Aplisens MS-100 Manual do utilizador - Página 5

Procurar online ou descarregar pdf Manual do utilizador para Instrumentos de medição Aplisens MS-100. Aplisens MS-100 8 páginas. Industrial pressure gauges (manometers); pressure gauges with diaphragm seals

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6. INSTALLATON AND CONNECTION

Manometers shall be installed in socket appropriate to the connector type or on the valve.

In the case of thread differences between manometers and valves or fitting sockets (e.g. ½" and

M20x1.5), an appropriate transition connector should be used.

If measuring the pressure of aggressive media, a separating container with inactive fluid should be

used (not interacting with the medium).

When measuring pulsating pressures (piston pumps, compressors, etc) install a chamber vibration

damper or siphons to eliminate vibration of the manometer hand.

When measuring steam pressure a siphon pipe should be installed in order to condense it so that

fluid enters the gauge; otherwise hot steam might cause damage.

Manometers should be vented after installing.

Depending on the manometers construction venting can perform in the following way:

- housing of a pressure gauge with a vent valve – by a vent valve;

- housing of a pressure gauge with a rubber stopper - make the venting hole in a

stopper;

- building self-venting - venting is achieved by diaphragm installed in a housing of a

pressure gauge.

In order to enable carrying out such works as indication inspection, tightness

inspection or hand return to 0, an appropriate three-way valve must be used.

Pressure may only be applied after ensuring that a manometer with measuring range

corresponding to the measured range has been installed, the seals properly selected

and all threaded connections properly tightened.

Attempting to unscrew the fixing outlets of a manometer under pressure may lead to

leakage of the fluid being measured and subsequent risk to the personnel.

When disassembling the manometer it must be cut off from the process pressure or the

pressure must be reduced to atmospheric pressure. Pay utmost attention and

undertake precautions in the case of aggressive, caustic, explosive and any other

hazardous media.

If necessary flush that part of the installation.

Manometers with flange diaphragm seals must be installed on corresponding flanges on the

objects.

It is recommended to match materials used for screw joints with respect to the pressure,

temperature, flange material and selected sealing in such a way as to obtain a tight

connection in the predicted working conditions.

Additional data regarding diaphragm seals are available in the catalogue cards "Diaphragm

seals".

IO.MS-100.01(EN)