WIKA MH-3 Mode D'emploi page 14

8. Dismounting, return and disposal
8.2 Return
Strictly observe the following when shipping the instrument:
All instruments delivered to WIKA must be free from any kind of hazardous substances
EN
(acids, bases, solutions, etc.) and must therefore be cleaned before being returned.
WARNING!
Physical injuries and damage to property and the environment
through residual media
Residual media in the dismounted instrument can result in a risk to
persons, the environment and equipment.
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When returning the instrument, use the original packaging or a suitable transport
packaging.
Information on returns can be found under the heading "Service" on our
local website.
8.3 Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an environmentally
compatible way and in accordance with the country-specific waste disposal regulations.
Do not dispose of with household waste. Ensure a proper disposal in
accordance with national regulations.
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With hazardous substances, include the material safety data sheet for
the corresponding medium.
Clean the instrument, see chapter 7.2 "Cleaning".
WIKA operating instructions, OEM pressure sensor, model MH-3