XField®
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XField®Terrain-Following Volumetric Sensor Intrusion detection sensor for above-ground applications FEATURES AND BENEFITS • Tall, narrow, well contained detection zone • Terrain-following • Volumetric • Direct-to-Digital Signal Processing (DSP) • Enhanced DSP processing algorithms filter out environmental stimuli • 4-wire and 5-wire basic configurations • Basic configurations can be stacked to increase detection zone height • Maximum detection zone height of 6.1 m (20 ft) for free-standing or wall installations • Maximum detection zone height of 7.3 m (24 ft) for fence installations • Meets the requirements of test criteria of the USNRC Regulatory Guide 5.44 • Simple design and easy-to-install • Immune to 50 and 60 Hz power grid interference • Local or remote configuration and diagnostics • Self-cleaning, corrosion-resistant hardware • Easy to maintain The XField® sensor is a terrain-following volumetric sensor that creates an electrostatic field around a set of parallel field and sense wires. The processor senses changes when events, such as intruders penetrating the wires, take place. XField is used in free-standing, fence-mounted, roof and wall applications. The system’s tall, narrow, well-contained detection zone allows the sensor to be installed in a wide variety of applications and minimizes nuisance alarms caused by nearby moving objects. How it works Digital Signal Processing (DSP) analyzes the capacitance of each sense wire independently and uses the amplitude of change (size of the intruder), rate of change (movement of the intruder) and the time the target spends in the detection fields to qualify the alarm.

XField I Terrain-Following Volumetric Sensor Configuration Each XField signal processor provides two zones of detection, A and B. Each of the zones can be configured with either 4 wires (two field wire and two sense wires) or 5 wires (three field wires and two sensor wires). To increase the height of the detection zone, the A and B zones can be stacked. The maximum detection zone height is 7.3 m (24 ft) for a fence-mounted, 10-wire configuration. In all cases, the detection zone is approximately 1 m (3.3 ft) wide at the center and can be up to 150 m (500 ft) long. XField software Software...

XField I Terrain-Following Volumetric Sensor Inputs/outputs Each processor has two auxiliary dry-contact inputs. When the processor is operated in standalone mode these inputs serve as self-test inputs. In network mode, the processor monitors these inputs, typically two relay inputs from nonnetwork sensors, and sends the information to the Network Manager (NM) software. Each processor is equipped with four (4) programmable form C latching relays. In a standalone configuration, the four relays are typically assigned to alarm A, alarm B, supervision and fail. In a network configuration, the...

XField I Terrain-Following Volumetric Sensor Technical specifications PROCESSOR SPECIFICATIONS Main features • Probability of detection (Pd): Optimized for the detection of an upright 35 kg (77 lbs), or larger, person moving between 50 mm (2 in) per second to 8 m (26 ft) per second, with a probability of detection of 95% with 95% confidence. This is based on penetration of the intruder through the detection zone. • Detection zone width: Walk-up detection of a 35 kg (77 lbs) person at a maximum of 0.5 m (20 in) • False Alarm Rate (FAR): Fewer than 1 per zone per month alarms from...