Omron ZW-7000 Series User Manual page 12

4. Maintenance and Inspection
• Do not use thinner, benzene, acetone or kerosene to clean the Sensor Head, fiber cable and Sensor
Controller. If large dust particles adhere to the emitter/receiver of the Sensor Head or Sensor Controller, use
a blower brush (used to clean camera lenses) to blow them off. Do not blow the dust particles with your
mouth.
To remove smaller dust particles, dirt, oil, and fat, wipe gently with a soft cloth (for cleaning lenses). Do not
use excessive force to wipe off dust particles. Scratches on the emitter/receiver may cause false operations
or measuring errors.
• Do not touch the end surface of a fiber cable, or the cable may be degraded in performance. Should the end
surface be touched or soiled, wipe the dirt away using a commercially available cleaner exclusive for fiber or
dry and soft cloth. Do not use a cloth moistened with alcohol, or the dirt may be reattached.
• Use the optional ZW-XC when cleaning the controller fiber connector. For ZW-7000, use a commercially
available fiber cleaner. For how to clean the fiber connector using ZW-XCL, refer to the Cleaning the fiber
connector and fiber cable using ZW-XCL (p.60).
• If you frequently insert and extract the Sensor Head, recommend to use the commercially available fiber
cleaner which can use repeatedly. For commercially available fiber cleaner, refer to the p.59 on this manual.
• Clean the ventilation port periodically to prevent any build up of dirt and dust. If the ventilation port is blocked,
heat builds up inside and can cause breakdown.
5. Sensing Objects
The product sometimes cannot accurately measure the following types of objects:
Transparent objects, objects with a low reflection factor, objects smaller than the spot diameter, objects with a
large curvature, excessively inclined objects, target objects with a thin film on the surface etc.
6. Effect caused by peripheral lights
Do not install the Sensor Head in a place where strong light hits the laser emitter/receiver section of the Sensor
Head. Also, if an object has a shiny surface, the light from the lighting will be reflected and a malfunction may
occur. In such a case, prevent reflection by, for example, covering the light to stop reflection.
Basic precautions for installation p.49
7. Influence by Air Turbulences
Slow air turbulences around the Sensor Head may disperse measured values.
To avoid these possible air turbulences, wrap the Sensor Head with an appropriate cover.
8. Operations Outside Measurement Range
Since this Sensor is highly sensitive, the measurement value may be beyond the limits of measurement range.
In such a case, shorten the measurement cycle; Exposure time.
9. Maximum Number of Allowed Writes to EPROM in Sensor Controller
When Zero-Reset Memory mode is set to ON, the zero reset is written to EEPROM (non-volatile memory) in
the Sensor Controller each time a zero reset is performed. The EEPROM can be written a maximum of
1,000,000 times. Pay attention to the maximum number of writes allowed when this is set to "ON."
Setting the Zero Reset Memory p.155
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ZW-7000/5000
User's Manual