Post on 09-Mar-2019
High-Accuracy Digital Contact SensorGT2 Series
NEW
Revolutionary technology enables high-accuracy measurement
GT2 Air Push Type
Air push models for stable operation with easy mounting.
[World’s First!]
2
The new GT2 Series provides even higher “error free” accuracy
Adopting the world's fi rst, ground-breaking scale-shot system, the new GT2 Series provides high-accuracy, without speed errors.
KEYENCE's long history of innovation and cutting edge technologies come together in the new GT2 Series.
Formed through a prism
LED parallel light illumination
Free from deformation
Quartz glass scale
Approx. 6 µs shutter speed
CMOS sensor
Detachable Cable
3
CMOS sensor
TransmitterAbsolute value scale
The world’s fi rst, high-speed scale shot* system using a CMOS sensor that scans the absolute value glass scale incorporating different patterns depending on the position
* Shutter speed: Approx. 6 µs, Sampling interval: 1 ms
Resolution Accuracy
0.1 μm 0.004 Mil 1 μm 0.04 Mil
Absolute system
High-accuracy throughout the entire measurement range
Good temperature characteristics
No tracking errors
Absolute position detection
Highest accuracy in its class
KEYENCE introduces new technology World’s fi rst
Advantages of the conventional scale method (pulse counting)
Advantages of the conventional transformer method
W
4
R
Linear ball bearings are used for the spindle to ensure a long service life. * GT2-H12 (L/K/KL), Typical
Even the connector meets the IP67 enclosure rating based on the IEC/JIS standards* Except for the low stress type
Linear ball bearing used
Connector type
Strong rubber
Free-cut
The sensor head cable uses a robot cable that withstands continuous bending.
Load (W): 250 gBend radius: 50 mm 1.97" Bending rate: 30 times/minute (1 time includes left to right to original position)Free cut: can be cut to length
Withstands bending 20 million times without breaking (Typical usage)
The cable can be cut anywhere.90°
Long life
Detecting durability: 20 million times*
Water resistant cable
IP67 enclosure rating
Strength against bending
Flexible free-cut robot cable
Tough and Rugged[ Maintenance cost reduction ]
5
Mounting made easy simply by drilling a 10 mm 0.39" hole.
Flashing lightsThe user can easily identify an operating sensor head.
Press the PRESET button to set to 0.
Example: Enter 0.010.0
A 0.01 mm 0.0004"
tolerance range is automatically
set.
Conventional method
GT2
A slotted jig must be prepared by the user.
Easy installation with a special bracket
Large indicators are convenient when setting up several units.
Enter the tolerance value based on the master target to complete setup.
First,set the reference.
Easy Sensor Head Installation and Setup[ Reduction in the number of installation/setup steps ]
Simple Tolerance Setting[ Fewer steps for setup ]
6
Features of the large display type
Features of the pulse output (line driver output) type
DIN-rail mount Compact, panel mount
Large display panel mount Pulse output
GT2-71N/71PEasy mounting anywhere
GT2-75N/75PFor mounting in a nearby
enclosure
GT2-100N/100PEasy-to-see large display
GT2-71D For outputting position
data as pulses
Note: For the DIN-rail mounting type, a connector type and an analog output type are also available.
W: 159.5 mm 6.28"H: 79.8 mm 3.14"
The selected ID number lights in red.
Easy viewing of each individual head’s OK/NG and connection status. (OK/NG status is indicated by red or green, connection status is indicated by a blinking LED.)
Easy selection with the dedicated button
Sensor head selection button
Double the size of a standard display [Character height: 14 mm 0.55"]
Large display
Easy preset operation
Large button
Easy operation with large display and large buttons
Outputs the spindle position data
A single unit can connect several sensor heads (11 heads max.).
All position data can be output together.
Power supply terminal block
Standard I/O (20-pin MIL connector, male)
Expansion board I/O(30-pin MIL connector, male)
Communication unit connection port
Installing the expansion board
Pulse frequency selection[10/50/100/500 kHz]
The expansion board allows for connection of up to 11 sensor heads.
The maximum pulse frequency can be selected according to the input device. The absolute detection ensures accurate position data output to an external device without tracking errors even when a slow pulse frequency is selected.
The absolute detection allows the output of all pulses from the origin to the measurement point without origin return at power-up. Moreover, the operation is free from tracking errors.
Increment/decrement direction
Resolution
Pulse width
Pulse output amplifi er unitGT2-71D
Easy Amplifi er Installation and Setup[ Fewer steps for installation/setup ]
Select the best display unit according to the application
7
Total cost reduction[ Simplifi ed confi guration eliminates the need for analog I/O cards and tedious PLC programming ]
Featuring 5 digital comparator outputs (HH, HI, GO, LO and LL), the GT2 Series can be set up in minutes, not hours.Push-button calibration will leave the user wondering why they hadn’t switched to the GT2 Series sooner.
Using channel select inputs on the GT2 Series, users can easily toggle between up to 4 different sets of HH/HI/LO/LL limits, skipping the extra PLC programming.
Diffi cult and time consuming way:
Conventional Method
GT2 Solution
Easy way:
Easy way:
Analog card
Done
Done
Done
PLC programmingDisplay
HH
HI
GO
LO
LL
Forget about the tedious PLC programming that existing LVDT’s required, the GT2 Series does everything automatically. In addition, the user can save money by eliminating the analog I/O card from the budget.
Analog I/O card not necessary
No additional equipment required
Push-button setup
HH, HI, GO, LO, LL discrete outputs
Quickly select from up to 4 sets of HH/HI/LO/LL limits
Simple product changeover
8
The sensor outputs in the event of a jam when the sensor head is not fully extended.
In actual operation, it is diffi cult to read a displayed value when it changes quickly. With the bar indicator the equipment status can be easily read without reading a displayed value.
When several amplifi ers are connected, the GT2 Series can do automatic calculation simply by selecting a calculation mode.
[Shaft diameter measurement]Positioning the target between two sensor heads will display the outer diameter.
Main unit Expansion unit Calculation result
[Determining pin height]The height difference of a reference value can be displayed by subtracting the value of the main unit (reference) from the value of the Expansion unit.
Expansion unit Main unit Calculation result
[Flatness check]By subtracting the minimum value from the maximum value the fl atness will be displayed.
Maximum value
Minimum value Calculation result
Main unit
Expansion unit
Expansion unit
Expansion unit
Fully extended
Jammed
Maintenance needed Normal Maintenance
needed
HI Limit
Versatile detection modes support all applications
* For details regarding the calculation modes, refer to P.30.
Safe detection LO Limit
Single head
Standard Peak hold Bottom hold Peak to peak
STD P-H B-H P-P
Degree offl atness
Reference difference
Multiple heads/when additional amplifi er units are installed (Application modes)
Maximum Minimum Degree offl atness Average Reference
difference Twist Warpage Thickness
Thickness
Detection of Jam Conditions[ Current condition check ]
Calculations made simple[ Fewer steps for setup ]
Equipment status check displayed by a bar indicator
Sensor defect detection
damage
9
Air push type extends the spindle and measures.[ Easy to set up and saves space. ]
The air push type is part of the high-accuracy digital sensor GT2 Series.
