KEYENCE GT2-70 User Manual

High-accuracy Digital Contact Sensor

WARNING

NOTICE

WARNING

WARNING

NOTICE

NOTICE

30 N 100 N

1 N

Mist separator

Air filter

Pressure

source

AIR

Solenoid
valve

Precision regulator

Air supply par t

Speed
controllerIllustration 1 - Pneumatic circuit

GT2-70

■

Symbols

The following symbols alert you to matters concerning the prevention of
human injury and product damage. Be sure to read these messages carefully.

Safety Information for GT2-70 Series

Series Instruction Manual

It indicates a hazardous situation which, if not avoided,
could result in death or serious injury.

It indicates a situation which, if not avoided, could result in
product damage as well as property damage.

If the following conditions are encountered, immediately turn
OFF the power. Continuing to use the GT2-70 Series under
these abnormal conditions may cause equipment failure.

• When water or foreign matter enters the controller

• When the GT2-70 Series is dropped or the housing is damaged

• When the GT2-70 Series produces smoke or an abnormal smell

• Do not use the GT2-70 Series with a voltage other than
specified voltage, as this may cause fire, electric shock
or equipment failure.

• Do not disassemble or modify the GT2-70 Series. This
may cause fire or electric shock.

• Do not use this product for the purpose to protect a
human body or a part of human body.

• This product is not intended for use as explosion-proof
product. Do not use this product in a hazardous location
and/or potentially explosive atmosphere.

• Be sure to turn OFF the power of the GT2-70 Series and any
connected devices before connecting or disconnecting the
cables. Otherwise, there may be a risk of damage.

• Do not turn OFF the power while setting parameters.
Otherwise, the settings may be partially or completely lost.

• At startup and during operation, be sure to monitor the
function performance of the GT2-70 Series.

• Do not modify the GT2-70 Series or use it in any way
other than described in the specifications.

• The function performance of products used or modified
in this way cannot be guaranteed.

• When the GT2-70 Series is used in combination with other
instruments, function performance may be degraded,
depending on operating conditions and the surrounding
environment. Use the GT2-70 Series after fully studying
the effect of combined use with other instruments.

• Do not expose the GT2-70 Series and peripheral devices
to sudden temperature change. This may cause
condensation, damaging the equipment.

●

Environmental conditions

To use the GT2-70 Series properly and safely, do not
install the GT2-70 Series in the following locations. Use
of this equipment in an improper environment may
cause equipment failure.

•

Locations outside

•

Locations with high humidity, a large amount of dust,
or poor ventilation

•

Locations where the temperature rises excessively
due to direct sunlight, etc.

•

Locations near corrosive or flammable gas

•

Locations where the GT2-70 Series is directly
subjected to vibration or impact

•

Locations where water, oil or chemicals may come
into contact with the GT2-70 Series

•

Locations where static electricity may easily occur

●

Noise countermeasures

Installation near a source of electrical noise such as a
power source or a power cable may cause malfunction
or failure of the equipment. Adopt appropriate
countermeasures against noise by using a noise filter
or wiring cables in separate ducts, attaching insulation
to the amplifier or the sensor head, etc.

96M12752

●

Handling of the sensor head

•

The GT2-70 Series and peripheral devices are precision
machines. Do not drop, or cause any other impact to these
devices. Doing so may cause damage or malfunction.

•

Do not apply weight greater than what is listed below to the spindle.
Do not apply rotational torque. Otherwise the spindle may break.

•

The GT2-P12KL(F)/P12L(F)/PA12K/PA12 spindle can rotate a
maximum of about 4.5°. When using an offset contact (OP-

77683) or similar, if pressure in the rotational direction is
applied to the contact, the measurement position may change.

•

Although the GT2-PA12K/PA12/H12K/H12KF/H12/H12F/
H32/H50/A12K/A12/A32/A50 has a protection rating of
IP67, avoid using it immersed in water or in places where
liquid such as oil may come into contact with it.

•

Although the GT2-P12K(F)/P12(F) has a protection rating of
IP67G/NEMA Type 13, some types of oil may damage the device.

•

If dust, metal powder, or similar becomes attached to the sliding part
of the sensor head, mechanical responses may become slow. If this
happens, replace the dust seal with a replacement dust seal (OP-

87932). Refer to the instruction manual included with the replacement
dust seal (OP-87932) for instructions on how to replace the dust seal.

