4230 Flow Meter
Section 4 Optional Equipment
4-26
There is a base section where the probes are mounted, two or
more extension sections (usually), and a scissors section at the
top that expands the entire assembly and tightens it inside the
pipe. The scissors section contains a long screw, that as it is
tightened, increases the length of the section.
4.10.3 U-Channel Mounting It is possible to mount a probe in a U-channel, but you cannot to
use the complete ring. You would use the base section only and
attach it to the U-channel surface with studs fired from a
power-activated stud gun. Consult the factory for more infor-
mation, if you must mount a probe in a U-channel.
4.10.4 Attaching the Probe First attach the probe to the probe carrier. The adapter, with the
probe attached then snaps into place on the mounting ring or
into the base section of the Scissors Ring. Attaching the probe to
an adapter and snapping the adapter to the ring lets you remove
the probe easily if service is needed later. To complete the
assembly, attach the probe cable to the ring with the self-locking
plastic ties supplied with the ring.
Route the probe cable away from the probe and along the edge of
the ring with holes and secure it in position by placing the ties
through the holes in the mounting ring and then locking them
around the cable, as shown. To prevent debris from catching on
the probe cable, it is important to attach the cable to the
mounting ring so that it offers as little resistance to the flow as
possible. Do this by installing plastic ties through all the
mounting holes provided. Make sure there are no loops or slack
sections in the cable. Attach the probe cable neatly and closely to
the mounting ring. You can route the probe cable either to the
left or right of the mounting ring.
CAUTION
Do not overtighten the plastic ties; they should be tightened
just enough to secure the cable in place, without greatly
indenting the cable. Overtightening the plastic ties may cut the
cable.
4.10.5 Installing the
Mounting Ring
Lower the mounting ring/probe assembly into the area of the
pipe. Place the cable on a secure surface. Next, grasp the
mounting ring and compress it into a tight circle. Then shove the
ring (with the pointed end of the probe oriented upstream) up
into the pipe the desired distance.
When the ring and probe are positioned as desired, simply
release the ring, allowing it to expand outward. It may be nec-
essary to rotate the ring to position the probe in the bottom
center of the pipe. This completes the probe installation proce-
dures using the mounting ring.