A mechanism to move the sensor head is not necessary since it is possible to measure with a fi xed sensor head,
saving space and reducing labor.
Measuring range
50 mm1.97"
Measuring range
32 mm1.26"
Measuring range
12 mm0.47"
Measuring range
12 mm0.47"
GT2-A50Accuracy: 3.5 µm 0.14 Mil (p-p)
GT2-A32Accuracy: 3 µm 0.12 Mil (p-p)
GT2-A12General purpose typeAccuracy: 2 µm 0.08 Mil (p-p)
GT2-A12KHigh-accuracy typeAccuracy: 1 µm 0.04 Mil (p-p)
Jigs and mechanisms to move the sensor are no longer necessary.
Standard type
Air push type
Linear guide
Dividing jig
Stopper
All jigs unnecessary.
A complex jig is not necessary since there is no sensor head movement. In addition, errors in accuracy due to jigs have been eliminated.
Installation is quick and easy.
A dividing jig is unnecessary. Air is supplied.
Dedicated installation metal fi ttings.
ø4 mm ø0.16" outside diameter air tube.Only needs
a ø10 mm ø0.39" hole. *1
*1 For the 32 mm 1.26" and 50 mm 1.97" type, open a ø14 mm ø0.55" hole.
GT2 Conventional spindle is usually stretched
With the GT2, the spindle moves to the origin when it is not being supplied with air. Even if there is a problem or a condition arises where air is not being supplied, it is safe.
Point 1Spindle compressed in its usual state
Point 2Measuring force is unaffected by the amount of air pressure.
Due to the pressure free construction where air pressure is not directly applied to measurement parts, it is also safe to use with easily damaged workpieces.
10
Versatile detection modes support all applications
Packing insertion check
Confi rms that targets are properly seated.
Board warpage detection
Confi rms if the workpiece warpage meets the acceptable limits.
Measurement of defects in a press fi t
Detecting twist
Judges if the workpiece twisting falls within acceptable limits.
Flatness measurement of an engine block
Single head
Standard Peak hold Bottom hold Peak to peak
STD P-H B-H P-P
Multiple heads
Maximum Minimum Degree offl atness Average Reference
difference Twist Warpage Thickness
Shaft diameter measurement
11
Parallel measurement of a wafer
Volume measurement of a cam lift
Thickness measurement of a liquid crystal substrate
Warp measurement of a mechanical chassis
Thermal expansion measurement of a machine tool
Measurement of a transmission mount
Thickness measurement of a steel plate
Detection of crank shaft runout
Standard Type Air push Type
12
How to select a GT2 Series sensor
GT2 Series LINE-UP
Follow the steps below to select the GT2 Series sensor best suited to your operating environment
from the wide range of units and accessories.
step1
Sensor head
step2
Sensor head cable
step3
Mounting bracket
step4
Display unit (Amplifi er
unit)
step5
Display unit options
step7
Communication unit
step6
Contact
step8
Communication unit options
step 1 Sensor head step 2 Sensor head cable
step 3 Mounting bracket
step 6 Contact
step 4 Display unit
12 mm 0.47" range High-accuracy sensor headGT2-A12K
12 mm 0.47" range High-accuracy sensor headGT2-H12K
12 mm 0.47" range General-purpose sensor headGT2-A12
12 mm 0.47" range General-purpose sensor headGT2-H12
32 mm 1.26" range General-purpose sensor headGT2-A32
32 mm 1.26" range General-purpose sensor headGT2-H32
50 mm 1.97" range General-purpose sensor headGT2-A50
50 mm 1.97" range General-purpose sensor headGT2-H50
12 mm 0.47" range High-accuracy, low stress sensor headGT2-A12KL
12 mm 0.47" range High-accuracy, low stress sensor headGT2-H12KL
12 mm 0.47" range General-purpose, low stress sensor headGT2-A12L
12 mm 0.47" range General-purpose, low stress sensor headGT2-H12L
DIN-rail mount type Amplifi er unitGT2-71N / 71P
BCD Output unitDL-RB1A
RS-232C Communication unitDL-RS1A
Panel mount type Compact amplifi er unitGT2-75N / 75P
Panel mount type Large display amplifi er unitGT2-100N / 100P
DIN-rail mount type Pulse output amplifi er unitGT2-71D32 mm 1.26" range
General-purpose, low stress sensor headGT2-H32L
step 8 Communication unit options
step 7 Communication unit
step 5 Display unit options
NEW
Measuring range Type of accuracy Measuring force Resolution Accuracy
Measuring force*ModelDownward
mountingSide
mountingUpward
mounting
12 mm 0.47"High-accuracy
Standard0.1 µm 0.004 Mil 1 µm 0.04 Mil
1.0 N 0.9 N 0.8 N GT2-H12KLow stress 0.4 N 0.3 N 0.2 N GT2-H12KL
General-purposeStandard
0.5 µm 0.02 Mil 2 µm 0.08 Mil1.0 N 0.9 N 0.8 N GT2-H12
Low stress 0.4 N 0.3 N 0.2 N GT2-H12L
32 mm 1.26"General-purpose
Standard0.5 µm 0.02 Mil
3 µm 0.12 Mil2.1 N 1.8 N 1.5 N GT2-H32
Low stress 1.2 N 0.9 N 0.6 N GT2-H32L50 mm 1.97" Standard 3.5 µm 0.14 Mil 3.2 N 2.8 N 2.4 N GT2-H50
* Value at center of measuring range.
Dust boot (optional accessory for replacement)
Appearance Applicable sensor head ModelGT2-H12
OP-84332GT2-H12KGT2-H32 OP-84459GT2-H50 OP-84460
Standard Type
13
step1
First, select a sensor head.The sensor head is determined by the measuring range, force, and accuracy.
Required
For a wider measuring range For a larger target
Commonly used type
Resolution: 0.5 µm 0.02 MilAccuracy: 3 µm 0.12 Mil (P-P)
Resolution: 0.5 µm 0.02 MilAccuracy: 3.5 µm 0.14 Mil (P-P)
Resolution: 0.1 µm 0.004 MilAccuracy: 1 µm 0.04 Mil (P-P)
Resolution: 0.5 µm 0.02 MilAccuracy: 2 µm 0.08 Mil (P-P)
32 mm 1.26" range
50 mm 1.97" range
12 mm 0.47" range
General-purpose type sensor headGT2-H32
General-purpose type sensor headGT2-H50
High-accuracy type sensor headGT2-H12K
General-purpose type sensor headGT2-H12
General-purpose / Low stress type sensor headGT2-H32L
The low stress type is not available for the 50 mm 1.97" range sensor head.
