The DPFREG20 digital indicator is a device for measuring, displaying and controlling (with PID regulator) the differential pressure. The pressure is controlled by a modulated output signal which may be analog (4-20 mA) or digital (ON-OFF type). The instrument has the capability for piloting a remote device (such as an adjustable frequency drive - inverter - or a valve) in order to mantain the preassure measured by the sensor inside the instrument constant at a preset value. The instrument also has 3 relay outputs and the status of each of the 3 relays is indicated by three LEDS on the instrument front panel. The DPF20 REG may also include (on demand) an interface for digital communication to exchange of data with remote instruments as PC or PLC. It is available both for external installation (DPF-20 REG) and on the control panel&rsquo,s front door (DPF-25 REG).

Main Features	Features	Values
Dimensions	External Dimensions ( L x H x W mm )	195x148x80
Protection	Protection Level (standard)	IP56
Temperature	Working Temperature (°C)	-3... +50
Power Supply	Power Supply Range (standard)	115/230Vac 50-60Hz
Power Supply Range (optional)	24Vac/24Vdc
Power Consumption	10VA
Display	Display Type	7-segment display
Resolution	3 digit
Display Color (standard)	red
Led	7
Inputs	Digital Inputs (nr)	1
Pressure Input	ok
Pressure Range	-999/+9999mmH2O
Outputs	Relay Outputs (nr)	3
Relay Output Power	3A/115Vac
Output Voltage	optional
4-20mA Output	optional
Serial Ports	RS485	ok
Controls	Buttons (nr)	3

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