KEYENCE GT2-PA12K/PA12 - Manual (Page 3)

3
 Adjustment of Spindle Movement Speed
To adjust the spindle movement speed, install a speed controller between
the cylinder and the air supply. Using OP-87970 is recommended.
How to replace the dust seal
Refer to the instruction manual included with the replacement dust seal
(OP-87932).
Specifications
 Sensor head
*1 When the surrounding temperature is 20°C.
*2 Representative value when using 0.25 MPa. The measuring force varies
depending on the air pressure used. See Table 1 for more details.
*3 The contact is a separately sold option.
*4 Including the relay connector.
Note: Cannot be used with amplifier units purchased before April 15th, 2014.
External dimensions
 GT2-PA12K/PA12
NOTICE
• To further decrease spindle movement speed, use a
coil-shaped tube (OP-87986) or similar to increase
the distance between the air supply hole and the
speed controller.
• The speed controller will not operate if installed in
the reverse direction.
Model GT2-PA12K GT2-PA12
Detection system
Scale shot system II
Absolute type (without tracking error)
Measuring range 12 mm
Resolution 0.1 m 0.5 m
Indication accuracy *1 1 m (P-P) 2 m (P-P)
Measuring
force *2
When installed
facing down
1.2 N
When installed
sideways
1.15 N
When installed
facing up
1.1 N
Sampling interval 4 ms
Pressure range 0.24 to 0.26 MPa
Max. pressure 0.5 MPa
Fluid to use Clean dry air
Operation indicator 2-color LED (red, green)
Environmental
resistance
Enclosure rating IP67 (IEC)
Surrounding air
temperature
0 to +55 °C (No freezing)
Relative
humidity
35 to 85% RH (No condensation)
Vibration
resistance
10 to 55 Hz, Compound amplitude 1.5 mm,
2 hours each in X, Y, and Z axis
Shock
resistance
1000 m/s 2 (IEC60068-2-27)
Material
Main unit
Main unit cover: SUS303,
Spindle: SUS430 (fluorine-based coating)
Head indicator: PET
Cable between the sensor head and relay connector:
PUR
Relay connector: PBT,
Dust seal (GT2-PA12K/PA12 only):
SUS303/SU304/aluminium (alumite treated)/
special polyester fiber
Contact *3
SUS304,
tungsten carbide
SUS304, SUS440C
Head cable Sold separately (connected to relay connector)
Weight (excluding cable) *4 Approx. 35 g
Speed controller
Indication symbol
Air supply
Adjusting the speed
0 1 2 3 4 5 6 7 8 9 10 11 12
Measuring force (N)
0.25 MPa
Spindle retracted
0.24 MPa
Spindle extended
Table 1. Relationship between spindle position and measuring force
grouped according to used air pressure.
(When installing side mounting, the measuring force is -0.05 N.
When installing upward mounting, the measuring force is -0.1 N.)
Spindle position (mm)
0.26 MPa
Applied pressure (MPa)
1.7
0.7
1.2
(Unit: mm)
12.8
- 8
0 0. 030
75.2 (possible fixing range)
17.4 30.2
104.8
3.8
44.2
4.6
44.2
16.5 (11.9)
Minimum 10
Minimum 10
Air supply valve (For air tubes with an inner diameter of 2.5 mm) 13.6 26.4
3.8
cord 150 mm long
M8 cable connector
4 4