABS plastic is used for shock and impact protection. The housing offers a
convenient wiring channel, knockouts for mounting and wiring, and easy access to wiring
terminals.
Uniform Sensitivity Optics
The custom-designed Fresnel lens provides the same sensitivity for human targets at the
edge of the pattern as exists directly in front of the sensor, giving the DT-7550C
consistent coverage throughout the protected area.
Digital Adaptive Microwave Thresholds
The DT-7550C digitally adjusts its thresholds to account for room disturbances such as
ceiling fans and other repetitive moving objects which are not an intrusion event. The
result - excellent false alarm immunity even in "active" rooms.
Digital Fluorescent Light Interference Filter
Potential false alarms due to fluorescent lights are eliminated with a digital filter with
infinite rejection. Frequency of the filter is selectable between 60 Hz or 50 Hz via DIP
switch.
White Light Immunity
A patented black bug guard reduces false alarms by providing 6,500 lux of white light
immunity. This helps reduce false alarm problems caused by lights, flashlights or
reflective objects.
Concurrent Diagnostics
Optimum performance and reliability are assured through comprehensive diagnostics that
do not compromise detection during testing.
Bi-Directional Temperature Compensation
The DT-7550C operates effectively in harsh environments (14° to 131°F/-10° to
55°C). Bi-directional temperature compensation adjusts above and below body temperature
for improved detection and false alarm immunity.
Specifications
Range:
50’ x 60’ (15 m x 18 m)
Alarm Relay:
Energized Form C
125 mA, 25 VDC, 20 Ohm series resistor
Trouble Relay:
De-energized Form B
(NC) 125 mA, 25 VDC
Tamper:
(NC) 50 mA, 24 VDC
Power Requirements:
7.5 - 16 VDC (8.0 - 16 VDC for UL installations)
30 mA typ., 40 mA max. at 12 VDC
AC Ripple: 3 V peak-to-peak at 12 VDC nominal
Frequencies:
24.125 GHz (K-Band)
PIR White Light Immunity:
6,500 Lux typical
Fluorescent Light Filter:
50 Hz or 60 Hz, selectable
RFI Immunity:
30 V/m, 10 MHz - 1000 MHz
Operating Temperature:
14° to 131° F (-10° to 55° C)
5% - 95% relative humidity (non-condensing)
Self-Test Intervals:
Microwave Supervision Continuous PIR Self-Test Once every hour
Temp. Comp. Every 30 seconds
PIR Fields of View:
22 long range edges
12 intermediate edges
6 lower edges
4 look-down edges
Dimensions:
4.685" x 2.795" x 1.654"
(11.9 cm x 7.1 cm x 4.2 cm)
Sensitivity:
Standard: 3 - 4 steps
Intermediate: 2 - 3 steps
Detection Patterns
Click To Enlarge Picture
Accessories:
SMB-10 Swivel Mount Bracket
SMB-10T Swivel Mount Bracket w/Tamper
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