Bronkhorst IQ+FLOW (till 01-07-2013) - Manual (Page 7)

9.17.045 page 7
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 pressure. Especially if toxic, explosive 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 chapter 3.
IQ + FLOW® instruments are powered with +15…+24 Vdc.
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.