BAS LC-4C, Instruction Manual

Page: 34 / 56

DIP SWITCHES
The LC-4C has two eight-position dip switches for setting certain gain ranges and defaults.
Switches A to E set the default gain range of the working electrode. Dip switch F is not
used. The default gain range is automatically set at power-up, and will be in effect until a
change is made with the RANGE control. The factory-set default gain range is 0.5
µ
Afs. You
may want to reset this default to the gain at which you typically work. Then the LC-4C will
automatically re-equilibrate after a power outage. Dip switch positions are as follows:
Power-up Dip switch position
gain A B C D E
0.1 nAfs DN DN DN DN DN
0.2 nAfs UP DN DN DN DN
0.5 nAfs DN UP DN DN DN
1.0 nAfs UP UP DN DN DN
2.0 nAfs DN DN UP DN DN
5.0 nAfs UP DN UP DN DN
10 nAfs DN UP UP DN DN
20 nAfs UP UP UP DN DN
50 nAfs DN DN DN UP DN
0.1
µ
Afs UP DN DN UP DN
0.2
µ
Afs DN UP DN UP DN
0.5
µ
Afs UP UP DN UP DN
1.0
µ
Afs DN DN UP UP DN
2.0
µ
Afs UP DN UP UP DN
5.0
µ
Afs DN UP UP UP DN
10
µ
Afs UP UP UP UP DN
20
µ
Afs DN DN DN DN UP
50
µ
Afs UP DN DN DN UP
All other settings of A to E are invalid and will cause the gain display to go blank.
The factory-set default gain range for monitoring the output of the generator electrode (Igen)
is 10
µ
Afs. The default can be reset with the following positions of dip switches G and H:
Gain Dip switch position
range G H
100 nAfs UP UP
1.0
µ
Afs UP DN
10
µ
Afs DN UP
Invalid DN DN
The invalid switch setting will cause the decimal point and units to be suppressed on the
Igen
display.
The bottom set of dip switches (marked I to P) allows the user to choose the power-up de-
fault filter setting for the working electrode, the PC remote channel number, and a remote en-
able.
Section 4. Operating the Electrochemical Detector
29
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