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Operator Terminal System Manual - 11276916.pdf

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Appendix<br />

11 Membrane keypad<br />

Harmful<br />

substances The operator terminal may not get in contact with the following substances.<br />

Substances that do not change colors<br />

Substances that may change colors<br />

Strong mineral acids<br />

Strong caustic solutions<br />

High pressure vapor with a temperature of more than 100°C<br />

Benzyl alcohol<br />

Dichloromethane<br />

Autotext will not change colors when being exposed to the following substances for<br />

24 hours at a temperature of 50°C:<br />

Top Job Grape juice Ariel (laundry detergent)<br />

Ajax Jet Dry Milk<br />

Persil (laundry detergent) Vim (cleansing agent) Gumption<br />

Coffee Wisk Domestos<br />

Fantastic Lenor Vortex<br />

Formula 409 Downey Windex<br />

Closer examination showed slight discolorations due to contact with the following<br />

substances:<br />

Tomato juice<br />

Ketchup<br />

Lemon juice<br />

Mustard<br />

276 <strong>System</strong> <strong>Manual</strong> – DOP11A <strong>Operator</strong> <strong>Terminal</strong>s

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