■

Other precautions

●

Effects of surrounding air temperature

To use the GT2-70 Series with high accuracy, do not use the GT2-70 Series in
an environment in which the surrounding air temperature changes sharply.
It will take about 40 minutes for the 12 mm type, and 60 minutes for the 32 mm/50 mm type for
the internal temperature to stabilize when the surrounding air temperature has changed by 10°C.

●

Warming up

The circuit is not stable immediately after the power turns ON, which
sometimes causes the indicated value to gradually fluctuate. Wait for about
5 minutes when using the 12 mm type and about 10 minutes when using
the 32/50 mm type after the power turns on before starting operation.

●

GT2-PA12K/PA12 (See illustration 1 for the pneumatic circuit)

•

This model uses a single-acting cylinder. The internal spring will
return the sensor head to its home position.

•

The air supply hole cannot be removed.

•

Use an air filter, mist separator, etc. to provide clean dry air. Empty the
drainage from the filter regularly, before it exceeds the specified line.

•

Before connecting the air tube to the air supply hole, be sure to blow
plenty of air through the pipes (flushing) to remove any foreign matter.

•

Make sure that the air pressure of the supplied air is constant and in the range
of 0.24 to 0.26 MPa. Use a precision regulator to control the air pressure. If
the air pressure is below 0.24 MPa, the spindle may not extend fully.

•

When supplying air (with the spindle extended), up to 3L/min of air
will be emitted from the tip of the dust seal.

•

The measuring ability of the device changes according to the air pressure
of the air supply. Refer to "Specifications" (page 14) for details.

●

GT2-A12K(L)/A12(L)/A32/A50 (See illustration 1 for the pneumatic circuit)

•

This model uses a single-acting cylinder. The internal spring will return the sensor head to
its home position when air pressure is removed. DO NOT supply air to the exhaust valve.

•

The air cylinder cannot be removed.

•

Use the regulator to supply the stable air pressure to the sensor head.

•

Use the air filter and mist separators to supply dry air. Empty the
drainage from the filter regularly, before it exceeds the specified line.

•

Make sure that the air pressure of the supplied air is constant and
in the range of 0.25 MPa to 0.5 MPa.

•

The coupling socket and the exhaust valve that are supplied with the
air cylinder are dedicated for this product. They cannot be removed.

●

Power suppl y

•

Noise superimposed on the power supply may cause malfunction. Be sure to
use the DC stabilized power supply provided with an insulation transformer.

•

In the case of a commercially available switching regulator, be sure to
ground the frame ground terminal or the ground terminal.

●

About dust boot

When the dust boot of the sensor head is damaged, use an optional dust boot sold
separately (For GT2-P12K(F)/P12(F)/H12K(F)/H12(F)/A12K/A12: OP-84332 (Material: NBR
(attached when shipped)). For GT2-P12K(F)/P12(F): OP-87859 (Material: Fluororubber).
For GT2-H32/A32: OP-84459 (Material: NBR (attached when shipped)). For GT2­H50/A50 (Material: NBR (attached when shipped)).) Attach the dust boot correctly.
The dust boot may deteriorate, depending on the environment it is
used in. In this case, replace the dust boot regularly.
* Do not use the dust boot on the GT2-P12KL/P12L/PA12K/PA12/H12KL(F)/H12L(F)/H32L.

Precautions on Regulations and Standards

■

CE Marking

●

EMC Directive (2004/108/EC)

•

Applicable standard EMI: EN61326-1, Class A

•

This product is designed for use in industrial environments.

Remarks： This specification does not give any guarantee that the end-product
with this product incorporated complies with the essential requirements of
EMC Directive. The manufacturer of the end-product is solely responsible for
the compliance on the end-product itself according to EMC Directive.

■

UL Certificate

UL File No. E120439 (Category: NRNT2/NRNT8)

•

Use the power supply with Class 2 output defined in NFPA70
(NEC: National Electrical Code).

•

GT2 series are evaluated as open type devices. These products
can not be a part of an enclosure.

