User`s guide

Appendix C-2
Twin-pump Systems Appendix C
Two Possible Cases:
- A system of mirror pumps controlled by a 305
Master pump.
- A system of mirror pumps controlled by a com-
puter and a Gilson System Controller software.
When using a computer with a HPLC System
Controller software, the identity numbers for the
pumps can be chosen between 0 and 63.
When using a 305 as a master, the follow-
ing identity numbers must be used.
- Pumps A 1
- Pumps B 2
- Pumps C 3
- Pumps Inj 4
The requirements for a parallel
system are:
- All pumps must be Model 305 or
306.
- Each pump in parallel, (A + A’, B
+ B’, etc...), must have the same
headsize.
- Each pump in parallel must have
the same GSIOC identity number,
e.g. A and A’ pumps must be 1.
Diagrams of the electrical connec-
tions for the GSIOC cables are
given in the opposite figures.
pump A
1
M S
pump B
2
M S
pump C
3
M S
pump D
4
M S
pump A'
1
S
pump B'
2
S
pump C'
3
S
pump D'
4
S
305 305 305 305
306
306 306 306
S M
pump D
S M
pump C
S M
pump B
506/621
Interface
Computer
with 712
or 714
software
S
pump A'
S
pump B'
S
pump C'
S
pump D'
S M
pump A
305s
306s
M represents the GSIOC to
SLAVE socket.
S represents the GSIOC FROM
CONTROLLER socket.
Two Possible Cases