Emerson 3812 User Manual
46
Grounding meter electronics housing
Section 3: Electrical installation
Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
May 2015
3-9000-765 Rev H
3.3
Grounding meter electronics housing
Daniel 3812 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. A secondary ground is located outside
of the Transmitter Electronics Enclosure (
intrinsically safe operations. Connect a wire to the chassis ground lug installed inside the
Transmitter Electronics Enclosure as the primary ground. A secondary ground is located outside
of the Transmitter Electronics Enclosure (
). Digital grounds should never be
connected to chassis ground.
Figure 3-1 Transmitter Electronics Enclosure internal 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.
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.