Metrohm 872 Extension Module - Manual (Page 70)

8.7 Injection valve
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872 Extension Module IC Module
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 only becomes active 2 minutes after sys-
tem start
￭ The pump is automatically shut down after 3 piston strokes below
the minimum pressure limit
Gradient capacity Isocratic or gradient (extendable to quaternary)
Profile Step, linear, convex and concave
Resolution < 1 nL/min flow increments
8.7 Injection valve
Actuator time typ.100 ms
Max. operating
pressure 35 MPa (350 bar)
Material PEEK
8.8 Interfaces
Auxiliary 1 DSUB plug 15-pin (female)
Analog Output Analog Output (optional)
8.9 Safety specification
Design / testing ￭ EN/IEC 61010-1
￭ UL 61010-1
￭ CSA-C22.2 No. 61010-1
￭ Protection class III