
GDS-68XP Operation & Maintenance Manual, Revision 3.5
Page 65
16
SEQUENCER
SETTINGS
(DIP
SWITCH
VERSIONS)
Earlier
versions
of
the
GDS
‐
68XP
sequencer
board
utilized
a
DIP
SWITCH
to
set
sequence
timing
values.
For
reference,
the
settings
found
in
earlier
units
are
shown
below:
Sequence
Number
DIP SWITCH
Setting (1-2-3-4
1
)
Sample
Time
Purge / Hold
Time
Total Cycle Time
(Approximate)
0
000 1
On-Demand Sequence
30 min
1
2
001 1
1-5 min
5 min
5-7 min
2
2
010 1
1-5 min
10 min
15 min
3
011 1
1-5 min
20 min
30 min
4
3
100 1
1-5 min
50 min
1 hour
5
101 1
1-5 min
110 min
2 hours
6
110 1
1-5 min
230 min
4 hours
7
111 1
1-5 min
350 min
6 hours
NOTE
1
:
DIP
SWITCH
#4
IS
USED
FOR
FACTORY
SETUP
AND
SHOULD
ALWAYS
BE
LEFT
ON
.
NOTE
2
:
SEQUENCE
1
&
2
ARE
FOR
TEST
PURPOSES
AND
SHOULD
NOT
BE
USED
WITH
ACTUAL
SAMPLES
NOTE
3:
RECOMMENDED
MINIMUM
FOR
MOST
APPLICATIONS;
RECOMMENDED
MINIMUM
SEQUENCE
FOR
MERCAPTANS
AND
THT
IS
FOUR
HOURS
(“1101”)