User guide

Configuration 2
Advanced User Guide 53
Front injector/Back injector
The GC supports two models of samplers.
For the 7693A samplers, the GC recognizes which injector is
plugged into which connector, INJ1 or INJ2. No configuration is
needed. To move an injector from one inlet to another requires
no settings: the GC detects the injector position.
To configure the 7693A sampler system, see the 7693A
Installation, Operation, and Maintenance manual.
For the 7683 series samplers, normally the front inlet’s injector
is plugged into the connection on the rear of the GC labeled
INJ1. The rear inlet’s injector is plugged into the connection on
the rear of the GC labeled INJ2.
When a GC shares a single 7683 injector between two inlets, the
injector is moved from one inlet to the other and the injector’s
plug- in on the rear of the GC is switched.
To move the 7683 injector from one inlet on the GC to another
without changing the injector’s plug- in, use the Front/Back tower
parameter.
Solvent Wash Mode (7683 ALS)
This section applies to the 7683 ALS system. To configure the
7693A sampler system, see the 7693A Installation, Operation,
and Maintenance manual.
Depending upon the installed injector and turret, these
parameters may be available to configure multiple solvent wash
bottles usage. If necessary, refer to your injector user
documentation for details.
A, B—Use solvent bottle A if injector uses solvent A washes and
solvent bottle B if injector uses solvent B washes.
A-A2, B-B2—Use solvent bottles A and A2 if injector uses solvent
A washes and solvent bottles B and B2 if injector uses solvent B
washes. The injector alternates between both bottles.
A-A3, B-B3—Use solvent bottles A, A2, and A3 if injector uses
solvent A washes and solvent bottles B, B2, and B3 if injector
uses solvent B washes. The injector alternates between all
bottles.