1 the bnc connectors, 2 the d shell connectors – INFICON Composer Gas Concentration Controller User Manual
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Composer Operating Manual
1.10.2.1.1 The BNC Connectors
Because complete BNC cables are so common, there are no mating connectors
supplied in the ship kit for the Controller’s source and recorder outputs. It is
recommended that completed BNC type cables be purchased locally, even if
one end is cut off for connection to the external apparatus.
1.10.2.2 The D Shell Connectors
The D shell connectors use solder cup contacts that will accept solid or
stranded wire with a maximum individual wire size of 20 AWG. Multiple stranded
wire jumpers may equal 18 AWG, or two 22 AWG wires may be employed. The
recommended wire strip length is 1/4" (6.4 mm).
See
.
The duplex tin/lead solder cup readily accepts tinned leads and will securely
strain-relieve wires when properly soldered.
The American National Standards Institute Standards For Soldering Electronic
Interconnections (ANSI/IPC-S-815A) is recommended for establishing
soldering quality guidelines.
The soldering procedure is as follows:
1
Obtain a connector and wire(s) of the type and size required for your
application.
2
Ensure that surfaces to be soldered are clean and free of any contaminants
that may inhibit solderability.
3
Strip wire(s) to recommended strip length of 1/4" (6.4 mm). Tin the leads if
required.
4
Obtain resin flux, 40/60 alloy solder, and a low-wattage soldering iron.
NOTE: It is common to use heat shrink tubing over solder joints to insulate the
exposed solder connection at the cup. If using heat shrink tubing,
ensure that the tubing sections are cut to proper length and placed on
the wire(s) prior to soldering. After wires are terminated, slide tubing
over solder connections and shrink with an appropriate heat source.
5
Coat the stripped portion of the wire(s) with the flux and insert into the solder
cup of the contact until the conductor is bottomed in the cavity.
6
Heat the solder cup with the soldering iron and allow the solder to flow into
the cup until the cavity is filled but not over filled.
7
Continue soldering wires until all termination’s are complete.
8
Clean the soldered connections with a suitable alcohol/water rinse to
remove flux and solder residue.