Daktronics TI-2022, Руководство пользователя

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Introduction
1
1 Introduction
This manual explains the installation and maintenance of Daktronics TI-2022 portable
timing display. For additional information regarding safety, installation, operation, or
service, refer to the telephone numbers listed in Section 6: Daktronics Exchange and
Repair & Return Programs (p�16) . This manual is not specific to a particular installation.
Project-specific information takes precedence over general information found in this
manual.
Important Safety Instructions
• Read and understand all instructions before using the display.
• Do not drop the device or immerse it in water.
• This device may be used outdoors temporarily, but it is not to be permanently
mounted outdoors or left in wet weather.
• This device shall not be exposed to dripping or splashing, and no objects filled with
liquid shall be placed upon it.
WARNING! To reduce the risk of fire or electric shock, do not expose this device to rain
or moisture.
• Operate the device with the built-in rechargeable battery. A completely charged
battery will provide at least 10 hours of operation. Use 120 V power only when the
battery’s power is low.
CAUTION! DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED.
REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE.
WARNING! Do not expose batteries to excessive heat, such as direct sunlight or open
fire.
• Do not run the display’s battery dead. Charge it for 24 hours before putting it away.
• Do not let the power cord touch hot surfaces or hang over the edge of a table,
which could damage or cut the cord.
• If an extension cord is necessary, use a three-pronged polarized cord. Arrange the
cord with care so that no one will trip over or pull it out.
• Before using an extension cord, inspect the cable thoroughly and verify its
compliance with the local electric codes.
• Always turn off and unplug the control equipment when it is not in use.
• Never yank the power cord to pull the plug from the outlet. Grasp the plug and pull
to disconnect.
• To avoid electrical shock, do not disassemble the control equipment or the driver
modules. Incorrect reassembly can cause electric shock and faulty operation or
permanent damage to the circuits.
WARNING! To prevent injury, the display must be securely attached to a wall in
accordance with installation instructions.