MASS-STREAM
TM
Instruction Manual D-6300
9.17.104B
– Date of issue: 2018-12
Page 10 off 34
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. Especially when installing
bigger mass flow controllers (D-6371 and bigger) in different ways you should get in
contact with your distributor or M+W Instruments GmbH beforehand.
ATTENTION!
In the event of power loss or when unplugging the main connector the instrument will be
reset into factory settings (=delivery condition).
All instruments described in this manual carry the CE-mark. Therefore they have to
comply with the EMC requirements valid for these instruments. However compliance with
the EMC requirements is not possible without the use of proper cables and
connector/gland assemblies.
In case the instrument is connected to other devices (e.g. power supply) ensure that the
operating voltage complies with the supply voltage given on the name plate and that the
function of the shielding is not affected. M+W Instruments GmbH recommends using
standard cables following the CE-requirements and could supply them when needed.
