FB1100 Flow Computer Instruction Manual
D301752X012
November 2023
6 Introduction
1.4.1 Physical Security
The flow computer end caps include retaining clamps for ATEX/IEC applications. In
addition, if local regulations require it, you can wire a tamper-resistant seal using the tie
holes located in the front and rear end caps, and in the coupling screws.
Figure 1-2. Retaining Clamps and Tie Holes for Tamper-Resistant Seals
Retaining clamp (For ATEX & IEC approved products only)
Tie holes in coupling screws
I/O
The flow computer comes with base I/O from both the CPU and the built-in multi-variable
(MV) sensor. Base I/O consists of:
Pressure (P) input from the MV sensor
Differential pressure (DP) input from the MV sensor
Connections for temperature (T) input from a customer-supplied RTD
Single general purpose digital output (DO) - for use with an odorizer or other device
Power Options
You can power the flow computer using an external DC input, an internal battery, or an
internal rechargeable battery connected to a solar panel.