Xylem FT420 RATE/TOTAL INDICATOR - Manual (Page 4)

SET
Panel Cutout
R .38 Max, Typ.
.20 Max.
Panel
Thickness
1.50
3.85 typ.
.36
3.620
+.03/-.00
Typ
.70 x .18 Clamp
Area, Typ
Gasket
INSTALLATION
Page 2
Wall Mount. To mount an FT400-Series indicator to the
wall, hold the unit in the desired position, mark the holes
in the mounting feet, drill and mount with screws. With the
FT420W-65 option, first remove the front cover to gain access
to the mounting screw holes.
A meter-mounted FT400-Series can be converted to a wall
mount using an MK20 mounting kit.
Meter Mount. If the FT400-Series indicator was ordered as
an -M model, the housing is already directly mounted to the
flow sensor and needs no further installation.
An FT400-Series module can be converted from a wall-to a
meter-mount using the MK10 adapter kit that includes a lower
housing and associated hardware as follows:
1) Remove the strain relief through which the flow sensor
cable runs.
2) Cut the cable to about 6” in length. Carefully strip the
cable jacket to expose the three colored wires (red,
white, and black) inside.
3) Route the wires through the threaded connector
pre-installed in the bottom of the housing.
4) Start the threaded connector into the female thread on
the top of the flow sensor. Be sure to match the
oblong shape on the bottom of the housing to the
depression on the top of the flow sensor.
5) Using an ordinary screwdriver inserted in one side of
the slot (see drawing), tighten the screw as much as
possible.
6) Strip the wire ends, make the connections to the
FT400-Series indicator as shown in Connections
Diagrams, and then use the cover screws to attach the
indicator to the top of the housing.
Panel Mount (FT420 Only). Using the “Panel Cutout” drawing
as a guide, cut a square hole in the panel. Remove the clamps
from the back of the FT420P and insert the indicator unit
through the cutout, taking care that the panel sealing gasket
is in place between the front of the panel and the flange of the
indicator. Hold the indicator in place while starting the screw
of one of the two clamps. Finger tighten the screw, then install
the other clamp. When both are in place, firmly tighten the
clamps with a small wrench or nut driver.
Sensor Wires
Sensor Wires
Meter Mount
Panel Mount