KEYENCE GT-A22L User Manual

96M1757

GT Series - Digital Contact Sensors

Sensor Head (Air Push Models)

SupplementalManual

Read this manual before using. After reading this manual, keep it in a safe place for quick reference.

Safety Precautions

Air Tube

The following tubing is recommended for all GT air push models:

Item Description

Recommended tubing material Nylon, Urethane

Tubing size

Outer diameter 4 mm

Inner diameter 2.5 mm

How to Attach/Detach the Air Tube

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.

Air tube

Coupling socket

Connect this product to the GT-70A Series sensor amplifier before using. Be sure to

CAUTION

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.

Air

•

To ensure repeatable results, maintain regulated pressure to the air cylinder.

•

Use of air cylinders, mist separators, dryers will ensure maximum operating life.

Duct Assembly

•

The coupling socket and exhaust valve are integrated into the sensor housing. They cannot be removed.

carefully read the instruction manual supplied with the sensor amplifier and that it is fully understood before using.

Names of Sensor Head Parts

Coupling socket

Note

•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).

Tu be end

•After attachment, pull on the tube to make sure it is secure.

Detaching the air tube

To detach the air tube, (1) press down on the release ring, (2) pull out the tube.

(2)

(1)

Release ring

Dust boot

Spindle

Air cylinder

Operation indicator

Contact

Connector

Exhaust valve

Mounting fixture

Dust boot*

Contact

* Not mounted on GT-A10L/A22L.

Note

•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.

IP67 Enclosure Rating

Specifications

To m a i n t a i n an IP67 enclosure rating for GT-A10/A22, the following must be satisfied:

•

Firmly connect tubing with 2.5 mm inner diameter to the exhaust port until it bottoms out.

•

Ensure that the tube end is free of dirt or water.

Screw

Exhaust valve

Air tube

•

Tighten the screw of the exhaust valve with a torque of 0.5 to

0.6 N

m. If the screw is loose, the IP67 rating cannot be

guaranteed.

Tip

By loosening the screw of the exhaust valve, you can change the exhaust port angle.

Adjustment of Spindle Movement Speed

To a d ju s t t h e spindle movement speed, install the optional speed controller (OP-82133) between the cylinder and the air supply.

Air supply

Speed controller (OP-82133)

Within 0.5 m recommended

Indication symbol

Item Specifications

Model GT-A10 GT-A10L GT-A22 GT-A22L

Detecting range 10 mm 22 mm

Repeatability

Operating

force

Environmental resistance

When installed facing down

When installed sideways

When installed facing up

Ambient temperature

Relative humidity

3 µm 8 µm

1.0N 0.3N 1.5N 0.35N

0.9N 0.25N 1.4N 0.3N

0.8N 0.2N 1.3N 0.25N

0 to +55°C

35 to 85%RH

Fluid to use Dry air

Pressure range 0.35 to 0.5 MPa

Max pressure 1.0 MPa

Enclosure ratings IP67 - IP67 -

Main unit cover

SUS430

Indicator Polyarylate

Dust boot NBR - NBR -

Material

Contact SUS304

Cable PVC

Aluminum alloy,

Polyacetal,

Nickel plated brass

Approx. 150 g Approx. 180 g

Weight

Air cylinder assembly

*1 The read value at the detection center under an ambient

temperature of 23°C and a response time of 100 ms.

*2 The operating force (typical value) at the center of the

movable range of the installed sensor head when supplying air. Note that the detectability varies according to the mounted condition of the dust boot. Do not mount the dust boot on GT-A10L/A22L.

*3 Includes the connector cable (2 m).

Adjusting the speed.

Note

•To ensure proper operation, install the speed controller within 0.5 m of the cylinder.

•Install the speed controller in the direction indicated by the above figure. The speed controller will not operate if installed in the reverse direction.

0017-1 96M1757

Printed in Japan