9 injection valve, 10 suppressor, 11 peristaltic pump – Metrohm 940 Professional IC Vario ONE/SeS/PP/Prep 3 User Manual
Page 123: Injection valve
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7 Technical specifications
940 Professional IC Vario ONE/SeS/PP/Prep 3 (2.940.1530)
￭￭￭￭￭￭￭￭
113
Gradient capabil-
ity
Isocratic or gradient (extendable to quaternary)
Profile
Step, linear, convex and concave
Resolution
< 1 nL/min
7.9
Injection valve
Actuator switch-
ing time
typ. 100 ms
Maximum operat-
ing pressure
35 MPa (350 bar)
Material
PEEK
7.10
Suppressor
Resistance to sol-
vents
No restriction
Switching time
typ. 100 ms
7.11
Peristaltic pump
Type
2-channel peristaltic pump
Direction of rota-
tion
Clockwise/counterclockwise
Rotational speed
0 - 42 rpm in 7 levels of 6 rpm each
Pumping charac-
teristics
0.3 mL/min at 18 rpm; with standard pump tubing (6.1826.420)
Pump tubing
material
Recommended: PharMed® (Ismaprene)
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