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TESTING AFTER INSTALLATION
After installation, test all the functions of Expedition Series siren EH-100
including the horn operation, to ensure that it is operating properly. All
effective sirens and horns produce loud sounds (120 dB) that may cause
permanent hearing loss. Always minimize your exposure to siren sound and
wear hearing protection. After installation and testing is complete, provide a
copy of this manual to all operating personnel.
SERVICE AND MAINTENANCE
To properly service an electronic siren, you must have a good understanding
of automotive electrical systems and emergency signaling procedures.
Most of the components and electronic parts used in the model EH-100 are
standard items that can be obtained from any electronics supply shop. To
reduce equipment down-time, the factory recommends that the entire
amplifier's printed circuit board (part No. 2012410A with microprocessor,
2012410A-01 without microprocessor) be replaced. The handheld controller
board is 2012410B. The printed circuit board is relatively inexpensive
allowing you to keep an adequate supply in your repair shop.
If the board without microprocessor is ordered, the original microprocessor
may be reused. The microprocessor can be removed from the defective board
and insert onto the new board. It is about 80% of failure due to other problems
than the microprocessor.
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