Warnings Concerning High Pressure - BEAMEX MC5-IS User Manual

General

Warnings Concerning High Pressure

High pressure is always dangerous. Only personnel with good
experience and knowledge of high pressure liquid, air and ni-
trogen operations are allowed to work with the module. Read
carefully all these instructions and local safety instructions for
high pressure operations before starting the use.
When using gas, the system must not contain any liquid, espe-
cially if you do not know how they may react under pressure.
Use of clean air or nitrogen is recommended as gaseous pres-
sure media. Liquid pressure media should be preferred when
using modules with a pressure range of 60 bar (30000 psi) or
more.
If you use nitrogen, minimize the leak to the atmosphere and
take care of sufficient ventilation. Close the valve of the nitro-
gen cylinder, when the system is not in use. Increase in the
percentage of nitrogen in the ambient air may cause uncon-
sciousness and death without warning. Read carefully the
safety instructions for nitrogen and make sure that the other
people in the same space are aware of the danger.
Use of liquid pressure medium is recommended with pressure
measurement modules at higher pressure range. Use water or
suitable hydraulic oil. Check that the used liquid is not aggres-
sive against the materials used in the transducer or tubing.
When using liquid, minimize the amount of air in the system.
So you can minimize the amount of spilled liquid in case of
leakage.
Do not use the same tubing with different liquids or gases.
Check what the local regulations say about construction and
use of pressurized vessels. The regulations normally control
construction and use of systems where the product of the pres-
sure and volume exceeds a certain limit. The volume of this
system depends on the instrument connected to it.
High pressure gas is dangerous because it can break the con-
tainer and the flying splinters may cause injury. Also small leaks
of gas may be dangerous because the high velocity of the leak-
ing gas jet enables penetration through skin. If a gas bubble
gets into the blood circulation, it can cause death. The leak jet
is particularly penetrative, if some liquid is coming with the
gas.
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