Magnescale DK812 Series, Instruction Manual

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(E) 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 oder
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. 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.
•
The tube used for the air feed port of the DK812VR/DK812VR5 should have an
outer diameter of 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.
Fig. 1 Air-pass system
DK812VR / DK812VR5
DK812VR/
DK812VR5
AIR
Mist separator
Air filter
Precision regulator
Speed controller
Pressure source
Solenoid
valve
P A
Regulator