Figure 12, Flow-through cell – parts – Metrohm 944 Professional UV/VIS Detector Vario User Manual
Page 39
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6 Operation and maintenance
944 Professional UV/VIS Detector Vario (2.944.0010)
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31
Dismantling and cleaning the flow-through cell
NOTE
Ex works, the retaining screws are tightened with a torque wrench. This
guarantees a pressure stability up to 5 MPa (50 bar).
Once the flow-through cell has been opened and closed again, this
maximum pressure stability can no longer be guaranteed.
Prerequisites:
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Rinsing the flow-through cell with solvent was ineffective.
Required tools:
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To open the measuring cell, you need a slotted screwdriver, size 5.
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Seals (6.2764.000).
1 Removing the flow-through cell
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Unscrew the input capillary and the output capillary.
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Loosen and remove the knurled screws.
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Remove the flow-through cell from the optical block.
5
4
3
1
4
3
1
2
6
Figure 12
Flow-through cell – parts
1
Retaining screw
2
Outer seal
3
Lens
4
Inner seal
5
Measuring cell – opening
6
Cell holder