DUAL TEC® GLOSSARY Environmental Adaption
Microwave thresholds are adapted either in hardware or digitally to remove the effect of low level interference such as ceiling fans.
Temperature Compensation
Sensor automatically adjusts PIR thresholds and/or other parameters to adapt to change in ambient temperature relative to human body temperature.
• Standard: Compensates at ambient temperatures below body temperature
• Advanced: Compensates at ambient temperatures both below and above body temperature
Digital Fluorescent Light Filter
Software algorithms provide infinite rejection of microwave interference due to fluorescent lights.
Analog Fluorescent Light Filter
Hardware circuitry provides rejection of microwave interferences due to fluorescent lights.
Anti-Masking
Detects intentional and accidental blocking of the PIR optics.
Walk Test Mode
Determines the coverage pattern and functionality for both the PIR and microwave channels, usually through LED indicators.
PIR Sensitivity Adjustment
Selectable option to change the PIR process sensitivity, usually through a DIP switch or jumper link.
Microwave Sensitivity Adjustment
Selectable option to change the microwave sensitivity and/or range, usually through a potentiometer.
• Form C: Three-terminal relay with both Normally Closed and Normally Open outputs when energized
LED Indicators
Light Emitting Diodes used to provide visual feedback about alarm state, supervision, walk test and other modes of operation.
• 1 LED: Single red LED
• 3 LEDs: Red, green, yellow LEDs, usually with PIR and microwave channels associated with a specific color
Microwave Supervision
Automatic self-test of microwave channel for proper operation.
Type of output relay used to signal panel when an intrusion is detected.
• Form A: Two-terminal relay with Normally Closed output when energized
Separate output used to indicate supervision failures and/or anti-mask detection to the control panel.
Alarm Relay Forms
Vertical Adjustment
Capability to adjust the vertical PIR detector position relative to the optics, usually through a vertical shift in the PCB. Usually used to adjust range at different mounting heights, or accurately set the coverage pattern for different lenses or mirrors.
Horizontal Adjustment
Capability to shift the PIR zones left or right by a few degrees. Usually used to locate potential false alarm sources, such as a heating vent between zones, or to aim the optics in a particular direction, such as a hallway.
Trouble Output
PIR Supervision
Automatic self-test of microwave channel for proper operation.
Recommended Mounting Height
Suggested height to mount processor for optimal performance. Usually important for pet immune applications.
Operating Temperature
Temperature range at which the sensor can be expected to provide adequate protection. UL certification may have a narrower range.
Input Voltage
Voltage range at the terminal strip at which the sensor will operate. UL may have certified for a slightly narrower range.
Swivel Bracket Options
Brackets used to mount sensors in installations that have special aiming or mounting heights.
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