Product Description
Output Current: 4-20 mA, Accuracy: 16 µA, Resolution: 12 bits. Response time: Full scale step, change in 3 ms. Maximum loop resistance when sourcing loop: 650 ohms. Isolation (Transient) 4,000 Vrms Input-to-output, 4,000 Vrms Input-to-analog supply. Ambient temperature: -30 to 70 °C Operating, -40 to 85 °C Storage. The G4DA3 provides a single channel of transformer and optically isolated digital-to-current conversion for 4-20 mA current loops. The isolated loop supply can be provided by the module, eliminating the need for you to provide the loop power supply (typically 15-48 V) and associated wiring, barrier strips, and so on. This module also includes complete electrical channel-to-channel isolation, which eliminates troublesome ground loop problems. The modules provide a single channel of transformer and optically-isolated digital-to-current conversion for 0-20 mA and 4-20 mA current loops. One of the unique features is that the isolated loop supply can be provided by the modules. This eliminates the need for the user to provide the loop power supply (typically 15-48 V) and also saves the associated wiring, barrier strips, etc. The modules also include complete electrical channel-to-channel isolation, which eliminates troublesome 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 through four contacts to the terminal strip located on the brick base or controller I/O board.. Opto 22. Opto 22. G4DA3.