Magnescale DK812A Series, Инструкция по эксплуатации

Страница: 37 / 64

(E)
1
1. Operating Cautions
• Do not use the unit in places where it may receive excessive shocks. Otherwise the inside of
the unit may be damaged or the unit may become unable to produce normal output signals.
• Be sure to turn off the power before connecting or disconnecting connectors in order to
prevent damage or misoperation.
•
Insert the connector into the display unit until it locks. Be sure to turn off the power
switch before connecting or disconnecting the connector.
• Locate the measuring unit at least 10 cm/3.94" away from a strong magnetic source.
• Do not forcibly pull the cable for connecting or disconnecting, or it may cause breakage.
• The measuring unit is short circuited to the frame GND (ground terminal) of the display
unit by shield wire of the cable.
When the measuring unit is used with an other signal processing device on a machine
tool, etc., be aware of the ground level.
• Do not place the measuring unit where it is exposed to splash of water or oil.
• In operating the feeler through the air feed port, use such an air-pass system as shown in
Fig. 1 to enable air driving. The suitable air pressure is approximately 0.025 ±0.01 Mpa,
but adjustment of the pressure control is needed according to the hardness of the object to
be measured, location in the measuring unit stroke when the measurement is taken, and
other factors. When adjusting, set it to a maximum pressure of 0.04 Mpa or less. Use a
precision regulator (such as IR2010 by SMC or equivalent) to control the air pressure.
• If the air pressure is too high, the anti-dust bellows can break.
• If the spindle ejection speed is too fast, an error may appear on the display the moment
that the workpiece is touched. In this case, use a speed controller as shown in Fig. 1 to
adjust the spindle speed.
• This unit stores air in the anti-dust bellows to perform air driving. As a result, when air is
inserted and the spindle is pressed out, the external dimensions of the anti-dust bellows
can become larger than the stem diameter of
φ
8. If a tube or other part is located around
the anti-dust bellows, make sure that it is at least a radius of 5 mm/0.20" away (diameter
of 10 mm/0.39" or more) from the measuring unit center.
•
The tube used for the air feed port of the DK812AVR / DK812AVR5 / DK812BVR /
DK812BVR5 should have an outer diameter of
φ
4 mm/0.16".
• Injection of air causes the spindle to perform the ejection operation.
•
Use dry air for air injection.
• Recommended calibration interval 1 year.
• This unit is equipped with an anti-dust bellows on the spindle. Organic solvents, ozone,
ultraviolet rays, and other adverse conditions in the ambient atmosphere can cause rapid
deterioration of the anti-dust bellows. When using in these environments, either replace
anti-dust bellows periodically (every six months to one year), or use the organic solvent
resistant anti-dust bellows. (For ordering the organic solvent resistant anti-dust bellows,
please inquire at your Magnescale Co., Ltd. sales office or the Service Center.)
DK812AVR / DK812AVR5 /
DK812BVR / DK812BVR5
AIR Mist separator
Air filter Precision
regulator
Speed controller
Pressure
source Solenoid
valve
P A
Regulator
DK812AVR / DK812AVR5 / DK812BVR / DK812BVR5
Fig.1 Air-pass system