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Safety
considerations
490 INSTALLATION MANUAL, Revision B2
SECTION TWO
Installing the
transducer
WARNING!
Be sure to turn the power off before starting the
installation. Further, it is highly recommended that
you keep power off while you're performing the
installation. If power is left on or turned on during
the installation, fire, electrical shock, or other
serious injury may occur.
Be sure to ground the equipment to prevent
electrical shock and mutual interference.
Be sure the transducer outputs are tied together
before handling to avoid electrical charge build-up.
WARNING!
Be sure to use a 3-amp fuse. Using the incorrect
fuse can result in fire or damage to the 490.
Page 5
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