Sony DK812FLR, Instruction Manual

Page: 23 / 40

(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 probe where it is exposed to splash of water or oil.
•
In operating the feeler with a vacuum pump, use such an air-pass system as
shown in Fig. 1 to enable air driving. The optimum vacuum rate is 40 to 66.7
kPa. Further, put such an orifice as shown in Fig. 2 on a tube from the air lifter
connector to control the air suction and discharge speed. The feeler is lifted at
the air discharge to the vacuum pump.
• Recommended calibration interval 1 year.
Unit: mm/inch
AUS
Orifice
VAC
EXH
DK812FLR / DK812FLR5
1/0.04"
To vacuum
system
To fitting tube
φ
3/0.12" dia.
Filter
Fig. 1 Air-pass System Fig. 2 Dimensions of Orifice
Cable
Fitting
VG
Valve
Vacuum pump
system
3/0.12" 3/0.12"
φ 0.3/0.01" dia.
φ
2.5/0.1" dia.
C0.5/0.02"
3/0.12"