Waters Corporation
Waters 2690/5 USER
& TROUBLESHOOTING GUIDE
Contents青春背景图
诤谏2690/5 Theory
Setup procedures. Troubleshooting the 2690/5 Ur maintenance of the 2690/5
Spare Parts
2690/5 Theory
2690/5 Solvent Management Flow Path
2690/5 Theory
The solvent management system components work together to deliver solvent in the following quence.美术游戏
1. The accumulator plunger (left plunger) moves forward delivering solvent,
while the primary plunger (right plunger) moves backwards filling with
solvent.
中秋节活动主题
2. While the accumulator continues to deliver solvent, the primary plunger
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waits. The primary pressure transducer then measures the pressure and matches it to the system
pressure by moving the primary plunger forward, pre-compressing the solvent.
3.When the accumulator plunger reaches the end of its stroke, it slows down and revers direction.
Simultaneously, the primary plunger moves forward delivering solvent.
4.While the accumulator plunger moves backwards, the primary plunger moves forward slightly
faster which allows the primary plunger stroke to both fill the accumulator piston chamber and to deliver solvent to the rest of the system
This quence enables the solvent management system to maintain a consistent and pul-free manner.
2690/5 Theory
2690/5 Sample Management System Theory
易中天女儿2690/5 Injection Cycle
牵一发而动全身
The injection cycle is completed in three steps.
1.Isolation of the loop.
Valve 1 clos.
Needle wash pump turns on.
Valve 4 opens.
Needle moves into the bottom al.
Valve 3,2 open venting the loop to atmospheric pressure.
2.Sample withdrawal.
众寡悬殊
Valve 3 clos
Needle wash pump turns off. Valve 4 clos.
Needle moves into the vial.
Syringe moves withdrawing sample.
Needle moves to the bottom al.
3.Sample injection.
Valve 3 opens. Valve 2 clos.
Needle moves into the stream.
Valve 1 opens. Sample is injected.
Syringe moves home. Valve 3 clos