High-accuracy / Low stress type sensor headGT2-H12KL
General-purpose / Low stress type sensor headGT2-H12L
Low stress type
Low stress type
How to select a GT2 Series
step
For 20 µm 0.79 Mil or less tolerance differentiation
When particularly high-accuracy is not required
High-accuracy Type General-purpose Type
The low stress type does not require a dust boot.
The low stress type uses a low repulsion force spring to reduce the pressure on the target. When using a target that can be easily deformed or damaged, select this type.
What is the low stress type?
Low stress type
How to select a GT2 Series
step
Measuring range Type of accuracy Measuring force Resolution Accuracy
Measuring force*ModelDownward
mountingSide
mountingUpward
mounting
12 mm 0.47"High-accuracy
Standard0.1 µm 0.004 Mil 1 µm 0.04 Mil
1.2 N 1.1 N 1.0 N GT2-A12KLow stress 0.4 N 0.3 N 0.2 N GT2-A12KL
General-purposeStandard
0.5 µm 0.02 Mil 2 µm 0.08 Mil1.2 N 1.1 N 1.0 N GT2-A12
Low stress 0.4 N 0.3 N 0.2 N GT2-A12L32 mm 1.26"
General-purposeStandard
0.5 µm 0.02 Mil3 µm 0.12 Mil 2.1 N 1.8 N 1.5 N GT2-A32
50 mm 1.97" Standard 3.5 µm 0.14 Mil 3.2 N 2.8 N 2.4 N GT2-A50
* Value at center of measuring range.
For a wider measuring range For a larger target
Commonly used type
Resolution: 0.5 µm 0.02 MilAccuracy: 3 µm 0.12 Mil (P-P)
Resolution: 0.5 µm 0.02 MilAccuracy: 3.5 µm 0.14 Mil (P-P)
Resolution: 0.1 µm 0.004 MilAccuracy: 1 µm 0.04 Mil (P-P)
Resolution: 0.5 µm 0.02 MilAccuracy: 2 µm 0.08 Mil (P-P)
32 mm 1.26" range
50 mm 1.97" range
12 mm 0.47" range
Air Push Type
General-purpose type sensor headGT2-A32
General-purpose type sensor headGT2-A50
High-accuracy type sensor headGT2-A12K
General-purpose type sensor headGT2-A12
The low stress type is not available for the 50 mm 1.97" range sensor head.
The low stress type is not available for the 32 mm 1.26" range sensor head.
High-accuracy / Low stress type sensor headGT2-A12KL
General-purpose / Low stress type sensor headGT2-A12L
Low stress type
Low stress type
For 20 µm 0.79 Mil or less tolerance differentiation
When particularly high-accuracy is not required
High-accuracy Type General-purpose Type
Speed controller
OP-82133
Adjustable spindle speedThe speed controller (optional) allows the spindle movement speed to be adjusted.
14
NEW
Type Appearance Cable length Model Weight
Straight
2 m 6.6' GT2-CH2M Approx. 80 g5 m 16.4' GT2-CH5M Approx. 190 g10 m 32.8' GT2-CH10M Approx. 360 g20 m 65.6' GT2-CH20M Approx. 680 g
L-shapedApplicable to 12 mm 0.47"
range type only
2 m 6.6' GT2-CHL2M Approx. 80 g5 m 16.4' GT2-CHL5M Approx. 190 g10 m 32.8' GT2-CHL10M Approx. 360 g20 m 65.6' GT2-CHL20M Approx. 680 g
The cable can be freely cut. If the cable is cut, a connector (OP-84338) is required to connect to the display unit (amplifi er).
15
step
step2
Select a sensor head cableSelect the sensor head cable according to installation conditions and the distance between the sensor head and the display unit (amplifi er). The L-shaped type can be used for the 12 mm 0.47" range sensor head (GT2-H12/A12) only.
Commonly used type
For space-saving installation
Straight Type
L-shaped Type
This connector is required if the cable is cut.
Connector used to connect to a display unit (2 pcs.) OP-84338
Cable connection
Cable connection
This connector does not rotate. It is fi xed in the direction as shown in the photo (left).
step3
Select mounting brackets as required.Select a mounting bracket depending on the sensor head mounting method.
Commonly used type
Vibration resistant, Reinforced holding force
Vibration resistant, Reinforced holding force
For side mounting
OP-76874
OP-84327
OP-84396
OP-76875
Horizontally mounts the sensor head.
After drilling a ø10 mm ø0.39" hole, insert the sensor head through the hole, and fasten it.
For GT2 12 mm 0.47" range models
For GT2 32 mm 1.26" and 50 mm 1.97" range models
Mounting Bracket A
Mounting Bracket D
Mounting Bracket C
Mounting Bracket B
The cable can be cut anywhere.
After drilling a ø14 mm ø0.55" hole, insert the sensor head through the hole and fasten it.* The mounting method is the same as mounting brackets A
and C.* When using the GT2-H32L with its contact probe directing
upward, use the mounting holes in the sensor housing.
Required
TypeModel
NPN output PNP output Line driver output
Loose wireStandard
Main unit GT2-71N GT2-71P–
Expansion unit GT2-72N GT2-72PPulse output – – GT2-71D
Connector*Standard
Main unitGT2-71CN GT2-71CP
–Analog GT2-71MCN GT2-71MCPStandard Expansion unit GT2-72CN GT2-72CP
* When the connector type amplifi er unit is used, an optional socket cable should be purchased separately (See the next page.).
TypeModel
NPN output PNP output
CompactMain unit GT2-75N GT2-75P
Expansion unit GT2-76N GT2-76PLarge display* GT2-100N GT2-100P
* When these amplifi er units are not mounted to a panel, an optional mounting bracket should be purchased separately (See the next page.).
16
How to select a GT2 Series
step
step4
Next, select a display unit (amplifi er).After selecting a display unit depending on the mounting method, select optional accessories as required.
Easy installation in any place
Installation on easy-to-see places
DIN-rail Mount Type
Panel Mount Type
GT2-71N/71P GT2-71CN/71CP
Use the connector on the side of the unit.
Connect using the cable supplied with the expansion unit.
To connect additional units, place the main unit in the top position and connect the expansion units below (vertically).
Main unitExpansion unit
Connector
To connect an additional unit, purchase the optional end unit (OP-26751).
* For horizontal installation, the optional expansion cable (OP-35361, 300 mm 11.81") is required. For details, refer to the description in the option list.
Connecting additional expansion units
Connecting additional main and expansion units [Compact type only]
Expansion cable
GT2-75N/75PW: 66 mm 2.60" H: 23.9 mm 0.94"
GT2-100N/100PW: 159.5 mm 6.28" H: 79.8 mm 3.14"
The analog output type amplifi er unit provides three discrete outputs.
A single unit of the large display type can connect two sensor heads. When the optional expansion boards are used, up to 11 sensor heads can be connected. For the details of the expansion board, see the next page.
