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GE Healthcare Valve INV-907 Instructions ÄKTA ™...
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– connected to other CE-marked GE Healthcare instruments, or – connected to other products recommended or described in this manual, and – used in the same state as it was delivered from GE Healthcare except for alterations described in this manual. Recycling...
Introduction 1 Introduction Valve INV-907 is a motorised rotary 7–port valve. The valve is used in ÄKTA™design chromatography systems. It is powered from the ÄKTAdesign P-900 series system pump, and is controlled from UNICORN™ control system. The valve has 3 positions used for: loading a sample loop injecting the sample onto the column washing the system pump.
Installation 2 Installation CAUTION! Before connecting Valve INV-907 ensure the power is switched OFF at the system pump or the complete system. Unpacking Unpack the valve and check the items against the packing list. Inspect the items for obvious damage which may have occurred during transportation. Installing the valve 1 Connect the valve with two UniNet cables as a part of the UniNet 2 chain.
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2 Installation 6 When used as an injection valve connect the tubing as follows: Port Connect to Column inlet Sample loop or bottom tubing of Superloop Injection port Waste Waste Sample loop or top tubing of Superloop Outlet of the pump 7 When used as an upflow/downflow valve, connect the valve as indicated in the user documentation of your ÄKTAdesign chromatography system.
Operation 3 Operation The valve is controlled from UNICORN. When used as an injection valve use the instruction InjectionValve in System Control:Manual:Flowpath. The valve can be set in 3 positions: • LOAD position 1 (home position) • INJECT position 2 •...
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3 Operation Manual sample loading The sample loop and Superloop can be loaded with a syringe. Connect Superloop with the bottom tubing connected to port 2 and the upper tubing to port 6. For large volumes use a luer female/1/16” male union connected to port 3.
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Operation 3 Two techniques can be used for filling the sample loop; partial or complete filling. Type of filling Volume to load Partial filling max 50% of the sample loop volume Complete filling 2–5 times the sample loop volume Partial Filling Partial filling is used when high recovery is required.
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3 Operation Complete filling In this method a surplus of sample is used to ensure that the sample loop is filled completely, allowing reproducible sample volumes. In preparative applications the sample volume should be at least 2 times the volume of the sample loop.
Follow local regulations and instructions for safe operation and maintenance of the system. CAUTION! Only spare parts approved or supplied by GE Healthcare may be used for maintaining and servicing the valve. Period...
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4 Maintenance 3 Slide the screws out. 4 Remove the distribution plate containing the ports. 5 Remove the old channel plate and insert a new one. 6 Remount a new distribution plate so that the text 3 is horizontal and to the right of the central tubing connection.
Troubleshooting 5 Troubleshooting If the suggested actions do not correct the fault, call GE Healthcare. Fault Action The valve is not switching 1 Check the connection to the pump. The valve should be connected to the UniNet 2 socket, not the UniNet 1 socket.
Reference information 6 Reference information Description Housing The valve consists of two main parts: Valve body • Housing which encloses the motor and electronics. IN V- 90 7 • Valve body with a rotating central core. As the channel plate is turned by the motor, different ports are connected.
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6 Reference information Physical data Internal volume Pos 1 LOAD Port 1–7 9 μl Port 2–3 5 μl Port 4–6 8 μl Pos 2 INJECT Port 1–2 7 μl Port 3–5 6 μl Port 6–7 9 μl Pos 3 WASH Port 2–4 8 μl Port 5–7...
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Reference information 6 Accessories and spare parts Item Quantity per pack Code no. Valve INV-907 including one UniNet cable (fill port, needle and syringe holder are not included) 18-1108-40 Injection kit INV-907 including fill port needle and syringe holder 18-1110-89 Valve kit INV-907 including channel plate and distribution plate...
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