Fema DWR Série Instructions De Montage Et De Service page 25

2. The device must only be used within the electric, hydraulic and thermal limits specified
in the data sheet.
3. Inductive loads can cause contact burns or fuse the contacts. Preventative measures
must be implemented by the customer, e.g. through use of suitable RC elements.
4. When using the version with ZF 1979 (oil and grease-free) take care to avoid reconta-
mination of surfaces that are in contact with media, right through from opening the
packaging to completed installation. Generally, no liability will be assumed for oil and
grease-free.
5. High quality stainless-steel sensor parts in contact with media enable the devices to be
used with a variety of media. However a chemical resistance test MUST be carried out
before selection.
6. Use with acids and other aggressive media , such as hydrofluoric acid, copper chloride,
aqua regia or hydrogen peroxide is not permitted.
7. Use in systems with unstable gases and liquids such as hydrogen cyanide, dissolved
acetylene or nitrogen oxide is not permitted.
8. Devices must be protected from solar radiation and rain.
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