EQ42/50/52 Introduction and safety summary Chapter 1
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1.2 Safety summary
Precaution The operating unit should not be exposed to direct sunlight,
as “boiling” the display may cause too high temperatures internally and
subsequently damage parts of the unit beyond repair.
Quality service personnel The EQXX is sealed and does not contain
any user serviceable parts. Opening of the unit will void its warranty.
Touching electrical parts inside may cause bodily harm or death. If the
unit is not working properly, check sections 9.8 Preventive maintenance,
9.9 Repair and service, and 9.10 Troubleshooting. If your EQXX requires
servicing or repair, call your authorized SIMRAD dealer.
Power source, fuse and power cable Check that the DC power
supplied to the unit is within the range of 10 to 32 volts. Note that the
appropriate fuse must be employed (see the fuse rating in section 9.11
Specifications). Ensure that the power cord is firmly attached.
Grounding The EQXX is a sophisticated piece of electronic equip-
ment. To reduce electrical interference and risk of electrical shock,
properly ground the unit to the ship’s ground using the ground screw on
the back of the unit.
Glossary of terms If you have never used an echosounder before or if
you are unsure of how a term is used in this manual, then turn to
Appendix A – Glossary of terms.
Default settings All user implemented data in the EQXX can be erased
by making a reset of the unit and thus return to factory default settings.
Principles of operation The scientific principles of operation of the
EQXX are explained in chapter 8. Principles of operation.
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