SIAM DU-1, Руководство по эксплуатации

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Well sounders «DU-1»
7. EQUIPMENT INSTALLATION AND DEINSTALLATION
ORDER
7.1. Preparation of Test Objects for Echometry

Make sure that the valve of the offset and the control manometer
function properly.

Check if the pressure in the tested space corresponds to the
maximum admissible pressure value for the device.

Remove the plug from the elbow. Clean the thread part from dirt,
oil, sand, etc. Make sure that the thread meets the above
requirements. If the thread type does not meet the specifications or
is worn out, or significantly corroded, testing is prohibited.

Clean the inner side of the elbow from paraffin, hydrates, ice, etc.
7.2. Well sounder Installation

Clean and check the thread part of the connecting coupling of the
sensor. If the thread segment is worn out or significantly corroded
or damaged, well sounder installation is prohibited.

Open the valve on the offset for a short period of time (1-2 seconds)
for purging (cleaning from possible condensate, ice, mud and
pother plugs).

Install the well sounder by threading it firmly on the elbow and
tightening it thoroughly to avoid its displacement under pressure.
The minimal tightening torque shall be 200±30 newton meters
(20±3
kilogram-force-meters). For tightening the thread use the
clamps on the threaded connecting coupling and the handle.

Warning! No impact drivers shall be used for tightening.

Turn the valve cap so that the vent hole is in the Push position.

Check the tightness of the nut of the gage outlet valve; tighten it if
it gets loose.

Warning! The valve is to be rotated only if there is no pressure in
the work volume of the gage.