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The Digital Pressure Switch and this technical specification essential information for the protection
of users and others from possible injury and damage to property and to ensure correct handling.
Please check that you fully understand the definition of the following messages (signs) before
going on to read the text, and always follow the instructions.
Also read carefully the technical specification of relevant equipment or apparatus before use.
Indications
IMPORTANT MESSAGES
Read this manual and follow its instructions. Signal words such as WARNING, CAUTION
and NOTE, will be followed by important safety information that must be carefully reviewed.
Indicates a potentially hazardous situation which could result in death
or serious injury if you do not follow instructions.
Indicates a potentially hazardous situation which if not avoided, may
result in minor injury or moderate injury.
NOTE
Gives you helpful information.
Usage Restrictions
♦This product is designed for use in general equipment for factory automation. Never use this
product with equipment or apparatus that directly concerns human lives*
1
, or which
malfunction or failure can cause a huge loss.
*1: Equipment or apparatus that directly matters human lives means the following:
• Medical equipment such as life support systems or equipment used in operating rooms
• Compulsory equipment required by law such as the Fire Prevention Law, Construction Law
and etc.
• Equipment or apparatus that conforms with those mentioned above.
♦Contact our sales department when plans are made for the product to be used for the system*
2
including equipment that concerns itself with the safety of persons or that seriously affects the
public. This usage needs special consideration*
3
.
*2: The system including equipment that concerns itself with the safety of persons or that seriously
affects the public means the following:
• Nuclear reactor control systems in nuclear power plants, safety protection systems or other
systems important for safety in nuclear power facilities
• Driving control systems of mass transportation systems, and flight control systems
• Equipment or apparatus that comes into contact with foods or beverages
*3: Special consideration means discussing usage with our engineers to establish a safe system
designed as fool-proof, fail-safe, redundant and etc.
♦Special consideration of safety or maintainability should be taken to prevent hazard or loss
caused by a failure or malfunction that is likely to occur in certain probability due to
environmental stress (deterioration).
The special consideration means to fully review the equipment or apparatus in design stage
and to establish a backup system in advance such as a redundant system or fail-safe system.
♦Use for an interlocking circuit
When using the pressure switch as a sensor for interlock, adopt a double interlocking method
such as equipping the mechanical protection function in order to deal with a pressure switch
failure.
Check the pressure switch regularly to ensure proper operation.
PS##-OMF0010-C
Safety