(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 o
f 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 of the power
switch before connecting or disconnecting the connector.
• Locate the measuring unit at least 10 cm away from a strong magnetic source. (h
e
measuring unit must not be used in magnetic i elds exceeding 5 mT.)
• Do not forcibly pull the cable for connecting or disconnecting, or it may cause breakage.
• h
e 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.
• Calibration is recommended every year.
• h
e DK830SLR can provide protection equivalent to a IP67 degree of protection by
using with the Bellows Set DZ830BL (optional accessory). h
e DK830SVR can provide
protection equivalent a IP67 degree of protection by using with the Bellows Set
DZ830BV (optional accessory). h
e DK830SR cannot be used with a bellows set.
• When using a bellows set (optional accessory) with the DK830SLR or DK830SVR,
organic solvents, ozone, ultraviolet rays, or other adverse conditions in the ambient
atmosphere can cause rapid deterioration of the bellows. When using in these
environments, replace the bellows periodically (every six months to one year).
For DK830SVR only
• In operating the feeler through the air feed port, use such an air-pass system as
shown in Fig.1 to enable air driving. h
e suitable air pressure is approximately 0.1
±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. Use a precision regulator (such as IR2010 by
SMC or equivalent) to control the air pressure.
• If the spindle ejection speed is too fast, an error may appear on the display the moment
that the workpiece is touched. Excessive impact may dislodge the retainer inside the
bearing, causing the measuring range to be reduced. In this case, use a speed controller
as shown in Fig.1 to adjust the spindle speed.
• h
e tube used for the air feed port should have an outer diameter of
φ
4 mm.
• Injection of air causes the spindle to perform the ejection operation.
• Use dry air for air injection.
DK830SVR
P
R
A
AIR
Pressure
source
Mist separator
Ai
r i lter
Speed controller
Regulator
Solenoid valve
Precision regulator
DK830SVR
Fig.1 Air-pass system
