ABB FLO G4 Flow Computer User Manual

About this manual

This manual describes the uFLO™ (microFLO™) flow computer, its hardware components, and software features. It includes detailed sections on system description, installation options (pipe‑mount, wall‑mount, battery and solar‑panel installations), and connectivity (USB, RS‑232, Ethernet, Bluetooth).

Later chapters cover maintenance procedures, calibration, clock changes, and extensive troubleshooting guidance, plus an appendix with Modbus register maps for advanced configuration.

What's inside

• Introduction
• System Description
• Installation
• Startup
• Maintenance
• Troubleshooting
• Modbus Register Maps
• Calibration
• Battery and Power Options
• Connectivity Setup

Frequently asked questions

How do I replace the battery pack?

The manual provides step‑by‑step instructions in section 4.10 for removing the existing battery pack and installing a new one.

How can I set up Ethernet connectivity for the uFLO™?

Section 3.3.3 explains the setup of the uFLO™ for Ethernet connectivity, including IP configuration.

What is the procedure for performing a warm boot?

Both hardware and software warm boot procedures are described in sections 45.1 and 45.2 of the manual.

Where can I find the Modbus register map for the flow computer?

Appendix A contains the complete Modbus register maps for the uFLO™ system.