Dynasonics D300_301 Series Doppler Ultrasonic Flow Meter - Manual (Page 3)

Rev. 2/00 -1.2- 300/301
This manual contains detailed operating instructions
for all aspects of the D300/301 instrument. The
following condensed instructions are provided to
assist the operator in getting the instrument started
up and running as quickly as possible. This pertains
to basic operation only. If specific instrument features
are to be used or if the installer is unfamiliar with this
type of instrument, refer to the appropriate section in
the manual for complete details.
1. TRANSDUCER LOCATION
A. In general, select a mounting location on the
piping system with a minimum of 10 pipe
diameters (10 X the pipe inside diameter) of
straight pipe upstream and 5 straight diameters
downsteam. See Table 2.1 for additional
configurations.
B. On horizontal pipe, select a position that is
between 2 and 4 o’clock on the pipe, with 12
o’clock representing the top.
2. PIPE PREPARATION AND TRANSDUCER
MOUNTING
A. The piping surface, where the transducers are
to be mounted, needs to be clean and dry.
Remove loose scale, rust and paint to ensure
satisfactory acoustical bonds.
B. Loosely wrap the appropriate length of strap
around the pipe at the location determined in
Step 1. Refer to Figure 1.1 for proper
orientation.
C. Apply a liberal amount of couplant onto the
transducer face. Place the transducer onto the
pipe ensuring square and true placement. If
an RTV type of couplant (requiring curing
time) was utilized, allow sufficient time for
curing before applying power to the instrument.
PART 1 - QUICK START
General
FLOW
Figure 1.1
Top View of Pipe
Transducer Cable