High-Accuracy Digital Contact Sensor

GT2 series

Select Language

Model

GT2-500

GT2-550

Mounting type

DIN-rail mount*1

Main unit/Expansion unit

Main unit

Expansion unit

Power supply voltage

20 to 30 VDC, including 10% ripple (P-P) (GT2-550 power supplied from the main unit), Class 2

Response time

hsp (3)/5/10/100/500/1000 ms
(When using GT2-Pxxx, hsp (12)/20/40/400/2000/4000 ms)

Number of expandable units

Maximum of 3 units including the main unit
(Maximum of 15 sensor heads)*2

Rating

Current consumption

4800 mW
160.0 mA or less at 30V

Environmental
resistance

Ambient temperature

-10 to +50°C

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectivety, 2 hours

Materials

Main body

Main body case: polycarbonate, Cable: PVC

Weight

Approx. 140 g

Approx. 95 g

*1 When connecting the DL Series and expansion units, always connect them when the amplifier units is connected to the DIN-rail and use the end unit (OP-26751 included with the DL Series).
*2 When using the DL-RB1A (for communication), ensure that the output cuurents is 10 mA or less.

Model

GT2-H12K

GT2-H12KF

GT2-H12KL

GT2-H12KLF

Detection system

Scale Shot System, absolute (no tracking errors) type

Measuring range

12 mm

Resolution

0.1 μm

Indicated accuracy

1 µm (p-p)*1

Measuring force

Downward mounting

1.0 N*2

0.4 N*2

Side mounting

0.9 N*2

0.3 N*2

Upward mounting

0.8 N*2

0.2 N*2

Mechanical response

10 Hz*1

4 Hz*1

Operation indicator light

2-colour LED (red, green)

Environmental
resistance

Enclosure rating

IP67 (IEC)

-

Ambient temperature

-10 to +55°C (No freezing)

-10 to +55°C (No freezing)

-10 to +55°C (No freezing)

-10 to +55°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Materials

Main body

Main body case: die-cast zinc, Indicator: polyarylate (PAR)

Dust boot

NBR

-

Contact

SUS304, cemented tungsten carbide*3

Sensor head cable

Optional (connect to the M8 connector)

Weight

Approx. 95 g (not including cable)

Approx. 100 g (not including cable)

Approx. 95 g (not including cable)

Approx. 100 g (not including cable)

*1 Value when the ambient temperature is 20°C.
*2 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.
*3 Contacts are available as options sold separately.

Model

GT2-H32

GT2-H32L

GT2-H50

Detection system

Scale Shot System, absolute (no tracking errors) type

Measuring range

32 mm

50 mm

Resolution

0.5 μm

Indicated accuracy

3 µm (p-p)*1

3 µm (p-p)*4

3.5 µm (p-p)*1

Measuring force

Downward mounting

2.1 N*2

1.2 N*2

3.2 N*2

Side mounting

1.8 N*2

0.9 N*2

2.8 N*2

Upward mounting

1.5 N*2

0.6 N*2

2.4 N*2

Mechanical response

6 Hz*1

5 Hz*1

7 Hz*1

Operation indicator light

2-colour LED (red, green)

Environmental
resistance

Enclosure rating

IP67 (IEC)

-

IP67 (IEC)

Ambient temperature

-10 to +55°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Materials

Main body

Main body case: die-cast zinc, Indicator: polyarylate (PAR)

Dust boot

NBR

-

NBR

Contact

SUS304, SUS440C*3

Sensor head cable

Optional (connect to the M8 connector)

Weight

Approx. 270 g (not including cable)

Approx. 320 g (not including cable)

*1 Value when the ambient temperature is 20°C.
*2 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.
*3 Contacts are available as options sold separately.
*4 Values at surrounding temperature of 20°C

