Memosens CPS16D/76D/96D
Maintenance
Hauser
27
2. Lime, cyanide and metal hydroxide buildup and low solubility organic buildup:
Dissolve buildup with diluted hydrochloric acid (3 %) and then rinse thoroughly with
plenty of clear water.
3.
L
WARNING
Thiocarbamide
Harmful if swallowed. Limited evidence of carcinogenicity. Possible risk of harm to the
unborn child. Dangerous for the environment with long-term effects!
‣
Wear protective goggles, protective gloves and appropriate protective clothing.
‣
Avoid all contact with the eyes, mouth and skin.
‣
Avoid discharge into the environment.
Sulfidic buildup (from flue gas desulfurization or sewage treatment plants):
Use a mixture of hydrochloric acid (3 %) and thiocarbamide (commercially available)
and then rinse thoroughly with plenty of clear water.
4. Buildup containing proteins (e.g. food industry):
Use a mixture of hydrochloric acid (0.5 %) and pepsin (commercially available) and then
rinse thoroughly with plenty of clear water.
5. Readily soluble biological buildup:
Rinse with pressurized water.
‣
Very inert sensors:
Use a mixture that contains hydrofluoric acid and consists of nitric acid (10%) and
ammonium fluoride (50 g/l).
L
WARNING
Hydrofluoric acid
Risk of serious or fatal injury from caustic burns!
‣
Wear goggles to protect eyes.
‣
Wear protective gloves and appropriate protective clothing.
‣
Avoid all contact with the eyes, mouth and skin.
‣
If using hydrofluoric acid, use plastic vessels only.