For each main unit, up to 14 expansion units can be connected. When several units are connected, a power supply cable is not required for the expansion units. The GT2 Series can be connected with the GT Series. However, the maximum number of connectable units is 10 units (including main unit). Unit expansion is not possible for the GT2-71D.
For the compact type amplifi er unit, up to 14 expansion units can be connected to one main unit without providing power supply cables individually. The expansion connection can include the GT Series, however, the maximum number of connectable units is limited to 10 including the main unit.
Commonly used type Easy installation/replacement
Commonly used type Easy-to-see display for easier operation
Loose wire type Connector type
Compact type Large display type
Required
Type Description Model
For installation without a DIN-rail
Mounting Bracket for DIN-rail mount Type Display unit(optional accessory for main unit)
The amplifi er can be mounted without using a DIN-rail.
OP-76877
Required for connecting additional units
End unit(Optional)
To connect an additional expansion unit, use the end units to secure the display units on both ends. When connecting additional units, be sure to use the end units. (2 pcs.)
OP-26751
Required when the connector type is used
Socket cable 2 m 6.6'/10 m 32.8'(Optional)
Used to connect the connector type display unit.Since the amplifi er unit does not include the socket cable, it must be purchased separately.
GT2-CA2M(2 m 6.6')
GT2-CA10M(10 m 32.8')
Type Description Model
Standard equipment
Panel mounting bracket(Included in panel mount type amplifi er)
The panel mounting bracket is included in the panel mount type amplifi er. If the supplied bracket is lost or damaged, order a new bracket.
OP-84394
If the standard cable length is not enough
Expansion cable: 300 mm 11.81"(Optional)
Extension cable used for panel mount type amplifi er. Use this cable if the standard 50 mm 1.97" cable is not long enough. Up to 4 extension cables can be used at once. However, if an extension cable is used, the number of expansion units that can be connected to a single main unit is limited to 4 units.
OP-35361
Type Description Model
To connect three or more sensor heads
Expansion board For GT2-100N (Optional)For GT2-100P (Optional)
Installing this expansion board into the GT2-100 allows you to connect more than two sensor heads. Since one expansion board allows connection of one to three sensor heads, the maximum of 11 sensor heads can be connected in total.
GT2-E3N(NPN)
GT2-E3P(PNP)
To install the GT2-100 on a workbench, etc.
Mounting bracket(Optional)
When the amplifi er unit is not mounted to a panel, use this mounting bracket to secure it.
OP-84331
I/O connector
20-pin MIL connector (for the amplifi er unit, optional)30-pin MIL connector (for the expansion board, optional)
A set of connector and contacts (for AWG 24 to 22).The cable should be prepared by the user.
OP-22185(20-pin)
OP-84456(30-pin)
Contact for maintenance work (Optional) For AWG 24 to 22, Package of 200 OP-22186
Small diameter contact (Optional) For AWG 28 to 26, Package of 200 OP-30594
Special crimping tool (Optional) Use this tool to crimp the contact. OP-21734
No. of sensor heads
No. of expansion boards
1 or 2 None3 to 5 16 to 8 2
9 to 11 3
17
step
step5
Select the optional accessories for the display unit as required.Select the optional accessories according to the display unit selected in Step 4.
Optional accessories for the GT2-71/72 (DIN-rail mount)
Optional accessories for the GT2-75/76 (panel mount, compact)
Optional accessories for the GT2-100 (panel mount, large display)
Amplifi er mounting bracket
End unitEnd unit
Secure the amplifi er unit with M4 screws.
18
How to select a GT2 Series
step
step6
Select a contact as needed.The standard type and carbide type contacts are included in the GT2-H12 (L) / H32 (L) / H50 / A12 (L) / A32 / A50 and the GT2-H12K (L) /A12K (L) respectively, as standard equipment. Other types of contacts are optionally available. Select optional contacts as required.
For standard measurement
For moving targets
For measurement in narrow spaces
Made from a carbide alloy – For high-accuracy measurement
To prevent damage to target
For measurement at several points with small targets
For targets with curved surfaces
Electrically insulated from the target
StandardOP-77678
Standard equipment of general-purpose type sensor head GT2-H12 (L) / H32 (L) / H50 / A12 (L) / A32 / A50
Roller (Optional)
OP-77680
The roller smoothly detects moving targets.
Needle (Optional)
OP-77681
The needle contact is made of super-tough tungsten alloy.
Super-toughOP-77682
Standard equipment of high-accuracy type sensor head GT2-H12K (L) / A12K (L)
Fluorocarbon Resin (Optional)
OP-80228
Made from material that is unlikely to damage the target’s surface.
Offset (Optional)
OP-77683
Detecting points can be added in narrow range.
Flat Plate (Optional)
OP-77679
Ignore the contours of a target with a curved surface.
Ceramic (Optional)
OP-81970
Ceramic is used for the ball of the contact tip.
For 12.2 mm 0.48" spindle extension
Spacer (Optional)OP-77684
When lifting a spindle by hand
Lift lever (Optional)OP-84397
step7
Select a communication unit as needed.A communication unit is required to extract numerical data from the GT2 Series to an external device. With a single unit, data from up to 15 GT2 Series units can be extracted.
To extract BCD data
For RS-232C communication
Detection data can be read from a specifi ed sensor
amplifi er via an external device such as a PLC.
Sensor amplifi er detection data, settings, and
calculation results from several GT units can be
read and amplifi er settings can be written via an
external device such as a PLC or PC.
BCD Output Unit
RS-232C Communication Unit
BCD output unitDL-RB1A
RS-232C communication unitDL-RS1A
DATA
DATA
Reading
Writing
Reading
Reading
Programmable controller
Programmable controller
PC
Type Description Model
To install the unit without using a DIN-rail
Mounting bracketThe communication unit can be mounted without using a DIN-rail. OP-60412
To connect the unit to the panel mount type display unit
Expansion cable: 300 mm 11.81"(Optional)
Although the DL Series is designed for DIN-rail mounting only, the optional expansion cable (OP-35361, 300 mm 11.81") enables communication with the panel mount type amplifi er unit (compact/large display).
OP-35361
Type Description Model
I/O connector
34-pin vertical MIL connector (Optional)[40 contacts for AWG 24 to 22 included]
A set of connector and contacts (for AWG 24 to 22).The cable should be prepared by the user.
OP-23139
I/O connector
34-pin slanting MIL connector (Optional)[40 contacts for AWG 24 to 22 and a cable tie included]
A set of connector and contacts (for AWG 24 to 22).The cable should be prepared by the user.
OP-42224
Special crimping tool (Optional)
Use this tool to crimp the contact. OP-21734
Contact for maintenance work (Optional)
For AWG 24 to 22, Package of 200 OP-22186
Small diameter contact (Optional)
For AWG 28 to 26, Package of 200 OP-30594
Type Description Model
D-sub 9-pin connector-to-loose wires cable (5 m 16.4', optional)
This cable can be used to connect the DL-RS1A to a personal computer or other serial device.