Model

GT2-A12K

GT2-A12KL

GT2-A12

GT2-A12L

Detection system

Scale Shot System, absolute (no tracking errors) type

Measuring range

12 mm

Resolution

0.1 μm

0.5 μm

Indicated accuracy

1 µm (p-p)*1

2 µm (p-p)*1

Measuring force

Downward mounting

1.2 N*2

0.4 N*2

1.2 N*2

0.4 N*2

Side mounting

1.1 N*2

0.3 N*2

1.1 N*2

0.3 N*2

Upward mounting

1.0 N*2

0.2 N*2

1.0 N*2

0.2 N*2

Applied pressure range

0.25 MPa to 0.50 MPa

Pressure resistance

1 MPa

Operation indicator light

2-colour LED (red, green)

Environmental
resistance

Enclosure rating

IP67 (IEC)*3

-

IP67 (IEC)*3

-

Ambient temperature

0 to +55°C (no freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Materials

Main body

Main body case: die-cast zinc, Cylinder section: aluminium alloy, Air joint resin: polyacetal, Air joint metal: nickel-plated brass, Indicator: polyarylate (PAR)

Dust boot

NBR

-

NBR

-

Contact

SUS304, cemented tungsten carbide*4

SUS304, SUS440C*4

Sensor head cable

Optional (connect to the M8 connector)

Weight

Approx. 145 g (not including cable)

*1 Value when the ambient temperature is 20°C.
*2 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.
*3 Connect an exhaust joint to the air tube and ensure that foreign matter does not enter the tube from joint.
*4 Contacts are available as options sold separately.

Model

GT2-P12K*1

GT2-P12KF*1

GT2-P12KL*1

GT2-P12*1

GT2-P12F*1

GT2-P12L*1

Detection system

Scale Shot System II, absolute (no tracking errors) type

Measuring range

12 mm

Resolution

0.1 μm

0.5 μm

Indicated accuracy

1 µm (p-p)*2

2 µm (p-p)*2

Measuring force

Downward mounting

1.0 N*3

0.2 N*3

1.0 N*3

0.2 N*3

Side mounting

0.95 N*3

0.15 N*3

0.95 N*3

0.15 N*3

Upward mounting

0.9 N*3

0.1 N*3

0.9 N*3

0.1 N*3

Sampling cycle

4 ms

Mechanical response

10 Hz*2

4 Hz*2

10 Hz*2

4 Hz*2

Operation indicator light

2-colour LED (red, green)

Environmental
resistance

Enclosure rating

IP67G (JIS)*4
IP67 (IEC)
NEMA Type 13*4

-

IP67G (JIS)*4
IP67 (IEC)
NEMA Type 13*4

-

Ambient temperature

-10 to +55°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Impact resistance

1000 m/s2(IEC60068-2-27)

Materials

Main body

Main body case: SUS 303, Status indicator: PET, Sensor head-relay connector cable: PUR, Relay connector: PBT, Spindle of GT2-PA12K/PA12: SUS430 (Fluorine coating)

Dust boot

NBR

-

NBR

-

Contact

SUS304, cemented tungsten carbide*5

SUS304, SUS440C*5

Sensor head cable

Optional (connect to relay connector)

Weight

Approx. 35 g (not including cable)*6

Approx. 45 g (not including cable)*6

Approx. 35 g (not including cable)*6

Approx. 45 g (not including cable)*6

Approx. 35 g (not including cable)*6

*1 Note: You may not be able to connect the sensor head to the amplifier unit depending on when the amplifier unit was purchased.For details, contact your local sales office.
*2 Value when the ambient temperature is 20°C.
*3 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.
This is a representative value when using the GT2-PA12K/PA12 with a pressure of 0.25 MPa. The measuring force varies depending on the air pressure used. For details, see table 1.
No dust boots are used with the GT2-PA12K/PA12.
*4 When an M8 oil-resistant cable (GT2-CHP2M/CHP5M/CHP10M) is used for the sensor head cable.
*5 Contacts are available as options sold separately.
*6 Including the relay connector.

