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> Opto 22 G4AD3 G4 AD3 analog i/o input module
Opto 22 G4AD3 G4 AD3 analog i/o input module
G4 AD3 4 to 20 mA Analog I/O Input Module
* Description: 4 to 20 mA Input
The G4AD3 module provides a single channel of transformer and optically isolated current-to-digital conversion. The nominal input range is 4 to 20 milliamps with an under/over range capability from less than 3 milliamps to greater than 35 milliamps. One of the unique features is that the isolated loop supply can be provided by the G4AD3. This eliminates the need for the user to provide the loop supply (typically 15-48 V) and also saves the associated wiring, barrier strips, etc. The G4AD3 module also includes complete electrical channel-to-channel isolation which eliminates any ground loop problems. Modules plug into an Opto 22 Modular controller or an analog I/O brick and are secured by a captive screw. The field connections are made to the terminal strip located on the Brick base or controller I/O board.
Nominal Input Range: 4 to 20 mA
Module Input Impedance: 414 Ohms
Loop Supply: 28 Volts DC Nominal
Response Time: Full-scale step change in 3 ms
Isolation (Transient) Input-to-output; Input-to-analog supply: 4,000 Vrms Operating Ambient Temperature: -30 degrees Celsius to 70 degrees Celsius
Storage Ambient Temperature: -40 degrees Celsius to 85 degrees Celsius
