Allen-Bradley 1444-TSCX02-02RB User Manual page 24

Chapter 2 Install the Dynamix 1444 Series Monitoring System
24
Do not replace components or disconnect equipment unless power has been
switched off or the area is known to be free of ignitable concentrations.
WARNING: Consider the following:
• If you insert or remove the module while Backplane power is on, an electric
arc can occur, and could cause an explosion in hazardous location
installations.
Be sure that power is removed or the area is nonhazardous before
proceeding.
• When you connect or disconnect the Removable Terminal Block (RTB) with
field side power applied, an electric arc can occur. This arc could cause an
explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before
proceeding.
• If you connect or disconnect wiring while the field-side power is on, an
electric arc can occur. This arc could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous
before proceeding.
• Exposure to some chemicals degrade the sealing properties of materials that
are used in the following devices:
• Relay RL1, Epoxy.
We recommend that you periodically inspect these devices for any
degradation of properties and replace the module if degradation is found.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018