Hitachi L-2100 Instruction Manual page 24

2.5 Assembly
(2) Low-Pressure Gradient System
Connect the inlet tube of eluent to the IN port of the
degasser. Connect the OUT port of the degasser to the IN
port of the proportioning valve. Connect the OUT port of
the proportioning valve to the four-way joint.
Connect the mixer of the pump to port 1 of the injection
valve of the autosampler. Connect port 2 of the injection
valve to the column inlet. Connect the column outlet to the
inlet tube of the detector cell. For washing solution,
provide connection to port 1 of the syringe valve of the
autosampler through the degasser.
Washing solution
system power supply unit
Model L-2400 UV detector
Model L-2300 column oven
Model L-2100 pump
Drain valve
L-2100/2130 pump
Degasser
2 - 12
Eluent
Mixer
Drain
Proportioning valve
Four-way joint
Inlet tube
Detector cell
Column
Injection valve
Syringe valve