KEYENCE GT-A22L - Manual

1
GT Series - Digital Contact Sensors
Sensor Head (Air Push Models)
Read this manual before using.
After reading this manual, keep it in a safe place for quick reference.
Safety Precautions
z Cylinder
• This product uses a single-acting cylinder. The internal spring will
return the cylinder to its home position when air pressure is
removed. DO NOT supply air to the exhaust valve.
• The cylinder is an integral part of the sensor. It cannot be removed.
z Air
• To ensure repeatable results, maintain regulated pressure to the air
cylinder.
• Use of air cylinders, mist separators, dryers will ensure maximum
operating life.
z Duct Assembly
• The coupling socket and exhaust valve are integrated into the
sensor housing. They cannot be removed.
Names of Sensor Head Parts
Air Tube
The following tubing is recommended for all GT air push models:
How to Attach/Detach the Air Tube
z Attaching the air tube
Feed the tubing into the socket until it bottoms out (about 1/2").
The socket will ensure a tight seal around the tubing.
• For best results, cut the end of the tube at a right
angle, ensure that the outer perimeter is not
damaged, and that it still maintains a circular cross
section.
• If the tube is not properly inserted, air leakage may
result (see figure below).
• After attachment, pull on the tube to make sure it is
secure.
z Detaching the air tube
To detach the air tube, (1) press down on the release ring, (2) pull
out the tube.
• Before detaching the tube, be sure to stop any air
flow.
• Press down on the release ring evenly from both
sides, and pull the tube out. Uneven pressure may
result in damage to the tube or damage to the
operation of the air cylinder.
CAUTION
Connect this product to the GT-70A Series
sensor amplifier before using. Be sure to
carefully read the instruction manual supplied
with the sensor amplifier and that it is fully
understood before using.
Dust boot
Spindle
Contact
Coupling socket
Operation indicator
Exhaust valve
Mounting fixture
Dust boot*
Contact
Air cylinder
Connector
* Not mounted on GT-A10L/A22L.
Item Description
Recommended tubing material Nylon, Urethane
Tubing size
Outer diameter 4 mm
Inner diameter 2.5 mm
Coupling socket
Air tube
Tube end
(2)
(1)
Release ring
96M1757