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GENERAL INFORMATION

XW-PC-3A has been designed to use with XW1000 /XW1000A /XW1000B /XW1000C /XW1000D /XW1000E sensing cables, point sensors and normally open, dry contact devices (float switch, pressure or vacuum switch, optical probe with adapter, limit switch, etc.). Up to 1500m of sensor cable can be monitored by the XW-PC-3A. With RS-485 technique, the distance can be even enlarged to 1200m. The leakage will make the relay working and trigger the alarm, then system will pinpoint the location. 

XW-PC-3A has five LED to indicate power, status and communications activity, as well as a relay with SPDT contacts. The XW-PC-3A can be used as a stand-alone leak detection alarm, or connected to a host system (computer, or control automation system) via MODBUS-RTU(ASCII), twisted pair RS-485 serial communication wiring.

 Product Information

u  Fault alarm, leakage alarm, interference alarm and communication status alarm are available.

u  3-digit LCD screen displays the leakage position with an accuracy of 0.1M

u  AC: 24V or 220V models are available; DC: 12V or 24V models are available.

u  With RS-485 technique, the communication distance up to 1200 meters.

u  Normal power on or normal power off  relay output  form.

u  Standard Modbus protocol, 128 data storage, power-off data memory.

u  Through the software setting module address and communication baud rate.

u  Good performance: anti-static, anti lightning, anti surge.

 Installation

Choose a location where the module will be protected from the elements,temperature extremes or heavy vibration.The XW-PC-3A is designed to be snapped onto standard 35mm DIN rail.The XW-PC-3A should be mounted within 1200m (4000ft) wire run from the control system host. Contact the factory for methods to increase the wire run distance beyond 1200 m.

System Description

Xiangwei leakage location system including: controller, sensing cables, outgoing line, other assemblies, etc.

According to relay output signal, XW-PC-3A can control peripheral devices such as audible and visual alarm, phone dialer, switch value acquisition module, short message module, etc.

When the sensing cable connects to RED, GRN, YEL, BLK, the output signal of relay is NO, COM and NC correspondingly.

To avoid damage to the XW-PC-3A, store the unit in it’s packaging in a dry place until ready to install.

Installation conditions

eq \o\ac(○,1)1Please install the controller in a firm indoor collection box or cabinet or other places easy to maintain and check. The installation position shall be protected from the elements, temperature extremes or heavy vibration, corrosive gas environment and other electronic interference sources, etc.

eq \o\ac(○,2)2XW-PC-3A should be mounted within 1200m (4000ft) wire run from the control system host (RS-485 mode). Contact factory for methods to increase the wire run distance beyond 1200m.

eq \o\ac(○,3)3The XW-PC-3A is designed to be snapped onto standard 35 mm DIN rail. Existing electrical or instrumentation cabinets with spare rail space make good mounting locations. The controller power should be off during installation.