I/O Wiring Requirements; Installing The Floboss 107 And Expansion Rack; Required Tools - Emerson FloBoss 107 Instruction Manual

2.3.2 I/O Wiring Requirements

2.4

Installing the FloBoss 107 and Expansion Rack

Caution

2.4.1 Required Tools

Issued Fed-07
a separate ground rod or grid system. All grounding should terminate at
a single point.
If the pipeline to earth impedance is greater than 2 ohms, electrically
isolate the FB107 installation and install a ground rod or grid grounding
system.
I/O wiring requirements are site- and application-dependent. Local,
state, and NEC requirements determine the I/O wiring installation
methods. Direct buried cable, conduit and cable, or overhead cable are
all options for I/O wiring installations.
Shielded, twisted-pair cable is recommended for I/O signal wiring. The
twisted-pair minimizes signal errors caused by Electro-Magnetic
Interference (EMI), Radio Frequency Interference (RFI), and transients.
Use insulated, shielded, twisted-pair wiring when using MVS signal
lines. The terminal block accepts wires up to size 16 to 24 AWG.
This section details how to install the FB107 base unit and the
expansion rack.
To avoid circuit damage when working inside the unit, use
appropriate electrostatic discharge precautions (such as wearing a
grounded wrist strap).
When working on units located in a hazardous area (where explosive
gases may be present), make sure the area is in a non-hazardous
state before performing procedures. Performing these procedures in
a hazardous area could result in personal injury or property damage.
Use the following tools to perform installation and maintenance
procedures on the FB107. For tools required for installation or
maintenance of accessories, refer to the ROC/FloBoss Accessories
Instruction Manual (Form A4637).
Philips screwdriver, size 0.
Flat blade screwdriver, size 2.5 mm (0.1 inch).
Flat blade screwdriver, large.
Installation and Use
FloBoss 107 Instruction Manual
2-7