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ii Important Information
• The refresh rate is 45 Hz to 70 Hz in XGA mode, and 45 Hz to 75 Hz in other modes. If you set
the vertical refresh rates to greater than the recommended values, your screen can overheat.
• If you move the ID250, lift it using the finger indentations on the underside of the unit.
The Tethered Pen
• The tethered pen is a sealed unit that contains electronics but no batteries. If you attempt to
open the tethered pen, you’ll damage these electronics. This will make the tethered pen
unusable and void the warranty.
• Don’t touch the screen with any instrument other than the supplied pen because other
instruments may damage the screen’s coating.
• Don’t use a pen that has worn down to a sharp or angular tip, as it may damage the screen.
• Don’t immerse the pen in water.
The Environment
• Avoid setting up and using the ID250 in an area with excessive levels of dust, humidity and
smoke or where it’s exposed to direct sunlight, severe temperature changes, heat from other
appliances, water or any other liquid. Operate the ID250 in an environment with a temperature
range between 41° F and 95° F (5° C to 35° C) and with a humidity range of 20% to 80% (non-
condensing). However, you can store the ID250 in an environment with a temperature range of
14° F to 140° F (-10° C to 60° C) and a humidity range of 20% to 90% (non-condensing).
• Don’t modify the power cord. Handle it carefully and avoid bending it excessively. Don’t place
the power cord in an area where it’s likely to be stepped on or pinched by items placed on or
against it. If you must run a cable over the floor, lay it in a flat, straight line, and secure it to the
floor with tape or a cable management strip of contrasting color.
• The ID250 comes with a power plug that works with your country’s power outlets. If the power
plug is a three-prong, grounding-type power plug (designed to fit into a grounding-type power
outlet), and you’re unable to insert the plug into an outlet, contact an electrician to replace the
outlet. Don’t modify the power plug.
• Place the ID250 in a location where users will have clear and direct access to the main power
plug, as they must be able to unplug the unit at all times. Always disconnect the ID250 before
you install any devices or perform any maintenance.
• If possible, unplug the ID250 before any thunderstorms. However, don’t touch the unit or the
unit’s power plug during a thunderstorm, as there is a risk of electrical shock.
• Unplug the ID250 if you won’t use it for an extended period.
• Don’t hit or drop the ID250 or subject it to intense shock or vibration.
• If the ID250 requires replacement parts, use parts that are specified by SMART Technologies
Inc.