Bronkhorst IQ+FLOW (from 01-07-2013) - Manual (Page 8)

Bronkhorst High-Tech B.V.
IQ+FLOW 9.17.045 8
Compression type fittings
For leak tight installation of compression type fittings make sure that the tube is inserted up to the shoulder in the
fitting body and that no dirt or dust is present on tube, ferrules or fittings. Tighten the nut finger tight; while holding
the instrument, then tighten the nut one turn.
10-32 UNF fittings
Tighten the 10-32 UNF fittings according to the instructions of the
supplier of the fittings.
Only use 1/16” tubing with a straight and clean cut without burrs to
ensure leak tightness. Preferably deburr the tubing prior to
installation. A new ferrule connection must be made for each new
adapter to ensure leak-tightness and minimum dead volume, due to
variances in the adapter dimensions.
Mounting downported instruments
For downported instruments make sure that the seals are present at the bottom, that the surfaces are undamaged
and that they are dry and free from dirt or dust.
2.5 Leak check
Check the system for leaks before applying (fluid) pressure. Especially if toxic or other dangerous fluids are used!
2.6 Electrical connection
Electrical connections must be made with a standard cable or according to the IQ + FLOW® hook-up diagram. Several
hook-up examples and standard cables are found in section 3.
IQ
+ FLOW® instruments are powered with +15…+24 Vdc.
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Electrical connections must be made with standard cables or according to the applicable hook-up diagrams. These
documents can be found at: http://www.bronkhorst.com/en/downloads
The instruments contain electronic components that are susceptible to damage by electrostatic discharge. Proper
handling procedures must be taken during installation, removing and connecting the electronics.
The instruments described in this manual carry the CE-mark and are complient with the EMC requirements.
However compliance with the EMC requirements is not possible without the use of proper cables and connector/
gland assemblies. Bronkhorst High-Tech B.V. recommends the use of their standard cables. These cables have the
right connectors and if loose ends are used, these will be marked to prevent wrong connection. 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 in doubt: contact your distributor.
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.
2.7 Analog / digital operation
Analog operation (single channel versions only)
For analog operation refer to the “Hook-up diagram IQ + FLOW®” or use an RJ-45
loose-end cable (7.03.419) to connect the required signals.