6 | Software
Büchi Labortechnik AG
40/62
Operation Manual Sepiatec SFC-250
No.
Name
Description
5
Column Compartment
Temperature in the column oven in °C.
6
Postheater
Temperature at the gas-liquid-separators in
°C.
7
Fraction Module
Temperature at the gas-liquid-separators in
°C.
8
ELSD Temperature
Temperature for the ELSD in °C.
9
Syringe Size
Syringe volume in ml or µl .
10
Loop Size
Injection loop volume in ml.
11
Use ELSD
Switches the ELSD on or off.
6.6.1
Controlling the back pressure
The button controlling the back pressure regulator is in the top right-hand corner.
The white field shows the status of the back pressure regulator.
Navigation path:
➔
SYSTEM
Precondition:
R
Instrument is running. Displayed BPR status:
BPR is active.
u
Tap the
[RELEASE]
button.
ð
The valve opens and release the pressure in
the system. BPR status changes to BPR is
open.
Precondition:
R
Displayed BPR status: BPR is open.
u
Tap the
[CONTROL]
button.
ð
The valve close and activates the back
pressure regulation. BPR status changes to
BPR is active.
6.6.2
Controlling the CO₂ valve
The button controlling the CO
2
valve is located in the middle. The white field shows
the status of the CO
2
valve.
Navigation path:
➔
SYSTEM
Precondition:
R
Displayed CO
2
VALVE status: Closed.
u
Tap the
[OPEN]
button.
ð
The valve opens. CO
2
VALVE status changes to
Open.
