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Appendix
8
Appendix
8.1
Chemical resistance
The following table shows the resistance of the surfaces (keypad, display, touch screen) to the listed
chemicals.
For the keypads EMP-H502 ... EMP-H520, Lenze offers protective foils with an improved resistance
against the mentioned chemical products.
$ $ $ $
Substance
Acetic acid
Acetone
Ammonia
Benzene
Benzole
Benzyl alcohol
Diesel oil
Ethanol
Ethylene glycol
Formic acid
High pressure and
temperature > 100 °C
Hydrochloric acid
Hydrogen peroxide
Hypochlorous acidic natron
Isopropanol
Methanol
Methylene chloride
Mineral acids
94
Stop!
The surfaces do not resist acidic food (e.g. tomato juice, lemon juice) very well.
We therefore recommend to clean off these marks immediately, otherwise the
surface can be damaged.
≥ 5 % < 50 %
≥ 2 %
≥ 50 %
≥ 10 %
≥ 25 %
≥ 20 %
concentrated
EDBEPM-H520 DE/EN/FR 4.0
Keypad
EPM-H310
EPM-H410
EPM-H315
#
#
#
—
—
—
☺
#
☺
☺
—
—
☺
☺
#
#
#
#
—
—
—
—
#
#
—
—
—
—
☺
☺
☺
☺
—
—
—
—
EPM-H502, EPM-H505
EPM-H510, EPM-H520
without
with
protective
protective
foil
foil
#
☺
#
☺
#
#
#
☺
#
☺
#
#
☺
☺
#
☺
#
—
#
#
#
#
#
#
#
#
#
#
#
☺
#
—
#
#
#
#
L
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