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Pub. 42004-615L2
Model 670-801-EX and 670-801-UL SmartSeries Amplifiers Page: 7 of 15
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Installation
Before installing SmartSeries equipment, design the system layout taking into consideration personnel
safety, operational function and convenience, and power cable length. In general, for 115 V ac systems
the total power cable length should not exceed 1 mile (1.6 km), but the length of cable between the
stations is not a critical factor.
However, it is a good practice to run a separate power feed to each station located in hazardous areas.
With a separate feed, individual stations can be de-energized for service or maintenance without affecting
the power supply and operation of the other stations in the hazardous area.
Mounting
N
OTE: The mounting surface must be able to support 55 lbs (25 kg).
1. Remove the front panel. Allow the front panel to hang from the rear of the enclosure by means of
two retaining straps during installation. The straps serve as personnel safety feature and as a
safeguard designed to ensure the front panel flame path is not nicked, dented or otherwise damaged
while mounting the enclosure.
2. To maintain the explosion-proof integrity of the enclosure, all mounting hardware is located in non-
intrusive mounting holes under the front panel. The suggested mounting height of the station is 54
inches (137cm). Use standard 1/2-inch socket head cap screws or M12 bolts to secure the enclosure
to a flat mounting surface. See Figure 6 below for mounting hole dimensions.
Figure 6. Shows mounting holes with dimensions.
3. After the enclosure is securely mounted, remove the plug-in amplifier:
• Remove the four screws that secure the amplifier to the standoffs, and retain.
• Pull the amplifier straight toward you to disengage the 16-pin connector from the enclosure.
• Set the amplifier aside in a safe place while completing the installation.
N
OTE: The following instructions are provided to ensure compliance with the appropriate approval
standards. Select the version that applies to the equipment you have purchased based on approval agency
jurisdiction.