Model

GT2-PA12K

GT2-PA12

GT2-PA12KL

GT2-PA12L

Detection system

Scale Shot System II, absolute (no tracking errors) type

Measuring range

12 mm

Resolution

0.1 µm

0.5 µm

0.1 µm

0.5µm

Indicated accuracy

1 µm (p-p)*1

2 µm (p-p)*1

1 µm(P-P)*1

2 µm(P-P)*1

Measuring force

Downward mounting

1.2 N*2

0.4N*5

Side mounting

1.15 N*2

0.35N*5

Upward mounting

1.1 N*2

0.3N*5

Sampling cycle

4 ms

4ms

Applied pressure range

0.24 MPa to 0.26 MPa

0.05MPa to 0.07MPa

Pressure resistance

0.5 MPa

Fluid used

Clean dry air

Operation indicator light

2-colour LED (red, green)

2-color LED (red, green)

Environmental
resistance

Enclosure rating

IP67 (IEC)

-

Ambient temperature

0 to +55°C (No freezing)

0 to 55°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Impact resistance

1000m/s2 (IEC60068-2-27)

Materials

Main body

Main body case: SUS 303, Status indicator: PET,
Sensor head-relay connector cable: PUR, Relay connector: PBT,
Spindle: SUS430 (Fluorine coating)

Main body case: SUS 303, Status indicator: PET,
Sensor head-relay connector cable: PUR, Relay connector: PBT

Contact

SUS304, cemented tungsten carbide*3

SUS304, SUS440C*3

SUS304, cemented tungsten carbide*3

SUS304, SUS440C*3

Sensor head cable

Optional (connect to relay connector)

Weight

Approx. 35 g (not including cable)*4

Approx 35 g (not including cable)*4

*1 Value when the ambient temperature is 20°C.
*2 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.
This is a representative value when using the GT2-PA12K/PA12 with a pressure of 0.25 MPa. The measuring force varies depending on the air pressure used. For details, see table 1.
No dust boots are used with the GT2-PA12K/PA12.
*3 Contacts are available as options sold separately.
*4 Including the relay connector.
*5 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.This is a representative value when using the GT2-PA12KL/PA12L with a pressure of 0.06MPa. The measuring force varies depending on the air pressure used. For details, see table 1.No dust boots are used with the GT2-PA12KL/PA12L.

Model

GT2-H12

GT2-H12F

GT2-H12L

GT2-H12LF

Detection system

Scale Shot System, absolute (no tracking errors) type

Measuring range

12 mm

Resolution

0.5 μm

Indicated accuracy

2 µm (p-p)*1

Measuring force

Downward mounting

1.0 N*2

0.4 N*2

Side mounting

0.9 N*2

0.3 N*2

Upward mounting

0.8 N*2

0.2 N*2

Mechanical response

10 Hz*1

4 Hz*1

Operation indicator light

2-colour LED (red, green)

Environmental
resistance

Enclosure rating

IP67 (IEC)

-

Ambient temperature

-10 to +55°C (No freezing)

-10 to +55°C (No freezing)

-10 to +55°C (No freezing)

-10 to +55°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Materials

Main body

Main body case: die-cast zinc, Indicator: polyarylate (PAR)

Dust boot

NBR

-

Contact

SUS304, SUS440C*3

Sensor head cable

Optional (connect to the M8 connector)

Weight

Approx. 95 g (not including cable)

Approx. 100 g (not including cable)

Approx. 95 g (not including cable)

Approx. 100 g (not including cable)

*1 Value when the ambient temperature is 20°C.
*2 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.
*3 Contacts are available as options sold separately.

Model

GT2-A32

GT2-A50

Detection system

Scale Shot System, absolute (no tracking errors) type

Measuring range

32 mm

50 mm

Resolution

0.5 μm

Indicated accuracy

3 µm (p-p)*1

3.5 µm (p-p)*1

Measuring force

Downward mounting

2.1 N*2

3.2 N*2

Side mounting

1.8 N*2

2.8 N*2

Upward mounting

1.5 N*2

2.4 N*2

Applied pressure range

0.25 MPa to 0.50 MPa

Pressure resistance

1 MPa

Fluid used

Dry air

Operation indicator light

2-colour LED (red, green)

Environmental
resistance

Enclosure rating

IP67 (IEC)*3

Ambient temperature

0 to +55°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours*4

Materials

Main body

Main body case: die-cast zinc, Cylinder section: aluminium alloy, Air joint resin: polyacetal, Air joint metal: nickel-plated brass, Indicator: polyarylate (PAR)

Dust boot

NBR

Contact

SUS304, SUS440C*5

Sensor head cable

Optional (connect to the M8 connector)

Weight

Approx. 340 g (not including cable)

Approx. 405 g (not including cable)

*1 Value when the ambient temperature is 20°C.
*2 Representative value at the centre of the measuring range. Please note that the measuring force varies by the installation state of the dust boot.
*3 Connect an exhaust joint to the air tube and ensure that foreign matter does not enter the tube from joint.
*4 When using mounting bracket D (OP-84327), the double amplitude is 0.75 mm.
*5 Contacts are available as options sold separately.