1

EMS: EN61326-1

GT2-70-M-E

Package Contents

MODE

SE

T

SET

HI

P-H

B-H

P-P

CALC

GO

LO

1
2
3

HI

PV

SERIES

P
R

E
S
E

T

L
O

TIM

GT2-71N/71P/71CN/71CP (Main unit)
GT2-71MCN/71MCP (Main unit analog output)

MODE

S
E

T

SET

HI

P-H

B-H

P-P

CALC

GO

LO

1
2
3

HI

PV

SERIES

P
R

E
S
E

T

L
O

TIM

GT2-72N/72P/72CN/72CP
(Expansion unit)

Amplifier x 1

Head connector label x 1
*Used for the calculation only mode.

Amplifier x 1

Instruction manual x 1

Amplifier x 1

GT2-71D (Pulse output)

Instruction manual x 1

Switch cover label x 1

GT2-CA2M/CA10M

GT2-75N/75P (Main unit)

Amplifier x 1

Power cable (2 m) x 1
(Number of conductors: 12)

Front protective cover x 1

Instruction manual x 1

Panel mounting bracket x 1

GT2-76N/76P (Expansion unit)

Amplifier x 1

Panel mounting bracket x 1

Front protective cover x 1

I/O cable (2 m) x 1
(Number of conductors: 10)

Expansion cable (50 mm) x 1

P
RE
S

E
T

TIM

HI

HI

P‑H

B‑H

P‑P

CALC

LO

GO

LO

RV

1
2
3

PRESET

TIM

HI

HI

P
‑

H

B

‑
H

P
‑
P

CALC

LO

GO

LO

RV

1
2
3

Head connector label x 1
*Used for the calculation only mode.

GT2-P12K/P12

GT2-H12KF/H12F

GT2-H12KLF/H12LF

GT2-P12KL/P12L GT2-PA12K/PA12GT2-P12KF/P12F

Nut x 1
Key spanner x 1

GT2-H12K/H12

GT2-H12KL/H12L

Sensor head x 1 Sensor head x 1
Precautions on Handling x 1 Precautions on Handling x 1

GT2-A12KL/A12L

Sensor head x 1
Precautions on Handling x 1

GT2-H32 GT2-H32L

Sensor head x 1 Sensor head x 1
Precautions on Handling x 1 Precautions on Handling x 1

GT2-A12K/A12

Sensor head x 1
Precautions on Handling x 1

Sensor head x 1 Sensor head x 1
Precautions on Handling x 1 Precautions on Handling x 1

Sensor head x 1
Precautions on Handling x 1

Nut x 1
Key spanner x 1

Sensor head x 1
Precautions on Handling x 1

Nut x 1
Key spanner x 1

Sensor head x 1
Precautions on Handling x 1

Sensor head x 1
Precautions on Handling x 1

GT2-A32

Sensor head x 1
Precautions on Handling x 1

GT2-H50

Sensor head x 1
Precautions on Handling x 1

GT2-A50

Sensor head x 1
Precautions on Handling x 1

(1)

(2)

(3)

Fixture: OP-76877

Main unit

Connector

Expansion unit

End unit

End unit

The product package of each model should include the following items.
Check that all items are included before use.

■

Amplifier parts

●

DIN rail mount type

●

Amplifier connection cable

Use for connector type amplifiers (GT2-71CN/71CP/72CN/72CP/
71MCN/71MCP).

●

Panel mount type

●

Sensor head connection cable

GT2-CH2M/5M/10M/20M
(M8 straight connector)

NOTICE

We have taken all possible precautions in packaging; however, if
any parts are found to be defective or broken, please contact your

GT2-CHL2M/5M/10M/20M
(M8 L-shaped connector)

• The M8 L-shaped connector type cable cannot be
used with the GT2-H32(L)/H50/A32/A50.

• When a protection rating of IP67G and NEMA Type 13
enclosure is required for GT2-P12K(F)/P12(F), or a
protection rating of IP67G is required for GT2-PA12K/
GT2-PA12 use an M8 oil-resistant straight connector
type cable. Other cables do not meet the IP67G
protection rating or NEMA Type 13 enclosure rating.

GT2-CHP2M/5M/10M
(M8 oil-resistant straight connector)

nearest KEYENCE sales office.

Mounting the Amplifier and Wiring

■

Mounting the amplifier

●

DIN rail mount type (Main unit)

This section describes how to mount the DIN rail mount type:
(Main unit: GT2-71(C)N/71(C)P/71MCN/71MCP)

1

Fit the tab of the lower par t of the main unit to
the DIN rail. While inserting the main unit in
the direction of Arrow (1), push the body
down in the direction of Arrow (2).

