Schambeck SFD GmbH
Refractive Index Detector RI2012
RI2012 V1.0 06-2013.EN / 28.10.2013
12
http://www.schambeck-sfd.com
9.2 T
HE
A
UTO
Z
ERO
B
UTTON
By pressing the
AutoZero
button the detector signal is internally set to Zero. To return to the
formel (unmodified) signal, press the
AutoZero
button for approx. three seconds.
9.3 T
HE
P
URGE
B
UTTON
To flush the reference chamber of the flow cell with mobile phase press the
PURGE
button
once. If the purge mode is activated a red LED will light up. Press the
PURGE
button once
again to deactivate the purge mode. Now the mobile phase will flow only through the
sample chamber of the flow cell.
9.4 T
HE
B
UTTON
P
OL
+/-
By pressing this button the polarity of the detector signal will be changed. A negative signal
like e. g.
– 5mV will be transformed into a positive 5 mV when the polarity mode is
activated. A red LED will light up when this mode is activated.
9.5 T
HE
B
UTTONS
A
RROW
L
EFT
(
◄)
AND
A
RROW
R
IGHT
(
►
)
This arrow buttons have several functions. If only one button is pressed you can change the
settings of one parameter to smaller (
◄
) or bigger (
►
) values. If both buttons are pressed
together for about three seconds the detector will be set to the service mode.
9.6 T
HE
B
UTTONS
A
RROW
U
P
(
▲)
AND
A
RROW
D
OWN
(
▼)
If different options for one parameter are available you can select the desired option by
using these arrow buttons.
ArrowUp
(
▲
) will switch to higher values and
ArrowDown
(
▼
) to
smaller values.
If the marker function is activated you can send a marker signal to the recorder output by
pressing the
ArrowUp
(
▲
) button (
see chapter 14.8
).
9.7 T
HE
M
ENU
B
UTTON
By pressing this button you can select a special sub menu or discard changes you
performed on a parameter.