OP-81283
19
step
step8
Select the optional accessories for the communication unit as necessary.Select the optional accessories according to the type of the communication unit selected in Step 7.
Optional accessories common to the DL-RB1A and DL-RS1A
Optional accessories for the DL-RB1A
Optional accessories for the DL-RS1A
Main unitDL
Expansion unit
Expansion unit
Expansion cable (300 mm 11.81")OP-35361
❙ Sensor heads for the GT2 Standard TypeModel GT2-H12K GT2-H12KL GT2-H12 GT2-H12L GT2-H32 GT2-H32L GT2-H50
Type Standard / Low stress (L) type (Sensor head for 12 mm 0.47")Standard / Low stress (L) type
(Sensor head for 32 mm 1.26"/50 mm 1.97" range)
Appearance
Detection system Quartz glass scale, CMOS image sensor projection system, Absolute type (without tracking error)Measuring range 12 mm 0.47" 32 mm 1.26" 50 mm 1.97"Resolution 0.1 µm 0.004 Mil 0.5 µm 0.02 MilAccuracy (20°C 68°F) 1 µm 0.04 Mil (p-p) 2 µm 0.08 Mil (p-p) 3 µm 0.12 Mil (p-p) 3.5 µm 0.14 Mil (p-p)
Measuring force *1
Downward mounting 1.0 N 0.4 N 1.0 N 0.4 N 2.1 N 1.2 N 3.2 NSide mounting 0.9 N 0.3 N 0.9 N 0.3 N 1.8 N 0.9 N 2.8 NUpward mounting 0.8 N 0.2 N 0.8 N 0.2 N 1.5 N 0.6 N 2.4 N
Mechanical response 10 Hz 4 Hz 10 Hz 4 Hz 6 Hz 5 Hz 7 HzProbe Carbide ball ø3 Steel ball ø3Operation indicator 2-color LED (red, green)
Environmental resistance
Enclosure rating IP67 – IP67 – IP67 – IP67Ambient temperature -10 to +55°C 14 to 131°FRelative humidity 35 to 85% RH (No condensation)Vibration 10 to 55 Hz, 1.5 mm 0.06" double amplitude, 2 hours in each of X, Y, and Z directions
Sensor head cable Optional (M8 connector)
MaterialsMain body Main body cast: Zinc die-casting, Indicator: Polyarylate, Dust boot: NBR *2
Contact TYPE304 Stainless steel, super-tough tungsten alloy
TYPE304, 440C Stainless steel
Weight (excluding cable) Approx. 95 g Approx. 270 g Approx. 320 gAccessories Refer to the instruction manual.
*1 Value at center of measuring range.*2 A dust boot is not provided with the GT2-H12KL, the GT2-H12L or the GT2-H32L.
❙ Sensor heads for the GT2 Air Push TypeModel NEW GT2-A12K NEW GT2-A12KL NEW GT2-A12 NEW GT2-A12L NEW GT2-A32 NEW GT2-A50
Type Standard / Low stress (L) type (Sensor head for 12 mm 0.47")Standard type (Sensor head
for 32 mm 1.26"/50 mm 1.97" range)
Appearance
Detection system Quartz glass scale, CMOS image sensor projection system, Absolute type (without tracking error)Measuring range 12 mm 0.47" 32 mm 1.26" 50 mm 1.97"Resolution 0.1 µm 0.004 Mil 0.5 µm 0.02 MilAccuracy (20°C 68°F) *1 1 µm 0.04 Mil (p-p) 2 µm 0.08 Mil (p-p) 3 µm 0.12 Mil (p-p) 3.5 µm 0.14 Mil (p-p)
Measuring force *2
Downward mounting 1.2 N 0.4 N 1.2 N 0.4 N 2.1 N 3.2 NSide mounting 1.1 N 0.3 N 1.1 N 0.3 N 1.8 N 2.8 NUpward mounting 1.0 N 0.2 N 1.0 N 0.2 N 1.5 N 2.4 N
Operation indicator 2-color LED (red, green)Applied pressure range 0.25 to 0.5 MPaPressure resistance 1.0 MPa
Environmental resistance
Enclosure rating IP67 *3 – IP67 *3 – IP67 *3 IP67 *3
Ambient temperature 0 to 55°C 32 to 131°FRelative humidity 35 to 85% RH (No condensation)Vibration *4 10 to 55 Hz, 1.5 mm 0.06" double amplitude, 2 hours in each of X, Y, and Z directions
Sensor head cable Optional (M8 connector)
Materials
Main body Main body case: Zinc die-casting; Cylinder part: Aluminium alloy; Air joint resin part: Polyacetal; Air joint metal part: Brass nickel plating; Indicator: Polyarylate
Dust boot NBR – NBR – NBR NBR
Contact *5 TYPE304 Stainless steel, super-tough tungsten alloy
TYPE304, 440C Stainless steel
Weight (excluding cable) Approx. 145 g Approx. 340 g Approx. 405 gAccessories Refer to the instruction manual.
*1 Value when ambient temperature is 20°C 68°F*2 Value at center of measuring range.
Please note that the measurement force changes depending on the installation state of the dust boots.*3 Make sure the air tube is connected to the air exhaust joint and that no foreign materials enter inside from the joint.*4 In the case where a mounting bracket D is used with GT2-A32 and GT2-A50, the double amplitude becomes 0.75 mm 0.03".*5 The contact is included with the sensor.
Specifi cations
20
❙ Panel mount type amplifi er unit
ModelNPN output GT2-75N GT2-76N GT2-100N GT2-E3NPNP output GT2-75P GT2-76P GT2-100P GT2-E3P
Mounting method Panel mount Panel mount/Screw mounting using optional mounting bracket
Installed into GT2-100N/100P (up to 3 boards)
Main unit / Expansion unit *1 Main unit Expansion unit 2 channels provided as standard. Addition of expansion boards allows expansion to 11 channels max. Expansion unit (1 to 3 channels)
Appearance
Power supply voltage *1 10 to 30 VDC, including 10% ripple (P-P) 20 to 30 VDC, including 10% ripple (P-P) Supplied from GT2-100N/100P
Power consumption *2
Normal 2200 mW max. (30 V, 73.3 mA max.) 4500 mW max. (30 V, 150 mA max.) 4200 mW max. (30 V, 140 mA max.)
Power saving (Eco) 1700 mW max. (30 V, 56.7 mA max.) 3600 mW max. (30 V, 120 mA max.) 4000 mW max. (30 V, 133.3 mA max.)
Display powerMeasured value display 6 + 1/2-digit 7-segment LED (red)
–Other displays 2-color, 13-level bar LED display (red, green), indicators (red, green)
Display range -199.999.9 to 199.999.9
Display resolution 0.1 µm 0.004 Mil
Sampling rate 1000 times/sec.
Control input
Timing input Input time: 2 ms min.