2

To detach the amplifier, while pushing the main unit in the direction
of Arrow (1), pull the body up in the direction of Arrow (3).

When using a fixture (Optional item: OP-76877), mount as shown below.

■

Sensor head parts

●

Sensor head

GT2-70-M-E

●

DIN rail mount type (Expansion unit)

This section describes how to mount the DIN rail mount type
(Expansion unit: GT2-72N/72P/72CN/72CP).
The expansion unit can only be used in addition to the main unit.
Up to 14 expansion units can be added to one main unit.

• When adding an amplifier (expansion unit), be sure
the power of both main and expansion units is OFF
before operation. Mounting when the power is ON
may damage the equipment.

• Be sure to completely connect an expansion unit to a
main unit. Oblique or improper connections may
damage the equipment.

• When connecting expansion units, some of the

NOTICE

1

Detach the expansion cover of the main unit.

2

Mount the expansion unit to be added to the DIN rail.

specifications are restricted depending on the
number of units to be connected. Refer to page 14,
"Specifications" for details for details.

• An expansion unit of different output type cannot be
added (for example, an expansion unit of NPN output
cannot be added to a main unit of PNP output).

• No expansion unit can be connected to the pulse
output type (GT2-71D).

• An expansion unit of the DIN rail mount type cannot
be added to a main unit of the panel mount type.

Main unit

Expansion cover

Refer to above, "DIN rail mount type", for details about how to mount.

3

Push and fix the expansion unit to the connector of the main unit until it clicks.

4

Mount the end units (OP-26751: a set of two pieces) sold
separately on both sides of the amplifiers (the main unit and
the expansion unit), then fix the end units with screws on the
upper part of each end unit (2 points x 2 units).

The mounting method of the end unit is the same as that of the amplifier.

2

●

69.5 min.

21

45

+0.4

-0

Panel cut dimension

X=24 x (Number of amplifiers -1)+21

Panel thickness of mounting area
1 to 6 mm

(unit: mm)

X

45

Front protective cover

Amplifier

Panel

Panel mounting bracket

Tab

Expansion cable

Expansion
cable

Reference

Power cable

(When connecting the power cable)

click

Brown

Blue

Black

White

Gray

Orange

Green

Pink

Violet

Pink/Violet

Ye l l ow

Red

* Available only on the GT2-72CN/72CP (Quick disconnect type).

Not connected *

Not connected *

HIGH output

LOW output

GO output

HH output

LL output

PRESET input

BANK A input

TIMING input

BANK B input

RESET input

Panel mount type (Main unit)

This section describes how to mount the panel mount type:
GT2-75N/75P (Main unit).

1

Create a panel opening for mounting referring to the dimensions below.

2

Insert the main unit, back end first, into the opening of the panel.

3

Insert the panel mounting bracket in the direction shown below into the main
unit from the back, then fit the front protective cover to the main unit face.

To detach the panel mounting bracket, pull it while
pushing apart the tabs provided on its both ends.

●

Panel mount type (Expansion unit)

This section describes how to mount the panel mount type:
GT2-76N/76P (Expansion unit).
The expansion unit can only be used in addition to the main unit.
Up to 14 expansion units can be added to one main unit.

• Turn OFF the power before connecting the expansion
cable. Inserting or pulling the cable when the power
is turned ON may damage the equipment.

• Be sure to completely connect the expansion cable.
Oblique or improper connections may damage the
equipment.

• When connecting expansion units, some of the

NOTICE

1

Create panel openings for mounting according to the number of

specifications are restricted depending on the
number of units to be connected. Refer to Page 14,
"

Specifications

• An expansion unit of different output type cannot be
added (for example, an expansion unit of NPN output
cannot be added to a main unit of PNP output).

• An expansion unit of the panel mounting type cannot
be added to a main unit of the DIN rail mounting type.

expansion units to be mounted (the expansion unit to be added).

Refer to above, "Panel mount type (Main unit)", for details about
panel cut dimensions.

2

Mount the amplifier (the expansion unit to be added) to the panel.

Refer to above "Panel mount type (Main unit)", for details about how
to mount.

3

Connect the amplifiers (the main unit and the expansion unit) with an
expansion cable.

