VorTek U44 Series, Инструкция по эксплуатации

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Series U44 Instruction Manual
M-000-00090
15
2.3.6 Z Method
The signal transmitted in a Z method installation has less attenuation than a signal transmitted with the V or W
methods. When pipes are too large, there is some suspended solid in the fluid or the scaling and liner are too thick.
This is why the Z method utilizes a directly transmitted (rather than reflected) signaling which transverses the liquid
only once. The Z method is able to measure on pipe diameters ranging from 4 to 48 inches (100 mm to 1200 mm)
approximately. Therefore, the Z method is recommended for pipe diameters over 12 inches (300 mm).
Side view Section
Top View
2.4 Insertion Transducer Installation
The W1 type insertion transducers can be installed into metal pipelines via an isolation ball valve
(installation into pipelines of plastic or other materials may require and optional mounting seat). The
maximum pipe diameter in which insertion transducers can be installed is DN1200. The fluid temperature
range of these transducers is -40℃ ~ 130℃. The sensor cable length (5m standard) can be extended to as
long as 30m.
The below figure shows a diagram of the W1 Insertion Transducer. The transducer is attached to its
mounting base (which is welded to the pipe section at the measurement point) via a ball valve. An O-ring
seal is used to seal the probe and to allow for installation or extraction under flowing conditions.