MASS-STREAM
TM
Instruction Manual D-5100
9.17.111A
– Date of issue: 2017-03
Page 7 off 11
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:
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.
Ensure that the gas is absolutely clean and dry. The mounted laminar discs are an
essential part of the calibration and not an inline filter.
All piping needs to be absolutely clean and without any damage.
It is recommended to install an inlet filter in front of the instrument. In case of an
applied inline filter it needs to regularly checked and appropriately cleaned.
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.
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.
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.