When installing the amplifier side by side, the 300 mm

NOTICE

expansion cable (OP-35361) is required. If using even
one 300 mm expansion cable, the number of expansion
units is limited to four.

" for details.

■

Wiring of amplifier

NOTICE

●

How to connect the power cable to the DIN-mount quick disconnect type

Insulate unused I/O wires individually.

Quick disconnect type amplifiers must be connected with the power
cable (I/O cable) GT2-CA2M/CA10M (sold separately).

click

Connect the cables with
the white points aligned

(When connecting the power cable) (When disconnecting the power cable)

●

How to connect the power cable to the panel mount type

The accessory power cable (I/O cable) must be connected to the
amplifier of the panel mount type.

(When disconnecting the power cable)

• The number of power (I/O cable) conductors is different
between the main unit and the expansion unit (Main unit:
12 conductors, Expansion unit: 10 conductors).

• The power of the expansion unit is supplied through the
expansion cable being connected to the main unit.

●

Power cable (I/O cable)

The following illustrates the power cable (I/O cable) (also applicable
to the panel mount type).
Refer to Page 15 of this manual for details about I/O circuits.

GT2-71N/71P/71CN/71CP (Main unit)

Brown

Blue

Black

White

Gray

Orange

Green

Pink

Violet

Pink/Violet

Ye l l ow

Red

* Supply 20-30V DC power when using expansion units.

10-30 V *

HIGH output

LOW output

GO output

HH output

LL output

PRESET input

BANK A input

TIMING input

BANK B input

RESET input

GT2-72N/72P/72CN/72CP (Expansion unit)

GT2-71MCN/71MCP (Analog output)

Brown

Blue

Black

White

Gray

Orange

Green

Pink

Violet

Pink/Violet

Ye l l ow

Red

20-30 V

HIGH output

LOW output

GO output

Analog output

Analog GND

PRESET input

BANK A input

TIMING input

BANK B input

RESET input

GT2-71D (Pulse output)

Brown

Blue

Black

White

Orange

Violet

Gray

Green

Pink

10-30 V

A phase

B phase

Z phase

­A phase

­B phase

­Z phase

Current position returning input

3

GT2-70-M-E

Connecting and Mounting the Sensor Head

NOTICE

Operation indicator

Relay connector

Cable
connector

Dust boot

Mounting fixture

Dust boot

※

Spindle

Contact

Dust boot

●

GT2-P12K(L)/P12(L)

●

GT2-P12KF/P12F

Cable between
the sensor
head and relay
connector

●

GT2-PA12K/PA12

Relay connector

Cable
connector

Cable
connector

Cable
between the
sensor head
and relay
connector

Operation indicator

Cable between
the sensor
head and relay
connector

Mounting fixt ure

Operation indicator

Contact

Spindle

Air supply hole

Dust seal

NOTICE

Arrow

Unlocked

Click

Lock cover

Locked

Lock cover

Orient the connector so that the lock lever is at the left side.

Unlocked

Lock cover

Click

Locked

Lock cover

Tightening sleeve

Key wrench

Nut

Optional head mounting
bracket D (OP-84327)

●

GT2-P12K(L)/P12(L)/PA12K/PA12/

H12K(L)/H12(L)/A12K(L)/A12(L)

●

GT2-H32(L)/H50/A32/A50

NOTICE

When mounting the GT2­H32L facing upward, be
sure to use the mounting
holes on the side of the
sensor head. If the
sensor head is mounted
using head mounting
bracket D, the spindle
may not fully extend.

Mounting
illustration

■

Names of parts of the sensor head

* Not included in the GT2-P12KL/P12L.

●

GT2-H12K(L)(F)(LF)/H12(L)(F)(LF)/H32(L)/H50

Cable connector

Head indicator

Cable connector

Head indicator

●

For units other than GT2-P***/PA***

1

Insert the sensor head connection
cable into the cable connector of the
sensor head.

2

Secure the connector by rotating the
grooved portion.

• When connecting the connector, be sure to insert it
straight, and tighten it securely. (Recommended
tightening torque: 0.4 to 0.5 N·m*)
If the connection is not tight enough, the connector
may be loosened by vibration or other causes,
leading to a connection failure.
(* After tightening it firmly by hand, use pliers or other
tools to rotate it about 30

• The M8 L-shaped connector (GT2-CHL*M) cannot be
used with the GT2-H32(L)/H50/A32/A50.

o

for further tightening.)

