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Installation manual
3-9000-771
Figure 3-2: External ground lug
A. External ground lug
3.4
Conduit seals
Daniel 3818 LNG Liquid Ultrasonic Meters require conduit seals for installations in
hazardous environments. Adhere to safety instructions to protect personnel and
equipment.
HAZARDOUS VOLTAGE INSIDE
Do not open the Transmitter Electronics Enclosure when an explosive gas atmosphere is
present. Disconnect equipment from supply circuit before opening.
Failure to remove power may result in death or serious injury.
EXPLOSION HAZARD
Substitution of components may impair intrinsic safety. Do not disconnect equipment
unless power has been removed or the area is known to be nonhazardous.
Failure to comply may result in death or serious injury.
3.4.1
Startup for systems using explosion-proof conduit
Procedure
1. Assemble conduit to the Transmitter Electronics Enclosure. A conduit seal is
2. Check to make certain that all power to field wiring is turned OFF.
Installation manual
WARNING
WARNING
required within 18 inches (457 mm) of the enclosure.
Electrical Installation
May 2019
43
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