Bronkhorst MASS-VIEW Series - Manual (Page 11)

BRONKHORST HIGH‐TECH
9.17.051 MASS‐VIEW® series Page 11
2.3 Mounting
The mounting position of the MASS‐VIEW
®
is vertical, although it is possible to turn the device 180° and
change the display setting. Avoid installation in close proximity of mechanic vibration and/or heat
sources.
2.4 In-line filter
2.5 Fluidic connections
The MASS‐VIEW
®
can be equipped with (compression) fittings. Tighten the nut finger tight; while
holding the instrument, then tighten the nut 1 turn. If applicable follow the guidelines of the
manufacturer of the fittings. While tightening fittings, do not apply excessive force, in order to avoid
damaging in/output thread or other sensitive parts of your instruments.
Please be aware when using Oxygen (O
2
) that the fittings mounted to the body should be absolutely
oxygen clean.
2.6 Piping
Be sure that piping is absolutely clean!
DO NOT install small diameter piping on high flow rates, because the inlet jet flow will affect the
accuracy.
DO NOT mount abrupt angles direct on in‐ and outlet, especially not on high flow rates. At least 10 pipe
diameters distance between the angle and the instrument is recommended.
DO NOT mount pressure regulators direct on the inlet of gas flow meters/controllers, but allow some
meters of piping (at least 25 pipe diameters).
2.7 Electrical connections
The MASS‐VIEW
®
instruments are powered with +15 Vdc to +24 Vdc.
When providing your own power supply be sure that voltage and current rating are according to the
specifications of the instrument(s) and furthermore that the source is capable of delivering enough
power to the instrument. Refer to Hook‐up MASS‐VIEW
®
series (document nr. 9.16.085) for more
details.
When using other cables, cable wire diameters should be sufficient to carry the supply current and
voltage losses must be kept as low as possible.
When connecting the system to other devices (e.g. to PLC), be sure that the integrity of the shielding is
not affected. Do not use unshielded wire terminals.
Although the gases to be measured should be absolutely free of dirt, oil, moisture and other particles,
it is recommended to install an in‐line filter upstream of the flow meter / controller, and if backflow
can occur, a downstream filter is recommended too. Be aware of the pressure drop caused by the
filter.
Always check your system for leaks, before applying fluid pressure. Especially if toxic, explosive or
other dangerous fluids are used.
We recommend using our standard cables. These cables have the right connectors and if loose ends
are used, these are coloured and marked to prevent improper connection.
All cabling options can be purchased online
www.massflow‐online.com