ECO-ALFA is an economizer with built-in differential pressure sensor able to pilot up to 24 ALFA remote modules (each equipped with a ¼,&rdquo, pilot which commands pneumatic valves). It has an LCD display on which the pressure measured by the sensor, the activated valve, the current cycle status (pause, work, post-cleaning, ... ), the type of operation, any alarms present, etc., can be monitored in real time. ECO-ALFA is fully programmable and communicates with the ALFA unit by means of a patented system. Each ALFA module is assigned a serial address, which identifies each individual board. Using three keys, the user can access the programming menu and enter all the board parameters. ECO-ALFA can also automatically detect the presence/absence of the off-take valve connected. The main feature of this system lies in the ease of wiring, which is reduced to a single two wire cable that starts from the control unit and crosses one by one the ALFA unit mounted on each valve on the tank. ECO-ALFA has 2 digital inputs and 2 clean contact relays. The instrument is pre-engineered for an optional RS485 serial communication output, to be requested when the order is placed (RTU Modbus protocol), allowing it to exchange data with a PC/PLC and other data storage units.

Main Features	Features	Values
Dimensions	External Dimensions ( L x H x W mm )	121x66x52,2(eco-alfa) 60x58,8x62(alfa)
Weight (kg)	0,2(eco-alfa), 0,225(alfa)
Protection	Protection Level (standard)	Panel installation IP56 (eco-alfa), IP65 (alfa)
Temperature	Working Temperature (°C)	-10... +60
Storage Temperature (°C)	-20... +80
Power Supply	Power Supply Range (standard)	30-33Vdc(eco-alfa)
Power Consumption	5W(eco-alfa) + 20W(alfa)
Display	Display Type	LCD
Resolution	128X64
Display Color (standard)	Blu
Inputs	Digital Inputs (nr)	2
Pressure Input	ok
Pressure Range	-99/+999mmH2O
Outputs	Relay Outputs (nr)	2
Relay Output Power	2A 30Vdc/250Vac resistive
Coils Control Voltage	24Vdc
Functions	Cyclic Management	ok
Delta Pressure Management	ok
Customizing Cycles	ok
Remote Start/Stop	ok
Autopause	ok
Precoating	ok
Post-cleaning	ok
Cleaning cycle	ok
Broken Coil Control	ok
Serial Ports	RS485	optional
System	Maximum Driver Managed	24 alfa
Type	MASTER (eco-alfa), SLAVE (alfa)
Type of driver connectable	ALFA
Maximum number of coil	1 for each alfa
Type of control driver	BUS
Controls	Buttons (nr)	3
Application	Type	Dust collectors

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