Preset input Input time: 20 ms min.Reset input
Bank input
Control output
HH / High / Go / Low / LL
NPN/PNP open collector, Applicable current: 50 mA,Maximum applicable voltage (NPN: 40 V, PNP: 30 V)
Residual voltage at ON: 1 V max. * N.O./N.C switchable(Applicable current decreases to 20 mA or lower when 2 or more sensor heads are connected to the GT2-100 Series.)
Response time hsp (3 ms), 5 ms, 10 ms, 100 ms, 500 ms, 1 s
Environmental resistance
Ambient temperature -10 to +50°C 14 to 122°F
Relative humidity 35 to 85% RH (No condensation)
Vibration 10 to 55 Hz, 1.5 mm 0.06" double amplitude, 2 hours in each of X, Y, and Z directions (GT2-100N/P: 0.15 mm 0.01" double amplitude)
Materials Main body case: Polycarbonate, Key top: Polyacetal, Front sheet: PET, Cable: PVC (GT2-75N/75P/76N/76P only) –
Power supply / I/O cable 12-core connector connection (Connecting cable included) Power supply: Terminal block, I/O: 20-pin connector (MIL standard) I/O: 30-pin connector (MIL standard)
WeightGT2-75N/75P/76N/76P: Approx. 140 g (including panel mounting bracket, protective front cover and power cable)
GT2-100N/100P: Approx. 380 g, GT2-E3N/E3P: Approx. 80 g
AccessoriesGT2-75N/75P: Panel mounting bracket, protective front cover, power cable, instruction manual, cover seal
GT2-76N/76P: Panel mounting bracket, protective front cover, power cable, expansion cable
GT2-100N/100P: Instruction manual, panel mounting bracket, GT2-E3N/E3P: None
*1 Precautions when the GT2-70 Series is used with an expansion unit (excluding GT2-71D)Up to 15 amplifi er units can be connected; main unit: 1 unit, expansion unit: 14 units. To use the DIN-rail mount type, be sure to mount the amplifi er unit to a DIN-rail (using the metal bracket). When mounting additional units, be sure to use the end units (OP-26751). When mounting additional units, depending on the number of units to be added, confi rm the following specifi cation limitations.
❙ DIN-rail mount type amplifi er unit (For the pulse output type, see page 19.)
ModelNPN output GT2-71N GT2-72N GT2-71CN GT2-72CN GT2-71MCNPNP output GT2-71P GT2-72P GT2-71CP GT2-72CP GT2-71MCP
Mounting method DIN-rail mount
Type Standard loose wire type Standard connector type Analog output, connector type
Main unit / Expansion unit *1 Main unit Expansion unit Main unit Expansion unit Main unit
Appearance
Power supply voltage *1 10 to 30 VDC, including 10% ripple (P-P) 20 to 30 VDC, including 10% ripple (P-P)
Power consumption *2
Normal 2200 mW max. (30 V, 73.3 mA max.) 2700 mW max. (30 V, 90 mA max.)
Power saving (Eco) 1700 mW max. (30 V, 56.7 mA max.) 2200 mW max. (30 V, 73.3 mA max.)
Display powerMeasured value display 6 + 1/2-digit 7-segment LED (red)
Other displays 2-color, 13-level bar LED display (red, green), indicators (red, green)
Display range -199.999.9 to 199.999.9
Display resolution 0.1 µm 0.004 Mil
Sampling rate 1000 times/sec.
Control input
Timing input Input time: 2 ms min.
Preset input Input time: 20 ms min.Reset input
Bank input
Control output
HH / High / Go / Low / LL
NPN/PNP open collector, Applicable current: 50 mA,Maximum applicable voltage (NPN: 40 V, PNP: 30 V)
Residual voltage at ON: 1 V max. * N.O./N.C switchable(GT2-71MCN/71MCP: HH and LL are not available.)
Analog output –4 to 20 mA, maximum load resistance: 350 Ω
Analog output range can be changed as desired.
Response time hsp (3 ms), 5 ms, 10 ms, 100 ms, 500 ms, 1 s
Environmental resistance
Ambient temperature -10 to +50°C 14 to 122°F (GT2-71MCN/71MCP: -10 to +45°C 14 to 113°F when expansion unit(s) is connected)
Relative humidity 35 to 85% RH (No condensation)
Vibration 10 to 55 Hz, 1.5 mm 0.06" double amplitude, 2 hours in each of X, Y, and Z directions
Materials Main body case: Polycarbonate, Key top: Polyacetal, Front sheet: PET, Cable: PVC
Weight GT2-71N/71P/72N/72P: Approx. 140 g (including power cable), GT2-71CN/71CP/72CN/72CP/71MCN/71MCP: Approx. 70 g
Accessories GT2-71N/71P/71CN/71CP/71MCN/71MCP: Instruction manual, Cover seal, GT2-72N/72P/72CN/72CP: None
<Up to 8 units (including main unit)>• The power supply voltage is 20 to 30 VDC. • The maximum applicable current for each output is 20 mA.
<Up to 9 to 15 units (including main unit)> • The power supply voltage is 20 to 30 VDC. • The maximum applicable current for each output is 10 mA (including DL-RB1A output current). • The residual voltage at ON Is 1.5 V or less.
*2 For GT2-100 Series, when the maximum number of sensor heads are connected and all units are set to power saving mode
21
❙ Communication unit (Common specifi cations)Model DL-RB1A DL-RS1A
Appearance
Power supply voltage 20 to 30 VDC, including ripple,
Ripple (P-P): 10% max. (Supplied via connected sensor amplifi er)
Power consumption 27 mA max. 25 mA max.
Number of connectable sensor amplifi ers
Up to 15 units (including main unit)
Indicator
Alarm indicator lamp (red),
Power indicator lamp (green)
Communication indicator lamp (green x 2),
Alarm indicator lamp (red),
Power indicator lamp (green)
Environmental resistance
Ambient temperature -10 to +55°C 14 to 131°F
Relative humidity 35 to 85% RH (No condensation)
Vibration10 to 55 Hz,
1.5 mm 0.06" double amplitude, 2 hours in each of X, Y, and Z directions
Material Main body case: Polycarbonate
Weight Approx. 46 g Approx. 53 g
AccessoriesInstruction manual, End units (x 2),
Switch protection seal, Expansion connector cover
❙ Communication unit (DL-RS1A Communication Specifi cations)Model DL-RS1A
Appearance
Communication method Full duplex
Synchronization method Start-stop
Transmission code ASCII
Baud rate2400/4800/9600/19200/38400 bps selectable
(Factory-setting: 9600 bps)
Date bit length 8-bit/7-bit selectable (Factory-setting: 8 bits)
Parity checkNone/Even/Odd selectable
(Factory- setting: None)
Stop bit length 1 bit
Data delimiterData reception: automatically recognizes CR
or CR+LFData transmission: Fixed to CR+LF
❙ DIN-rail mount type pulse output amplifi er unitModel GT2-71D
Appearance
Mounting method DIN-rail mount
Power supply voltage 10 to 30 VDC, including 10% ripple (P-P)
Current consumption 1600 mW (30 V, 53.3 mA max.)
