ECP2050
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S
ET
P
ISTON
B
ACKWASH
1. Inlet part; 1a. Luer cone for connecting to washing head; 1b. Flowrate regulator; 1c. Lid GL45 with plug;
1d. Luer cone for connecting syringe; 2. Connection of washing heads; 3. Outlet into waste system;
4. Syringe 50ml
4.5.1. Simple Manual Use
Connect both
Washing heads
in series using tubing and LUER adapters. Fill syringe with
HPLC water (or mobile phase dissolving buffers) and wash the heads. Washing heads are now
filled with liquid, rinsing the pistons from rear side. Now once in a while during work with the pump
push through the pump some liquid to the washing system (approx. 1x per hour 5 ml).
4.5.2. Automatic Backwash
Connect both
Washing heads
in series using tubing and LUER adapters. Insert tubing with
flow regulator into reservoir with HPLC water (or mobile phase dissolving buffers). Loosen the flow
regulator and suck liquid into the system using plastic syringe connected to the other end of the
system (left picture). Disconnect the syringe and place the tubing end into waste reservoir. Now the
liquid is flowing through the system by gravity (right picture). Set the flow regulator so that at the
end of the tubing escapes approx. 5-7 drops per minute.
