Transducersmountingallocation - Omega FDT-25 User Manual

FDT-25 Handheld Ultrasonic Flowmeter
The first-time users may need some time to get familiar with the operation. However, the user friendly
interface of the instrument makes the operation quite easy and simple. Before long, the user will
configure the instrument with very little key pressing, since the interface allows the user to go to
the desired operation directly without any extra steps.
The following tips will facilitate the operation of this instrument.
(1) When the window display is between M00 to M09, press a number key x , the user will go
directly to the M0x window. For example, if the current window displays M01, press 7 and the user
will go to M07.
(2) When the window display is under M00 to M09, press the ENT key and the user will go to
M90; press ENT key to return. Press the dot key to go to M11
When the window display is under M25, press ENT key to go to M01.
§2.7 Transducers Mounting Allocation
The first step in the installation process is the selection of an optimum location in order to obtain a
more accurate measurement. For this to be completed effectively, a basic knowledge about the piping
and its plumbing system would be advisable.
An optimum location would be defined as a straight pipe length full of liquid that is to be measured.
The piping can be in vertical or horizontal position. The following table shows
Piping Configuration
Transducer Position
and
L up L dn
L up L dn
L up L dn
L up
L dn
L up
L dn
L up
L dn
L up
L dn
Upstream Downstream
Dimension Dimension
L up L dn
x Diameters x Diameters
10D 5D
10D 5D
10D 5D
12D 5D
20D 5D
20D 5D
30D 5D
11