MASS-STREAM
TM
Instruction Manual D-6200
9.17.112A – Date of issue: 2017-03
Page 7 off 12
1.2 Installation
To avoid personal injury and/or damage to the equipment only trained and qualified
personnel shall perform the installation of the instruments:
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Read the instrument’s name plate before installation and check the electrical
connection, flow range, media to be measured, inlet and outlet pressure as well as
input and output signals.
−
The instruments contain electronic components which are sensitive to electronic
discharges (ESD). Contact with electronically charged persons or objects could
possibly endanger these components or even result in their failure.
−
While installing the instrument take care of the arrow marking on the instrument’s flow
body, determining the flow direction.
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Ensure that all piping is absolutely clean and without any damage. It is recommended
to install an inlet filter in front of the instrument.
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Avoid piping with small diameter at high flow rates. When possible no abrupt angles or
other disturbances shall be mounted directly in front of the instrument.
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All devices have Withworth pipe threads – type RP – according to ISO228-1
(cylindrical G-threads in inches according to BSPP). The mounting of NPT-fittings will
destroy the inlet threads in the instrument’s body.
−
Using an inlet pipe with sufficient piping diameter is recommended. The length of the
inlet pipe should be at least 10 times the piping diameter.
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Before the first start-up check that the system has absolutely no leakage. If toxic,
explosive and/or corrosive gases are to be used, ensure to purge the system long
enough with a dry, inert gas. This is also required to remove these kinds of gases from
the system.
−
The instruments’ preferred mounting position is horizontally. Especially when installing
bigger mass flow controllers (D-6273 and bigger) in different ways you should get in
contact with your distributor or M+W Instruments GmbH beforehand.