To disconnect the sensor head connection cable, reverse the steps above.

■

Connecting the amplifier

●

DIN rail mount type

1

Remove the lock cover of the connector of the sensor head
connection cable, and insert the sensor head connection cable
into the connector on the side of the amplifier until it clicks.

Dust boot

mounting fastener*

*1 A mounting bracket is attached to

GT2-H12KF/H12F/H12KLF/H12LF.

*2 Not included in the GT2-H12KL/H12L/H12KLF/H12LF.

●

GT2-A12K(L)/A12(L)/A32/A50

Head indicator

Mounting fixture

Dust boot*

* Not included in the GT2-A12KL/A12L.

■

Connecting the sensor head connection cable

●

For GT2-P***/PA***

1

Insert the sensor head connection cable

1

2

Dust boot*

Contact

Coupling socket

Cable connector

Contact

Spindle

Head indicator

Air cylinder

Exhaust valve

Dust boot

Spindle

Contact

*3 Not included in the GT2-H32L.

Coupling socket

Air cylinder

Cable connector

Contact

Contact

into the cable connector on the relay
connector cable.

2

Secure the connector with the sensor
head connection cable screw.

mounting fastener

3

Dust boot*

Contact

Exhaust valve

Mounting fixture

Dust boot

To disconnect the sensor head connection cable,

NOTICE

2

Put the lock cover on the connector, and lock the lock cover.

●

Panel mount type

1

Remove the lock cover of the connector of the sensor head
connection cable, and insert the sensor head connection cable into
the connector on the back of the amplifier until it clicks.

NOTICE

2

Put the lock cover on the connector, and lock the lock cover.

■

Mounting the sensor head

●

Mounting directly to the jig

Before mounting the sensor head directory to the jig, create a hole in the
jig. Attach the sensor head using the optional head mounting bracket
sold separately. A mounting bracket is provided with the GT2-P12KF/
P12F/H12K(L)F/H12(L)F as standard. Attach it with the supplied nut.

press and hold the lock lever on the side of the
connecter and disconnect the cable.

To disconnect the sensor head connection cable,
press and hold the lock lever on the side of the
connecter and disconnect the cable.

GT2-70-M-E

•W

hen connecting the connector, be sure to insert it
straight, and tighten it securely. (Recommended
tightening torque: 0.4 to 0.5 N•m*)
If the connection is not tight enough, the connector
may be loosened by vibration or other causes,
leading to a connection failure.
(* After tightening it firmly by hand, use pliers or other
tools to rotate it about 30° for further tightening.)

• When the head is attached to a moving part, and the
cable will be repeatedly bent, ensure that the cable
between the sensor head and relay connector does
not bend. Instead, bend the sensor head cable
connecting the relay connector and the amplifier.

Optional head mounting
bracket A (OP-76874)

Tightening sleeve

Key wrench

Optional head mounting
bracket C (OP-84396)

Tightening sleeve

Key wrench

Nut

Nut

4

1

φ10

+0.005

+0.1

0.5 × 45°
recession

5.5 〜11

Nut
mounting
side

Sensor head

insertion side

(Unit: mm)

●

GT2-P12K(L)/P12(L)/PA12K/PA12/

H12K(L)/H12(L)/A1K2(L)/A12(L)

●

GT2-H32(L)/H50/A32/A50

●

GT2-P12KF/P12F/H12K(L)F/H12(L)F

Sensor head

Chamfered side

Nut

Key wrench

Dust boot

Wrench

8.5



8

+

0

.

2

0

0

+

0

.

0

0

5

M

4

x

0

.

7

Make sure that the metal plating
mounting bracket F attaches to is made
of SUS (SUS303 reco mmended) and is
at least 5 mm thick.

•

GT2-P12K(L)/P12(L)/PA12K/PA12

Mounting illustration

Nut

Wrench

Dust boot

Cut the jig to create a sensor head mounting hole referring to the
illustration below.

3

Align mounting bracket F with the hole made in step 1 and secure it
using the supplied hexagonal wrench.