IndicatorPower supply (green)/Alarm (red) indicator,
pulse output indicator (green), input indicator (green)
Pulse resolution Selectable from 0.1 µm 0.004 Mil, 0.5 µm 0.02 Mil, 1 µm 0.04 Mil, and 10 µm 0.39 Mil (Factory setting: 0.5 µm 0.02 Mil)
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 14 to 122°F
Relative humidity 35 to 85% RH (No condensation)
Vibration10 to 55 Hz, 1.5 mm 0.06" double amplitude,
2 hours in each of X, Y, and Z directions
Material Main body case: Polycarbonate, Cable: PVC
Weight Approx. 110 g (including power supply cable)
Accessories Instruction manual, SW protection sticker
❙ Pin assignment for the DL-RB1A (BCD)Pin No. Signal name Description
1 IDSEL 1 ID No. selection input 12 IDSEL 2 ID No. selection input 23 IDSEL 3 ID No. selection input 34 IDSEL 4 ID No. selection input 45 DRQ Data request input6 BCD DIGIT 1 (1) BCD 1st digit 1×100
7 BCD DIGIT 1 (2) BCD 1st digit 2×100
8 BCD DIGIT 1 (4) BCD 1st digit 4×100
9 BCD DIGIT 1 (8) BCD 1st digit 8×100
10 BCD DIGIT 2 (1) BCD 2nd digit 1×101
11 BCD DIGIT 2 (2) BCD 2nd digit 2×101
12 BCD DIGIT 2 (4) BCD 2nd digit 4×101
13 BCD DIGIT 2 (8) BCD 2nd digit 8×101
14 BCD DIGIT 3 (1) BCD 3rd digit 1×102
15 BCD DIGIT 3 (2) BCD 3rd digit 2×102
16 BCD DIGIT 3 (4) BCD 3rd digit 4×102
17 BCD DIGIT 3 (8) BCD 3rd digit 8×102
Pin No. Signal name Description18 BCD DIGIT 4 (1) BCD 4th digit 1×103
19 BCD DIGIT 4 (2) BCD 4th digit 2×103
20 BCD DIGIT 4 (4) BCD 4th digit 4×103
21 BCD DIGIT 4 (8) BCD 4th digit 8×103
22 BCD DIGIT 5 (1) BCD 5th digit 1×104
23 BCD DIGIT 5 (2) BCD 5th digit 2×104
24 BCD DIGIT 5 (4) BCD 5th digit 4×104
25 BCD DIGIT 5 (8) BCD 5th digit 8×104
26 BCD DIGIT 6 (1) BCD 6th digit 1×105
27 BCD DIGIT 6 (2) BCD 6th digit 2×105
28 BCD DIGIT 6 (4) BCD 6th digit 4×105
29 BCD DIGIT 6 (8) BCD 6th digit 8×105
30 BCD SIGN BCD data polarity sign31 BCD STB Strobe output32 ALARM Alarm output33 COM Common34 COM Common
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
22
Specifi cations
Main
circ
uit
(Short-circuit current: 1 mA max.)
(Short-circuit current: 2 mA max.)
Blue *1
Main
circ
uit
10 to 30 VDC
Brown *1
Main
circ
uit
Input circuit
Brown *1 5VDC10 to 30 VDC *3
5 to 40 VDC
5 to 40 VDC
5 to 40 VDC
5 to 40 VDC
5 to 40 VDC
Load
Load
Load
Load
Load
Orange (HH output) *2
Black (HI output)
Gray (GO output)
White (LO output)
Green (LL output) *2
Blue *1
0 V
External input Pink, purple, pink/purple, yellow, red *4
Over
curre
nt p
rotec
tion
circu
it
Main
circ
uit
Input circuit
Brown *1
10 to 30 VDC *3
Orange (HH output) *2
Black (HI output)
Gray (GO output)
White (LO output)
Green (LL output) *2
Blue *1
0 V
External input Pink, purple, pink/purple, yellow, red *4
Over
curre
nt p
rotec
tion
circu
it Pink: Preset input Purple: Bank A input Pink/purple: Timing input Yellow: Bank B input Red: Reset input
Pink: Preset input Purple: Bank A input Pink/purple: Timing input Yellow: Bank B input Red: Reset input
AM26LS32 line receiver or equivalent device
(Short-circuit current: 1 mA max.)
Main
circ
uit
Analog output (4 to 20 mA)
0 V (for analog)
Orange
Green *
10 to 30 VDC
Black: Phase A, White: Phase B, Orange: Phase ZPurple: Reversed phase AGray: Reversed phase BGreen: Reversed phase Z
0 VInputInput circuit
Main
circ
uit
Brown
Black, white, orange
Purple, gray, green
BluePink *
5 VDC
33 Ω
33 Ω
Pink
Blue
Main
circ
uit
390 Ω
Sens
or m
ain ci
rcui
tSe
nsor
main
circ
uit
0 V
0 V
+ *
+ *
- *
- *
20 to 30 VDC
Load
Load
Load
Load
Load
Load
Overc
urrent
prote
ction c
ircuit
Overc
urrent
prote
ction c
ircuit
5 to 40 VDC
1 to 5, 11 to 15, 21 to 25
1 to 5, 11 to 15, 21 to 25
5 VDC
- *
+ *
6 to 10, 16 to 20, 26 to 30
6 to 10, 16 to 20, 26 to 30
Main
circui
t M
ain ci
rcui
t
(Short-circuit current: 1 mA max.)
(Short-circuit current: 2 mA max.)
Load
20 to 30 VDC 20 to 30 VDC
5 VDC
23
Input/Output Circuits
For details of the I/O connector pin assignment and the expansion board, refer to the instruction manual. The information is also available at the KEYENCE home page. www.keyence.com
Analog output circuit
Output circuit of the large display amplifi er unitGT2-100N/GT2-E3N(Pin Nos. 1 to 5, 11 to 15, 21 to 25)
Output circuit of the large display amplifi er unitGT2-100P/GT2-E3P(Pin Nos. 1 to 5, 11 to 15, 21 to 25)
Input circuit of the large display amplifi er unitGT2-100N/GT2-E3N(Pin Nos. 6 to 10, 16 to 20, 26 to 30)
Input circuit of the large display amplifi er unitGT2-100P/GT2-E3P(Pin Nos. 6 to 10, 16 to 20, 26 to 30)
Pulse output amplifi er unit (GT2-71D)
GT2-71MCN/71MCP I/O circuit External input circuit Recommended input device
* The +/- terminals are provided in the GT2-100N only. They are not provided in the GT2-E3N.
* The +/- terminals are provided in the GT2-100P only. They are not provided in the GT2-E3P.
* The - terminal is provided in the GT2-100N only. It is not provided in the GT2-E3N.
* The + terminal is provided in the GT2-100P only. It is not provided in the GT2-E3P.
* The green and blue cables are common internally. * For details of the external input, refer to the diagram of the external input circuit.
