System Installation
Spacing & Mounting the Transducers
Once you have selected a proper transducer site, you must ensure proper
transducer spacing and mounting in order to maximize signal strength and
accuracy. Do this by following the steps below.
Spacing &
Mounting the
Transducers
1.
Determine the mounting method that is appropriate for your
application: V, W, Z, WW, WV.
2.
Refer to
Chapter 4
to configure the flowmeter via the keypad or to the
UltraScan manual to configure with the UltraScan software. Note the
value required for the transducer spacing (value calculated by and
displayed on flowmeter LCD or in UltraScan).
3.
Clean the area of the pipe designated as the mounting location.
Remove any rust, scale, or loose paint. Well-bonded paint does not
need to be removed.
Note
On horizontal pipes, the transducers should be mounted in the 3
o’clock and9 o’clock positions in order to avoid situations that can
cause signal loss, such as sediment along the bottom of the pipe or gas
bubbles or air pockets along the top of the pipe.
▲
4.
Apply a wide bead of sonic coupling compound lengthwise down the
center of the face of each transducer.
Note
The coupling compound should squeeze out from around the
edges of the transducer when placed against the pipe. There should be
no air gaps between the transducer and the pipe. Refer to
“Replacing
Sonic Coupling Compound”
(Chapter 7) for instructions on how to
apply sonic coupling compound and for information on using other
sonic coupling compounds for high temperature, underground, or
submerged installations.
▲
5.
Attach the transducers to the pipe using the stainless steel clamps and
referring to one of the following sections to mount the transducers
according to the selected mounting method:
V method
,
W method
,
Z
method
, or
WV and WW methods
.
Note
The transducers should be mounted on the pipe in relation to the
direction of flow, as shown in the following figure. Reversing the
position of the upstream and downstream transducers or reversing the
transducer cable connections to the instrument will result in negative
flow readings.
▲
2-4
DCT6088 User Guide
Thermo Fisher Scientific
Summary of Contents for DCT6088
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