SIAM DU-1, Руководство по эксплуатации

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Well sounders «DU-1»
4.1. Ball-type Nozzle
The ball-type nozzle (the rubber sphere) is
designed for generating an acoustic impulse when
there is no excessive gas pressure in the annular
space of the well. The ball-type nozzle is made up
of the rubber sphere and the coupling. The ball-
type nozzle is actuated by a violent blow of the
hand on the sphere. An acoustic impulse, sufficient for positive control of
the fluid level in wells up to 600…800 m, is formed. After the acoustic
impulse is generated, the rubber sphere should be kept in the position
which it took immediately after the blow until the value of the measured
level pops up on the screen. The ball-type nozzle is screwed on the well
sounder instead of the retrievable manual valve by using the reduction
sleeve supplied with the device.
4.2 Handle for Installing Well sounder on a Well
The handle is used for convenient installation and deinstallation of
the well sounder on a well. Being significantly long and strong, the handle,
equipped with shackles, allows to tighten the well sounder on the
measuring connection with the sufficient torque.