*2

0.5 to 1.0

±1°

45°

Tightening
sleeve

*1

+0.027

+0.005

( )

φ10 G8

*1 For head mounting bracket C *2 Processing accuracy : ±0.05

+0.1

φ10

+0.005

2

Insert the tightening sleeve into the hole (from the Chamfered side),

insertion
side

φ0.025

A

Nut
mounting
side

5.5 to 11.3

A

(Unit: mm)

+0.1

+0.006

φ14

*2

45°

Tightening
sleeve
insertion
side

φ0.025

0.5 to 1.0

±1°

A

and loosely tighten with the nut.

Tightening sleeve

Nut

In the illustration on the left above, if the nut is fully

NOTICE

3

Insert the sensor head in the tightening sleeve. While securing the tightening

tightened when the sensor head is not yet inserted, the
fixture will become deformed.

Chamfered side

sleeve with the included key wrench, tighten the nut with a separate wrench.

A

Nut
mounting
side

5.5 to 11.3

(Unit: mm)

*2

*2

4

Insert the sensor head, and tighten the screw loosened in step
2 using the supplied hexagonal wrench to secure. The
recommended tightening torque is 0.6 to 0.8 N•m. Make sure
that the dust boot does not obstruct the metal plating that
mounting bracket F is attached to.

• Make sure that the dust boot does not become
damaged during the procedure.

• When loosening the screw with the hexagonal wrench,

NOTICE

●

Mounting on the side of a surface

When mounting to the side of a GT2-P12K(L)/P12(L)/PA12K/PA12/H12K(L)/H12(L)/
A12K(L)/A12(L) unit, use the optional head mounting bracket B (OP-76875).

1

Insert the tightening sleeve into the mounting bracket from the side

insert the long end of the hexagonal wrench into the
hex screw and rotate the small end with your hand.

• Do not forcibly tighten the hex screw.

• Cannot be used with GT2-P12KF/P12F/H***/A***.

Optional head mounting bracket B
(OP-76875)

Tightening sleeve Nut Mounting bracket

with a depression, and loosely tighten with the nut.

Tightening sleeve

Mounting bracket

Tightening the nut while fixing the sensor head may
lead to damage.

• The tightening torque for mounting bracket A (OP-76874),
mounting bracket C (OP-84396), and the nuts supplied with
GT2-H12K(L)F/H12(L)F/P12KF/P12F is between 5 and 7 N•m

NOTICE

4

Rotate the dust boot so that the side line is straight. (Models other
than GT2-PA12K/PA12)

Check with the spindle pushed in.

NOTICE

●

Using mounting bracket F

1

Refer to the illustration below and cut the jig to create a sensor head
mounting hole.

(the recommended tightening torque is 5 N•m). Apply
tightening torque between 15 and 18 N•m (20 to 23 N•m
when using the GT2-A32/A50) to head mounting bracket D
(OP-84327). Use the wrench that matches the nut width.

• Care must be taken not to damage the dust boot
when tightening.

If the dust boot is not straight, it becomes easier to
damage when the spindle is moved.

Nut

• If the sleeve is inserted from the wrong side, the
sensor head cannot be secured.

• Strongly tightening the nut without the sensor head

NOTICE

2

Insert the sensor head into the tightening sleeve, and tighten

inserted may deform the tightening nut.

• Head mounting bracket B cannot be used in
combination with head mounting bracket C (OP-

84396) or head mounting bracket D (OP-84327).

Notice the correct angle of the tightening sleeve.

the nut with a wrench.

Tightening the nut while fixing the sensor head may
lead to damage.

NOTICE

3

Secure the sensor head with M4 screws.

Mount the sensor head with the model label on top. For GT2-P12K (L)/
P12 (L)/PA12K /PA12, mount so that the head indicator is on top.

• Apply a tightening torque of 5 to 7 N•m (the
recommended tightening torque is 5 N•m).
Use the wrench that fits the width of the nut.

• Care must be taken not to damage the dust boot when tightening.

M4 screws

2

Loosen the screw on the side of mounting bracket F using the
supplied hexagonal wrench.

NOTICE

4

Rotate the dust boot so that the side line is straight. (Models other
than GT2-PA12K/PA12)

• Never apply tightening torque over 1.4 N•m.

• Care must be taken not to damage the dust boot when tightening.

Check with the spindle pushed in.

NOTICE

If the dust boot is not straight, it becomes easier to
damage when the spindle is moved.

5

GT2-70-M-E