Detailed Product Description

·          The CH-BA® ELC-442 is a versatile, high-performance  BACnet-compliant field controller designed for of central plant systems, air handling units, large terminal units, and similar control and seamlessly with your BACnet system. It communicates at up to 76.8Kbps on a BACnet MS/TP LAN or can operate as a stand-alone controller.

·          ALL ELC-442 control logic is programmed with CH-BAs easy-to-learn graphical programming language,ViewLogic.This self-documenting softwares complete function library enables you to implement entirely flexible control strategies. A single ELC-442 can contain numerous algorithm loops that control various parts or multiple pieces of equipment.Programming and setup data is stored in non-volatile flash memory, and each ELC-442 contains its own software time schedule,ensuring stable and reliable operation.

·          The ELC-442 supports the OP-500 intelligent operation display panel, which offer convenient data display,setpoint adjustment, and technician to equipment setup parameters.

·          The ELC-442 is built for high-speed processing ,with an internal logical loop time of 100msec. Programmable timers also maintain a resolution of 100msec.

·          High-resolution,10-bit analog inputs are field-adjustable for thermistor/dry contact,0-5 VDC,4-20 mA or 0-10 VDC.Analog outputs are switch- selectable for 4-20 mA or 0-10 VDC.For equipment monitoring, and onboard LED for each binary output indicates ON/OFF status, and a separate LED indicates communication activity on the MS/TP LAN.

·          CMOS circuitry,a four layer circuit board with separate ground plane, and extensive hardware software,and power-supply filtering ensure reliable and stable operatio. The CMOS processor uses an internal watchdog,and power supply voltage is monitored to provide automatic shutdown and data backup.