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8014084/ZWT7/V3-1/2020-06 | SICK
O P E R A T I N G I N S T R U C T I O N S | TRANSIC111LP
Subject to change without notice
MAINTENANCE
7
7.1.2
Cleaning the optical components
Check the signal strength.
●
Maintenance of the TRANSIC111LP
●
Maintenance warning
●
Error signal that indicates excessive light loss in the sensor.
Inquiry via keypad,
see “Signal intensity (SIL)”, page 36
Using solvents to clean the optical components
When using solvents to clean the optical components, ensure the solvent used is
compatible with the sealing material of the sensors.
Cleaning the mirror and lens
Fig. 39: Location of the mirror in the oxygen measuring probe
Fig. 40: Location of the lens in the oxygen measuring probe
1
Remove the filter. Instructions,
see “Cleaning the filter”, page 88
2
Use a jet of clean air to clean loose particles off the mirror (instrument air or better).
Continue with step 3 when the optics are still contaminated.
3
Tip distilled water with soap mixed in onto the mirror and let it work.
4
Then rinse with distilled water.
5
Dry with compressed air (instrument air or better quality).
6
If the surface is still contaminated, tip pure ethanol or isopropanol onto the surfaces. Let
the chemicals work in for maximum 15 minutes.
NOTICE:
SICK recommends cleaning the optical components when the signal
intensity is below 80%.
NOTICE:
Do not damage the lens
The lens is located in a ø 11.5 mm cavity and is hard to reach. (See arrow in
)