Valve INV-907
Instructions 56-8101-01 Edition AC
6
Reference information
Description
The valve consists of two main parts:
• Housing which
encloses
the motor and
electronics.
• Valve body with
a rotating
central core.
As the channel
plate is turned by
the motor, different ports are connected.
Valve switching is controlled from
UNICORN by reading the actual position of
the channel plate.
The geometry of the valve assures that
the flow path is completely swept so that
solvent or sample ”memory effect” is virtually
non-existing. The valve rotates the shortest
way to the next position (max. 180°).
The material used in the switching parts
ensures both long mechanical and chemical
lifetime.
The valve housing contains no user
replaceable items.
Technical specifications
Operating data
Max Flow rate
100 ml/min
Max Pressure
25 MPa (250 bar, 3600 psi)
Back pressure
<50 kPa at 100 ml/min with water
Leakage
< 0.1 µl/min at 25 MPa
pH stability range
1–13, 1–14 (<1 day exposure)
Viscosity
Max. 5 cP
Switch time
<260 ms between two
adjacent positions
Operating life time >50 000 cycles, two
adjacent positions
Environment
+4 to +40 °C
20-95% relative humidity
84-106 kPa (840-1060 mbar)
atmospheric pressure
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
9 µl
Flow channel
diameter
0.8 mm
Valve principle
Motor controlled valve
Functions
Switching 3 positions controlled
from UNICORN
Degree of
protection
IP 43
Wetted materials
PEEK (polyetheretherketone)
Chemical
resistance
The wetted parts are resistant to
organic solvents and salt buffers
commonly used in chromatography
of biomolecules, except
100% ethylacetate, 100% hexane
and 100% tetrahydrofuran (THF)
Power requirement
32 V DC ±10% from the system
pump
Power consumption
Up to 9 W
UniNet 2 address
0–9
Inlet and outlet tubing
UNF 10-32 2B ”Fingertights”
for capillary tubing 1/16”
outer diameter
Dimensions,
H x W x D
135 x 80 x 120 mm
Weight
1.2 kg
EMC Standards
This product meets the
requirement of the EMC Directive
89/336/EEC through the
harmonized standards
EN 50081-1 (emission) and
EN 50082-1 (immunity)
Note: The declaration of
conformity is valid for the
instrument when it is
• used in laboratory locations
• used in the same state as it
was delivered from Amersham
Pharmacia Biotech except for
alterations described in the
user manual
• connected to other CE labelled
Amersham Pharmacia Biotech
instruments or other products
as recommended.
3
INV-907
Housing
Valve
body
56-8101-01_AC.qxd 1998-10-26 11:45 Sida 6 (1,1)
