STP-301/451 Series Instruction Manual 
 
1
SAFETY PRECAUTIONS 
The Safety Precautions in this Manual constitute guidelines to protect operators, the STP pump 
and its peripheral equipment. 
To avoid personal injury and prevent product and/or peripheral equipment damage, observe the 
Safety Precautions as well as the general safety rules (your country’s laws, regulations, safety 
standards and so on). 
If the equipment is used in a manner not specified by Edwards, the protection provided by the 
equipment may be impaired. 
 
SYMBOLS 
The following symbols are used in this manual: 
 
 
Death or Serious Personal Injury
 
 
Failure to follow the guidelines marked with this symbol may result in death or serious 
personal injury. 
 
 
 
Minor Personal Injury, Product and/or Peripheral Equipment Damage
 
 
Failure to follow the guidelines marked with this symbol may result in minor personal injury, 
product and/or peripheral equipment damage. 
 
 
NOTICE
 
Items you must follow during operation and maintenance. 
 
 
  ATTENTION : refer to this manual. 
 
Edwards Japan Limited (hereafter called Edwards) cannot perfectly anticipate circumstances of 
all of hazards or problems. The scope of anticipation is limited to the precautions included in the 
 and    specified in this manual.