Emerson Micro Motion LF Series, Installation Manual

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20 LF-Series Flowmeters: Sensor/Transmitter Installation
Installing the DIN Rail Mount Transmitter
To mount the transmitter:
1. Locate the transmitter in the desired position on the DIN rail.
2. Place the slot on back of the transmitter against the rail (see Figure 4-3
).
3. Apply pressure to the transmitter until the spring clamp snaps onto the rail.
Figure 4-3 Mounting and removing the transmitter
To remove the transmitter:
1. Slide a screwdriver into the spring clamp release loop (see Figure 4-3
).
2. Pull the spring clamp away from the transmitter.
3. Lift the transmitter from the rail.
4.4 Grounding the transmitter
If national standards are not in effect, follow these transmitter grounding guidelines:
• Use copper wire, 14 AWG (2,5 mm
2
) or larger wire size, for grounding.
• Keep all ground leads as short as possible, less than 1
Ω
impedance.
• Connect ground leads directly to earth, or follow plant standards.
CAUTION
Improper grounding could cause measurement error.
To reduce the risk of measurement error:
• Ground the transmitter to earth, or follow ground network requirements for the
facility.
• For hazardous area installations in Europe, refer to standard EN 60079-14 if
national standards do not apply.
DIN rail
Spring clamp
Spring clamp release loop