TF1100-EC/EI Manual
47
transducer, furthermore, use special cement borer). The maximum pipe diameter in which
insertion transducers can be installed is DN6000mm. Sensor cable length (10m standard)
normally can be extended to as long as 300m. Follow the procedure below to install
insertion transducers, the pipe size should not be smaller than DN50mm).
A, MENU CONFIGURATION
Refer to Part 2 and Part3, the transmitter is the same as Clamp-on Ultrasonic Flow meter,
entering configuration parameters (pipe O.D., Wall Thickness, liquids type, etc.), then
calculate the Transducer Spacing (Menu 23, Transducer type is:
5. Plug-in Type B45
;
Menu 24, Transducer Mounting is:
1. Z
, for the Insertion transducer, pipe line diameter
≥
100mm,
the transducer Mounting type is Z mode, less than 100mm, is V methods.
B, INSTALLATION LOCATING
After entering the setup parameters, the TF1100 will calculate the transducer spacing
(Menu 25, For TF1100, commonly, this distance= I.D.
(Inside Diameter) – 9.113mm). The transducer spacing is distance between the centre points
of two transducers.
Z
method is the most commonly used mounting method for insertion-type ultrasonic flow
meters, suitable for pipe diameters ranging from 100mm to 6000mm. Due to strong signal
strength and high measurement accuracy, the Z method is preferable for pipe sections
severely rusted or with too much scale formation on the inside wall. When installing the
transducer using the Z method, be sure that the two transducers and the pipeline center axis
are in the same plane, but never in the 6 or 12 o’clock positions.
Perform the following steps to install transducers using the Z mounting method:
Locate the reference mounting positions of 3 and 9 o’clock as shown in Fig. 1.
Fig.1 Reference Mounting Positions of 3 and 9 o’clock ( Z Method)
1, Locating
By positioning paper, or positioning ropes, first identified point A and then confirmed C
points
(A and C into 180° symmetric), extended C level again, determined to point B, L = BC
Step by step shown as below Fig.2 – 6
