ABB FEX631, FET632 Retrofit Instruction

About this manual

This document serves as an instruction manual for the retrofit conversion of ABB FEX631 and FET632 flowmeters. It details the procedures for modifying both integral mount and remote mount designs, including the replacement of transmitters and terminal boards. The guide also covers parameterization steps and necessary safety precautions for qualified personnel.

What's inside

• Safety
• General information and notes
• Introduction
• FXE/FXM modification – integral mount design
• FXE / FXM modification – remote mount design
• FEx300/FEx500 modification
• Parameterization

Frequently asked questions

Which standard flowmeter sensor models can be modified?

The instruction lists DM21, DM41, DM23, DM43, DE21, DE41, DE23, DE43, FEX3X1, and FEX5X1 as modifiable standard models.

What is the maximum signal cable length allowed for modifiable sensors?

Sensors with a signal cable length greater than 50 meters are excluded from modification.

What is the current output range of the new FET631/FET632 transmitter?

The new transmitter has a current output of 4 to 20 mA with HART protocol.