38
Reference Manual
00809-0100-4772, Rev FA
Installation
March 2016
Installation
Figure 3-17. External Ground Connection
A. External ground connection
Note
Grounding the transmitter case using the threaded conduit connection may not provide a
sufficient ground. The transient protection terminal block (Option Code T1) does not
provide transient protection unless the transmitter case is properly grounded. See
“Transient protection” on page 111 for transient terminal block grounding. Use the above
guidelines to ground the transmitter case. Do not run the transient protection ground wire
with signal wiring as the ground wire may carry excessive electric current if a lightning strike
occurs.
3.6.2 Commissioning tag
The flowmeters are supplied with a removable commissioning tag that contains both the
Device ID and a space to record the device tag. The Device ID is a unique code that identifies
a particular device in the absence of a device tag. The device tag is used as an operational
identification for the device and is usually defined by the Piping and Instrumentation
Diagram (P & ID).
When commissioning more than one device on a fieldbus segment, it can be difficult to
identify which device is at a particular location. The removable tag provided with the
transmitter can aid in this process by linking the Device ID and a physical location. For each
device on the segment, the installer should note the physical location in both places on the
removable commissioning tag and tear off the bottom portion. The bottom portion of the
tags can be used for commissioning the segment in the control system.
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