BE6000 Ultrasonic Flow Meter O&M Manual
Flomotion Systems, Inc. ~ FlomotionSystems.com
16
6. Selecting a Location for Transducer Mounting
1. Locate the transducers downstream from the center of the longest available straight run. A location
ten pipe diameters or greater downstream from the nearest bend will provide the best flow profile
conditions.
2. Do not install the transducers downstream from a throttling valve, a mixing tank, the discharge of a
positive displacement pump or any other equipment that could possibly aerate the liquid. The best
location will be as free as possible from flow disturbances, vibration, sources of heat, noise, or
radiated energy.
3. Avoid mounting the transducers on a section of pipe with any external scale. Remove all scale, rust,
loose paint etc., from the location. Do not mount the transducers on a surface aberration (e.g., pipe
seam, etc.).
4. Do not mount transducers from different ultrasonic flow meters on the same pipe. Also, do not run
the transducer cables in common bundles with cables from communication equipment, other
electronic systems or any type of ultrasonic equipment. You can run these cables through a common
conduit ONLY if they originate at the same flowmeter.
5. Never mount transducers under water, unless you order submersible units and you install them in
accordance with factory instructions.
6.
Avoid mounting transducers on the top or bottom of a pipe.
The ideal placement is either the nine
o’clock or three o’clock position for Reflect Mode, or one transducer at nine o’clock and the other at
three o’clock for Direct Mode. Mounting on a vertical pipe is recommended only if flow is in the
upward direction.
Preparing the Pipe Surface
1. Pick a mounting location with the longest straight run. You must have easy access to at least one
side of your pipe. The mounting location must remain full, even at zero flow.
2. Decide on your mounting mode (Z or V). Use V Mode whenever possible.
3. After receiving the spacing dimensions from the Installation Menu, prepare the pipe surface.
Degrease the surface, if necessary, and remove any grit, corrosion, rust, loose paint, etc. Use
abrasive material provided to create a clean contact surface for the transducers.
4. Refer to the next sections for illustrated instructions on how to locate each area to be cleaned and
how to use each mounting option.
Please note that the instructions show vertical mounting for clarity purposes only. Do not install
transducers on the top of a pipe. NOTE: In the following paragraphs, references to the 9 o’clock
position indicate the section of the pipe that is closest to you.
1. Install transducers in accordance with instructions in the manual and the appropriate installation
drawings.
2. Apply a 1/4” wide bead of couplant edge-to-edge down the
center of the emitting surface of the transducers.
3. Follow the instructions in the manual for installing the
transducers.
4. For permanent applications allow the RTV type couplant to
cure. It cures at room temperature upon exposure to
moisture in the air. During the cure, it releases acetic acid
(a vinegar like odor). It reaches full cure within 24 hours.
TRANSDUCERS
Apply 1/4” bead of couplant
to emitting surface.
