Emerson 3-9000-771A User Manual

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Grounding meter electronics
Section 3: Electrical installation
Daniel 3818 LNG Liquid Ultrasonic Meter Installation Manual
May 2012
3-9000-771 Rev A
3.3
Grounding meter electronics
Daniel Liquid Ultrasonic Flow Meter electronics should be internally grounded for intrinsically 
safe operations. Connect a wire to the chassis ground lug installed inside the Transmitter 
Electronics Enclosure as the primary ground.  
Figure 3-1  Internal Transmitter Electronics Enclosure chassis ground
The internal grounding terminal shall be used as the primary equipment ground. The 
external terminal is only a supplemental bonding connection where local authorities permit 
or require such a connection.
A. Transmitter Electronics Enclosure internal ground lug
A.