Document No LM0670 Issue A Rev 2 November 2017 Page 15 of 15
Appendix
Fluidwell wiring – please also see separate wiring diagram
Refer to drawing depending on what has been supplied. The correct drawing is supplied with each order
and can be accessed via the website url. The url is given on the quick start instructions and the outside
of the flowmeter and instrument.
Integral Fluidwell Exi (F112, F118, F018 etc) display:
Connection of field wiring is simple.
1 – If the M20 gland thread is provided in the cover.
Remove the front of the display and feed the cable through the gland, up the stem and connect
to the terminals as shown in the other instructions.
2 – If the M20 thread is not provided, remove the front of the display and undo the nut holding
the instrument back box to the cover. Drill a 20mm clear hole in the desired position on the back
box - depending on field orientation. Feed the cable through the gland, up the stem and connect
to the terminals as shown in the display instructions.
Remote Fluidwell Exi (F112, F118, F018 etc) display:
Connection of field wiring is simple. Remove the quantity 4 M4 socket cap head screws retaining
the top cover to the cap. Remove the cover and pass through 2-wire customer field cabling. Use
a connector and attach it to the 2-wires of the field cabling. Ensure that the O-ring is in place on
the top cap surface. Lower the top cover onto the flowmeter top cap carefully over the O-ring
and reassemble using the M4 socket cap bolts. Draw down the gland provided by others and fit
to the thread provided in the top housing. Ensure field cabling is not straining the connector
within the cover; clamp the gland to the field cabling. The installation is now complete.
Exi display 4-20mA output option enables the unit to transmit a flow rate signal. This is optionally
available through the M20 gland on the side. It may be necessary to make the gland hole in the
instrument housing. This should be wired up as follows (Fluidwell display):
1. Remove the four counter-sunk screws on the display front.
2. Pull out the green 7-way adaptor plug.
3. Undo the M14 nut inside the display box and remove box.
4. There are four wires from the display. The two blue wires are the flowmeter signal. The
red and green wires (if fitted) are for the 4-20mA output. The terminals are also marked
(+) and (-). From the flowmeter body there are four wires. One pair is the active reed
switch, other pair not utilized (see Field Wiring section above). (See page 38 of the
display instructions for a wiring diagram of the display; Section 5 Configuration Example
3).
5. Reassemble the cover with the four cap bolts ensuring that the sealing O-rings are kept
in place.
6. Reassemble the display box onto the cover using the M14 nut.
7. Re-engage the 7-way adaptor plug and re-secure the instrument front with the four
counter-sunk screws. The flowmeter is now ready for operation.
To prove the flowmeter is functioning without being installed in the line, it is possible to
blow gently through the meter. You should be able to hear the rotor rotate and see the flow
display.
Ensure that any dangerous fluids that may be on the rotor assembly are removed
before this test.
Please do not use an airline as the rotor will be unknowingly damaged.
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