Hikari HK2900, Instruction Manual

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Safety precautions
1. Safety operation indications
：
This instruction manual book and the safety indications of products are help to you to use
the products in the right way, ensure safe operation
DANGER
If ignore this symbol and make the mistake operation, will almost
certainly cause death or sever injury.
CAUTION
If ignore this symbol and make the mistake operation, will make human
injury and physical damage to equipment.
This symbol indicates” matters need attention”. The picture inside the
triangle indicates the content need attention,(for example, the symbol at
left means beware of injury.
This symbol indicates “prohibit”.
This symbol indicates something must do. The picture inside the circle
give the details. (For example, the symbol at left means “you must make
the ground connection”.
2. safety precautions
DANGER
Wait at least 5 minutes after turning off the power switch and disconnecting
the power cord from the wall outlet before opening the face plate of the
control box. Touching areas where high voltages are present can result in
severe injury.
caution
Environmental requirements
Use the sewing machine in an area which is free from sources of strong
electrical noise such as high ‐ frequency welders.
Any fluctuations in the power supply voltage should be within ±20% of the
rated voltage for the machine. Voltage fluctuations which are greater than this
may cause problems with correct operation. it need to equip with voltage
stabilizer
The ambient temperature should be within the range of 5
℃
~to 35
℃
Temperatures which are lower or higher than this may cause problems
The relative humidity should be within the range of 45% to 85% during use,
and no dew formation should occur in any devices.Excessively dry or humid
environments and dew formation may cause problems