Metrohm 930 Compact IC Flex ChS/PP - Manual (Page 104)

7.7 Injection valve
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930 Compact IC Flex ChS/PP (2.930.1300)
Safety shutdown
Function Automatic shutdown upon reaching the pressure limit values
Maximum pres-
sure limit ￭ Adjustable from 0.1 - 50 MPa (1 - 500 bar)
￭ The pump is automatically shut down at the first piston stroke
above the maximum limit value
Minimum pres-
sure limit ￭ Adjustable from 0 - 49 MPa (0 - 490 bar)
￭ The shutdown mechanism is inactive at 0 MPa
￭ The shutdown mechanism becomes active 2 minutes after system
start
￭ The pump is automatically shut down after 3 piston strokes below
the minimum pressure limit
7.7 Injection valve
Actuator switch-
ing time typ. 100 ms
Maximum operat-
ing pressure 35 MPa (350 bar)
Material PEEK
7.8 Suppressor
Resistance to sol-
vents No restriction
Switching time typ. 100 ms
7.9 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)