Setting the delay volume
The delay volume between the UV monitor and Fraction Collector Frac-920 in your ÄKTA
chromatography system can be set. The fraction marks shown in UNICORN will be ad-
justed according to this volume to show the actual parts collected.
1
Select menu System Control:System: Settings:Specials in UNICORN.
2
To change the settings, select the instruction FracParameters.
3
Enter the new delay volume value. The appropriate value for your particular system
is found in the Reference information, a chapter in the System Manual of your ÄKTA
chromatography system. Refer also to the ÄKTA design Optional Configuration User
Manual.
4
Click on the OK button. The value entered will be used until a further change is made.
4.3 Fraction Collector Frac-950
CAUTION
Pinch hazard. Do not have any part of your body within the unit
base area when Fraction Collector Frac-950 is switched on. An
automatic calibration process starts when Fraction Collector
Frac-950 is connected to UNICORN. During calibration, the dis-
penser arm moves rapidly. Several beeps are heard before the
calibration procedure starts.
CAUTION
Be sure to fold down the safety bar whenever the rack holder is
operated by hand. This blocks the rack holder from accidentally
moving while the rack is moved by hand or replaced. (Fraction
Collector Frac-950 only)
NOTICE
The DropSync unit will be damaged if it is positioned below the
tube rims.
Turn on the Fraction Collector Frac-950 using the Power switch at the rear panel. The
Fraction Collector Frac-950 now performs a self-test.
There is one green and one yellow indicator on the front of Fraction Collector Frac-950.
Frac-920 and Frac-950 Operating Instructions 28-9622-09 AC 39
4 Operation
4.2 Fraction Collector Frac-920 connected to an ÄKTA instrument
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