Model

NPN

GT2-71N

GT2-72N

GT2-71CN

GT2-72CN

GT2-71MCN

PNP

GT2-71P

GT2-72P

GT2-71CP

GT2-72CP

GT2-71MCP

Mounting type

DIN-rail mount*1

Main unit/Expansion unit

Main unit

Expansion unit*2

Main unit

Expansion unit*2

Main unit

Power supply voltage

10 to 30 VDC, including 10% ripple (P-P), Class 2*2

10 to 30 VDC, including 10% ripple (P-P), Class 2

10 to 30 VDC, including 10% ripple (P-P), Class 2*2

20 to 30 VDC, including 10% ripple (P-P), Class 2*2

Power consumption

Normal

2200 mW or less (73.3 mA or less at 30 V)

2700 mW or less (90.0 mA or less at 30 V)

Power saving (Eco)

Eco half: 1800 mW or less (60.0 mA or less at 30 V), Eco all: 1700 mW or less (56.7 mA or less at 30 V)

Eco half: 2300 mW or less (76.7 mA or less at 30 V), Eco all: 2200 mW or less (73.3 mA or less at 30 V)

Display range

-199.999.9 to 199.999.9

Display resolution

0.1 μm

Control input

Timing/preset/
reset/bank input

No-voltage input

Control output

HH/HI/GO/LO/LL

NPN

NPN open collector, 40 V 50 mA or less, residual voltage 1 V or less*2*3

PNP

PNP open collector, 30 V 50 mA or less, residual voltage 1 V or less*2*3

Analogue output

-

4 to 20 mA with a max. load resistance of 350 Ω
Set response time + 1 ms

Response time

hsp (3)/5/10/100/500/1000 ms (When using GT2-Pxxx, hsp (12)/20/40/400/2000/4000 ms)

Environmental
resistance

Ambient temperature

-10 to +50°C (No freezing)*2

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Materials

Main body case/front cover: polycarbonate (PC), Key top: polyacetal (POM),
Front sheet: polyethylene terephthalate (PET), Cable: polyvinyl chloride (PVC)

Weight

Approx. 140 g (including power supply cable)

Approx. 70 g (not including the GT2-CA2M/CA5M/CA10M)

*1 When using the DIN-rail mount type, always mount it to a DIN-rail (mounted to a metal plate), and when adding expansion units, always use the end unit (OP-26751).
*2 When adding expansion units, there are the following restrictions according to the number of connected units.
[When 2 to 8 units are connected including the main unit]
Power supply voltage: 20 to 30 VDC, Control output current: 20 mA or less, (GT2-71MCN(P) only) Ambient temperature: -10 to 45°C
[When 9 to 15 units are connected including the main unit]
Power supply voltage: 20 to 30 VDC, Control output current: 10 mA or less (including the DL-RB1A output current), Residual voltage: 1.5 V or lower, (GT2-71MCN(P) only) Ambient temperature: -10 to 45°C
*3 The GT2-71MCN(P) does not have HH/LL.

