Cleaning The Sample Cell - Teledyne IR7000 Operating Instructions Manual

Ndir gas analyzer
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Maintenance 6
11. Remove the 2 screws from the underside of the Optical Bench
12. Separate the sample cell from the detector using a gentle
NOTE:
13. Loosen but do not remove the 4 screws securing the coupling
14. Separate the sample cell from the IR source using a gentle
Reassemble the optical bench by the reversing the above steps.
During reassembly, make sure that both the sample cell and IR source are
fully seated in the connecting couplers.
WARNING: After servicing any part of the sample circuit, upon reassembly, a
leak check of the sample cell and tubing is required.

6.2.2 Cleaning the Sample Cell

WARNING: The sample cell is a glass tube (Metal Optional) which can be
broken if excessive force is applied to it. The fragments of a broken
sample cell are sharp and can cause serious injury. Use caution
when handling the cell.
1. Clean the Sample cell with soap and water followed by a final
2. Prepare a final rinse solution comprised of:
58
Mounting Plate that secure the IR source holder.
pulling and twisting motion. The cell is held in place with 2 O-
rings. Unless the coupling between the cell and detector is
dismantled, the O-rings should not pull out with the sample
cell.
During reassembly, make sure that the O-rings are not cut or
damaged as the cell is inserted. Make sure that the cell reseats
firmly within the O-rings.
If the instrument is designed for high percentage analysis and there is
no gold colored Sample cell visible, then skip this step and go to Step
# 14.
between the IR source and the sample cell.
pulling and twisting motion. The cell is held in place with 2 O-
rings. The O-rings are held in pockets fabricated in the sample
cell pressure plate. They should not pull out when removing
the sample cell.
During reassembly, make sure that the O-rings are not cut or
damaged as the cell is inserted. Make sure that the cell reseats
firmly within the O-rings.
rinse in de-ionized or distilled water.
Teledyne Analytical Instruments., - Rev. 3
IR7000

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