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Installing the Field-Mount Transmitter
To mount the transmitter:
1. Identify the components shown in Figure 3-3. For dimensions, see Appendix A.
2. If desired, re-orient the transmitter on the bracket.
a. Remove the junction end-cap from the junction housing.
b. Loosen each of the four cap screws (4 mm) inside the junction housing.
c. Rotate the bracket so that the transmitter is oriented as desired.
d. Tighten the cap screws, torquing to 30 to 38 in-lbs (3 to 4 N-m).
e. Replace the junction end-cap.
3. Attach the mounting bracket to an instrument pole or wall. For pipe mount, two user-supplied
U-bolts are required. Contact Micro Motion to obtain a pipe-mount installation kit if required.
Figure 3-3
Transmitter components – field-mount transmitters
Mounting bracket
4 X Cap screws
(4 mm)
Junction end-cap
3.4
Grounding the transmitter
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.
If national standards are not in effect, follow these transmitter grounding guidelines:
•
Use copper wire, 14 AWG (2,5 mm
Keep all ground leads as short as possible, less than 1 Ω impedance.
•
•
Connect ground leads directly to earth, or follow plant standards.
LF-Series Flowmeters: Sensor/Transmitter Installation
Ground screw
Mating connector
CAUTION
2
) or larger wire size, for grounding.
Main enclosure
Conduit opening
for 4-wire cable
Junction housing
Mating connector
socket
13
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