Model

NPN

GT2-75N

GT2-76N

GT2-100N

GT2-E3N

PNP

GT2-75P

GT2-76P

GT2-100P

GT2-E3P

Mounting type

Panel mount*1

Panel mount

-

Main unit/Expansion unit

Main unit

Expansion unit*2

-

Power supply voltage

10 to 30 VDC, including 10% ripple (P-P), Class 2*2

20 to 30 VDC, including 10% ripple (P-P), Class 2

Supplied from the GT2-100N/100P

Power consumption

Normal

2200 mW or less (73.3 mA or less at 30 V)

4500 mW or less (150.0 mA or less at 30 V)

Eco half: 4200 mW or less (140.0 mA or less at 30 V), Eco all: 4000 mW or less (133.3 mA or less at 30 V)*4

Power saving (Eco)

Eco half: 1800 mW or less (60.0 mA or less at 30 V), Eco all: 1700 mW or less (56.7 mA or less at 30 V)

Eco half: 3700 mW or less (123.3 mA or less at 30 V), Eco all: 3600 mW or less (120.0 mA or less at 30 V)*4

4000 mW or less (133.3 mA or less at 30 V)

Display range

-199.999.9 to 199.999.9

-

Display resolution

0.1 μm

Control input

Timing/preset/
reset/bank input

No-voltage input

Control output

HH/HI/GO/LO/LL

NPN

NPN open collector, 40 V 50 mA or less, residual voltage 1 V or less*2*3

NPN open collector, 40 V 50 mA or less*5, residual voltage 1 V or less

PNP

PNP open collector, 30 V 50 mA or less, residual voltage 1 V or less*2*3

PNP open collector, 30 V 50 mA or less*5, residual voltage 1 V or less

Response time

hsp (3)/5/10/100/500/1000 ms (When using GT2-Pxxx, hsp (12)/20/40/400/2000/4000 ms)

hsp (3)/5/10/100/500/1000 ms

Environmental
resistance

Ambient temperature

-10 to +50°C (No freezing)*2

-10 to +50°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

10 to 55 Hz Double amplitude 0.15 mm in the X, Y, Z axis directions respectively, 2 hours

Materials

Main body case/front cover: polycarbonate (PC), Key top: polyacetal (POM),
Front sheet: polyethylene terephthalate (PET), Cable: polyvinyl chloride (PVC)

Main body case/front cover: polycarbonate (PC), Key top: polyacetal (POM), Front sheet: polyethylene terephthalate (PET)

-

Weight

Approx. 140 g (including panel mount, front protective cover, power supply cable)

Approx. 380 g

Approx. 80 g

*1 When using the DIN-rail mount type, always mount it to a DIN-rail (mounted to a metal plate), and when adding expansion units, always use the end unit (OP-26751).
*2 When adding expansion units, there are the following restrictions according to the number of connected units.
[When 2 to 8 units are connected including the main unit]
Power supply voltage: 20 to 30 VDC, Control output current: 20 mA or less, (GT2-71MCN(P) only) Ambient temperature: -10 to 45°C
[When 9 to 15 units are connected including the main unit]
Power supply voltage: 20 to 30 VDC, Control output current: 10 mA or less (including the DL-RB1A output current), Residual voltage: 1.5 V or lower, (GT2-71MCN(P) only) Ambient temperature: -10 to 45°C
*3 The GT2-71MCN(P) does not have HH/LL.
*4 When the maximum number of sensor heads is connected, and all devices are set to power saving settings
*5 When 2 or more sensor heads are connected, 20 mA or less.

Model

GT2-71D

Mounting type

DIN-rail mount

Current comsumption

1600 mW (30 V, 53.3 mA max.)

Number of expandable units

Cannot be extended

Indicator lamp

Power supply (green)/Alarm (red) indicator,
pulse output indicator (green), input indicator (green)

Pulse resolution

Selectable from 0.1 μm , 0.5 μm , 1 μm, and 10 μm (Factory setting: 0.5 μm )

Minimum phase difference

Selectable from 0.5 μs, 2.5 μs, 5 μs, and 25 μs (Factory setting: 2.5 μs)

Control input (origin return)

Input time: 20 ms min.

Output signal

90° phase difference, differential square wave (EIA-422 compliant)

Output signal level

+5V, øA, øA-, øB, øB-, øZ, øZ-: Line driver output

Environmental
resistance

Ambient temperature

-10 to +50°C (No freezing)

Relative humidity

35 to 85% RH (No condensation)

Vibration

10 to 55 Hz, 1.5 mm, double amplitude, 2 hours in each of X, Y, and Z directions

Materials

Main body case: Polycarbonate, Cable: PVC

Weight

Approx 110 g (including power supply cable)

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