Proximity Sensors Technical Guide
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Operating Environment
Water Resistance
Do not use the Sensor in water, rain, or outdoors.
Ambient Conditions
Do not use the Sensor in the following environments.
Doing so may cause malfunction or failure of the Sensor.
1. To maintain operational reliability and service life, use the Sensor
only within the specified temperature range and do not use it
outdoors.
2. The Sensor has a water resistant structure, however, attaching a
cover to prevent direct contact with water will help improve
reliability and prolong product life.
3. Avoid using the Sensor where there are chemical vapors,
especially strong alkalis or acids (nitric acid, chromic acid, or hot
concentrated sulfuric acid).
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Maintenance and inspection
Periodic Inspection
To ensure long-term stable operation of the Proximity Sensor, inspect
for the following on a regular basis. Conduct these inspections also
for control devices.
1. Shifting, loosening, or deformation of the sensing object and
Proximity Sensor mounting
2. Loosening, bad contact, or wire breakage in the wiring and
connections
3. Adherence or accumulation of metal powder
4. Abnormal operating temperature or ambient conditions
5. Abnormal indicator flashing (on setting indicator types)
Disassembly and Repair
Do not under any circumstances attempt to disassemble or repair the
product.
Quick Failure Check
You can conveniently check for failures by connecting the E39-VA
Handy Checker to check the operation of the Sensor.
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