Chapter 13 Maintenance & Troubleshooting
Introduction
This chapter includes instructions on cleaning and storing the ES400, and pr ovides troubleshooting solutions for
potential problems during ES400 operation.

Maintaining the ES400

For trouble-free service, observe the following tips when using the ES400:
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Do not scratch the screen of the ES400. When working with the ES400, use the supplied stylus or
plastic-tipped pens intended for use with a touch-sensitive screen. Never use an actual pen or pencil or other
sharp object on the surface of the ES400 screen.
•
The touch-sensitive screen of the ES400 is polycarbonate. Do not to drop the ES400 or subject it to strong
impact.
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Protect the ES400 from temperature extremes. Do not leave it on the dashboard of a car on a hot day, and
keep it away from heat sources.
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Do not store the ES400 in any location that is dusty, damp or wet.
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Use a soft lens cloth to clean the ES400. If the surface of the ES400 screen becomes s oiled, clean it with a
soft cloth moistened with a diluted window-cleaning solution.
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Periodically replace the rechargeable battery to ensure maximum battery life and product performance.
Battery life depends on individual usage patterns.

Battery Safety Guidelines

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The area in which the units are charged should be clear of debris and combusti ble materials or chemicals.
Particular care should be taken where the device is charged in a non c ommercial environment.
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Follow battery usage, storage, and charging guidelines found in the user's guide.
•
Improper battery use may result in a fire, explosion, or other hazard.