Magnescale SJ300 SJ300, Manual

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SJ300 Series
(E)
(3)
Handling Precautions
Installation precautions
When installing this unit, care should be given to the following points to prevent noise and
electromagnetic wave interference from other equipment.
1. Do not pass lead and connection cables through the same ducts as power lines.
2. Be sure to install the unit at least 0.5 m/1.6 ft or more away from high voltage or large
current sources or high-power relays.
3. Absolutely do not bring the unit near magnets or sources of electromagnetic waves.
•
Magnet chucks and other sources of magnetic force of approx. 60 mT should be kept
at least 50 mm/2.0 in or more away from the shaft scale surface.
•
If the unit must be installed close to sources of magnetic force, be sure to implement
adequate electromagnetic shielding countermeasures.
Installation place precautions
1. Mount the scale for more precise positioning as closely as possible to the workpiece or
to the object being measured.
(The farther the scale is mounted from workpiece, the greater the mechanical errors
grow.)
2. The scale unit should be used within an ambient temperature range of 0 to 40°C (104F°).
Avoid locations where the scale is exposed to direct sunlight and heat sources such as
motors.
3. Do not place anything on the mounted scale, or step on it: excessive force to the scale
causes trouble.