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ULTRA-E-F
APPENDIX 1 INSERTION TRANSDUCER INSTALLATION
Overview
Insertion transducers can be installed into metal pipelines via an isolation ball valve. The
maximum pipe diameter in which insertion transducers can be installed is DN4500mm. Sensor
cable length (6m 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 DN80mm.
A, Menu Configuration
Refer to Part 2 and Part 3, 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 ≥80mm.)
B, Installation Locating
After entering the setup parameters, the ULTRA-E-F will calculate the transducer spacing in
Menu
25. The transducer spacing is distance between the centre points of two insertion transducers.
Z
method is the most commonly used mounting method for insertion-type ultrasonic flow
meters, suitable for pipe diameters ranging from 80mm to 4500mm. 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)
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