Appleton Installation Instructions: AEPGI Explosion-Proof Grounding Indicator, 305903 | Appleton Manuals & Guides
305903 INSTRUCTION SHEET
The Appleton™ AEPGI Explosion-Proof Grounding Indicator
Installation and Operation Instructions
FOR PROPER AND SAFE INSTALLATION OF THIS PRODUCT, PLEASE READ THE FOLLOWING INSTRUCTIONS
Appleton’s AEPGI Explosion-Proof Grounding Indicator provides a means to safely discharge an electrostatic charge to ground
in hazardous areas. The arc produced by a rapid discharge of accumulated static electricity to ground can ignite explosive fumes
causing damage to equipment and personnel. Therefore, before loading and unloading explosive uids, it is necessary to provide a
safe path that any electrostatic charge can be safely discharged to ground prior to connecting or disconnecting the uid transfer lines.
The AEPGI is equipped with a green and red indicator to show the status of ground continuity between the vessel and AEPGI. A green
indicator shows there is adequate ground continuity for uid transfer and red indicator shows there is a brake in ground continuity.
Control of the transfer equipment can also be controlled by a dry relay contact inside the AEPGI. When an adequate ground contact is
detected, a normally open contact will close, enabling the uid transfer equipment to activate. When the ground continuity is broken,
the contact will open, stopping the uid transfer equipment. Transfer operations should never be under taken when ground continuity
is broken, and not restarted until a satisfactory ground path is reestablished.
IT IS IMPORTANT TO READ, UNDERSTAND AND FOLLOW THESE INSTRUCTIONS FOR PROPER INSTALLATION
AND SAFE USE OF THIS PRODUCT. RETAIN THIS INSTRUCTIONS FOR FUTURE REFERENCE.
Signal Words Defined:
DANGER indicates a hazardous situation which, if not avoided will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided could result in death or serious injury
CAUTION indicates a hazardous situation which, if not avoided could result in minor or moderate injury.
NOTICE is used to address practices not related to physical injury.
Equipment shall be installed in accordance with all National and Local codes, acceptable to the Authority Having Jurisdiction.
Only qualied personnel should install, inspect, and perform regular maintenance on the equipment.
Refer to the product nameplate for important information regarding the hazardous location rating, enclosure environmental rating,
agency approval(s), and important safety information. Adhere to all warning and caution statements located on the exterior or interior
of the enclosure.
Class I, Division 1 locations require a conduit seal to be installed in each conduit run within the specied distance noted on the
product nameplate.
Unused conduit openings shall have a certied close-up plug installed that has the same hazardous location ratings as the
enclosure. The close-up plug must engage a minimum of ve full threads.
Always keep the cover bolts tight to prevent ignition of hazardous atmospheres and disconnect circuits before opening cover.
Only use the original cover screws provided with enclosure
Take extreme care not to damage the at-machined ange when opening the enclosure cover. Damaging the ange could affect
the enclosure’s integrity to protect the hazardous area.
Dirt, grease, and other foreign material must not accumulate on the at-machined ange surface of the body and cover. The cover
and body must fully mate against each other to provide the proper protection to the hazardous area.
Do not attempt to repair the cover gasket if damaged; contact factory for replacement. Remove damaged gasket and continue
to use the enclosure. The gasket does not affect the enclosure’s safety for use in the hazardous locations. However, the enclosure’s
environmental rating(s) will no longer be valid.
Install only an approved drain tting that has the same hazardous location ratings as the enclosure. Note, care must be taken
during hosedown operations. The enclosure may be watertight, but the drain may not be.
Since the conditions of use are outside of our control, the purchaser should determine the suitability of the equipment for the
intended use and assumes all risk and liability regarding the specic application.
Appleton • 1.800.621.1506 • www.appletonelec.com 305903 Rev. 6 07/29/19 • Page 1 of 4
MOUNTING
WARNING: TO AVOID RISK OF ELECTRICAL SHOCK TURN POWER OFF BEFORE INSTALLATION AND MAINTENANCE
1. It is the responsibility of the installer to properly install the enclosure using the mounting feet supplied with the enclosure. If the
mounting feet are damage, contact the factory for replacement.
2. Mount the enclosure on a at surface capable of supporting the enclosure, controls devices, wiring, etc. Approximate weight of
the AEPGI is 20 pounds.
3. Attach conduit system with seal tting(s) in accordance with the required distance stated on the product nameplate. One,
3/4-NPT opening is provided on each side of the enclosure. A conduit seal shall be installed within the specied distance noted
on the product nameplate.
4. Unused conduit openings shall have a certied close-up plug installed with the same hazardous location ratings as the enclosure. The close-up plug must engage a minimum of ve (5) full threads.
5. Remove cover bolts and set aside. Take extreme care not to damage the at-machined ange of the body and cover.
6. Pull wires into enclosure leaving enough length to make the required electrical connections.
7. To ensure the AEPGI is properly bonded to earth, two independent earth grounds are required. In addition to the electrical system
ground, it is recommended a separate copper grounding rod be installed near the detector. The grounding rod shall be driven
and in contact (7 ft. minimum) of clean EARTH and comply with the National Electrical Code® and all local electrical codes.
8. Inspect and perform a continuity test for all electrical connections.
9. Check cover and body at-machined anges for scratches and/or gouges before installing cover. Clean the anges and inspect
the cover gasket for damage.
10. Line up the cover and body bolt holes. Hand start the corner bolts rst, before installing the remaining cover bolts. Tighten
cover bolts to the required torque.
11. Cover must fully seat against the body ange to provide a proper explosion proof joint.
12. Install conduit seal per manufacturer’s installation instructions.
305903 Rev. 6 07/29/19 • Page 2 of 4Appleton • 1.800.621.1506 • www.appletonelec.com
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