*1 Brown and blue are applicable only to main units (GT2-71N/71P/71CN/71CP/71MCN/71MCP/75N/75P). Not to expansion units (GT2-72N/72P/72CN/72CP/76N/76P). The connector type expansion unit (GT2-72CN/72CP) is not connected to the internal circuit.
*2 The orange and green cables are used as analog output cables for the analog type amplifi er unit (GT2-71MCN/71MCP).For details, refer to the analog output circuit diagram.
*3 20 to 30 VDC when expansion unit is connected or for the analog type amplifi er unit (GT2-71MCN/71MCP).*4 For details on external input, refer to the external input circuit diagram.
I/O circuit (GT2-71N/72N/71CN/72CN/71MCN/75N/76N) External input circuit
External input circuit I/O circuit (GT2-71P/72P/71CP/72CP/71MCP/75P/76P)
Sensor head (Standard)GT2-H12K/GT2-H12
Cable connection(Straight)
Cable connection(L-shaped)
Sensor head (Low stress) GT2-H12KL/GT2-H12L
Cable connection(Straight)
Cable connection(L-shaped)
ø0.37"
0.42"
0.05"
3.75"95.3
ø9.510.7
1.15
ø0.37"
0.42"
3.75"
0.05"
ø9.510.7
1.15
95.3
0.05"
0.80"
0.12"
0.35"
3.63"
ø0.37"1.15
9
20.23.05ø9.5
92.3
0.80"
0.12"
20.23.05
3.63"92.3
90.05"
0.35"
ø0.37"1.15 ø9.5
ø8 ø0.31" h5 ( )+0-0.006
( )+0-0.0002"
28
15.50.61"
0.23"ø8ø0.31"
ø11.6ø0.46"
ø4 ø0.16"
0.25"
(12.5)(0.49")
(0.40")(6.4)(0.25")
161.10" 0.63"
(10.1)5.9
(58)(2.28")
8.7 0.34"15.10.59"
3.80.15" 6.4 (9.6)(22)
(0.87") (0.38")
60.24"
66.7 73.12.63" 2.88"
M8 cable connector
41.5to
29.01.63"
to1.14"
45.3to
32.81.78"
to1.29"
( )+0-0.0002"
ø8 ø0.31" h5 ( )+0-0.006
28
15.50.61"
0.23"ø8ø0.31"
ø11.6ø0.46"
ø4 ø0.16"
0.25"
(12.5)(0.49")
(0.40")(6.4)(0.25")
161.10" 0.63"
(10.1)5.9
(58)(2.28")
8.7 0.34"15.10.59"
3.80.15" 6.4 (9.6)(22)
(0.87") (0.38")
60.24"
66.7 73.12.63" 2.88"
M8 cable connector
41.5to
29.01.63"
to1.14"
45.3to
32.81.78"
to1.29"
Sensor head (Standard)GT2-H32
Cable connection(Straight)
Sensor head (Low stress) GT2-H32L
Cable connection(Straight)
Unit: mm inch
3.4
119.5
ø9.5 20.35ø0.37" 0.80"
4.70"
0.13"
3.4
ø9.5 20.35
119.5
ø0.37" 0.80"
4.70"
0.13"
37.6
19.717.8
23
5.9 0.23"0.34" 8.7
ø15
30
12.2
17 0.67"
3.8
(17.8)
12.2 (7.8) (0.31")
ø5
20 0.79"
0.3 0.01"
(11.55)8.15
(25.4) (1.00")
27.9 1.10"
(53.3)
116.4
(12.5) (0.49")
(6.4) (0.25")
9.7(88.5)
2.4
90.9
97.3
(19.8) (0.78")25.1
M8 cable connector
43.8to
77.8
47.6to
81.61.72"
to3.06"
1.87"to
3.21"
2-ø4.3
ø8
(14.3)
ø12 ø0.47" h6 ( )+0-0.011
1.48"
0.70"
4.58"
ø0.17"
ø0.59"
1.18"
0.09"
0.48"
ø0.20"
3.58"0.38"
(3.48")
(2.10")
(0.45")
3.83"
0.15"
0.91"
0.78"
0.32"
0.99"
ø0.31"
( )+0-0.0004"
0.48"
(0.70")
(0.56")
37.6
19.717.8
23
ø15
30
12.2
3.8
(17.8)
12.2
ø5
(11.55)8.15
116.4
2.4
ø8
25.1
M8 cable connector
2-ø4.3
5.9 0.23"0.34" 8.7
4.58"
0.91"
(7.8) (0.31")
20 0.79"
0.3 0.01"
0.48"
ø0.20"
(0.45")
0.78"
0.32"
(12.5) (0.49")
(6.4) (0.25")
(19.8) (0.78")
1.48"
0.70"0.99"
ø0.31"
ø12 ø0.47" h6 ( )+0-0.011
ø0.17"
ø0.59"
1.18"
( )+0-0.0004"
0.48"
17 0.67"
(25.4) (1.00")
43.8to
77.8
47.6to
81.61.72"
to3.06"
1.87"to
3.21"
0.09"
0.15" (0.70")
27.9 1.10"
(53.3)
9.7(88.5)
90.9
97.3
(14.3)
3.58"0.38"
(3.48")
(2.10") 3.83"
(0.56")
24
Dimensions
Unit: mm inch
Sensor head (Standard)GT2-H50
Cable connection(Straight)
3.4
ø0.37" ø9.5
137.5
20.35 0.80"
0.13"
5.41"
37.6
17.8
152.4
23
5.9
8.7 (14.3)
(6.4)
(53.3)
9.7
17 0.67"
3.8
(17.8)30
12.2 (25.4)
ø152.4
(106.5)
108.9
115.3
(0.3) (0.01")
(11.55)
19.7
8.15
20 0.79"
ø5
12.2 (7.8)
45.9
ø8 ø0.31"
(12.5) (0.49")
(19.8) (0.78")
25.1
M8 cable connector
2-ø4.3
48.6to
100.6
52.4to
104.41.91"
to3.96"
2.06"to
4.11"
1.48" 0.78"
0.32"0.99"
0.70"
0.91"
0.23"0.34"
1.18"
0.09"
1.80"
4.54"
0.48"
ø0.20"
4.29"
0.38"
0.15"
0.48"
ø0.59"ø0.17"
6.00"
(0.25")
(0.45")
(0.30")ø12 ø0.47" h6 ( )+0
-0.011
( )+0-0.0004"
(1.00")
(0.70")
(0.56")
(4.19")
(2.10")
Sensor head (Standard) GT2-A12/GT2-A12K
Sensor head (Standard) GT2-A32
Sensor head (Standard) GT2-A50
There are no dust boots on the low stress typeGT2-A12L/A12KL
One-touch air supply joint (for 4 mm 0.16" outside diameter air tube.)
Air exhaust joint (for 2.5 mm 0.10" inside diameter air tube.)
34.51.36"
(9.6) (0.38")0.25" 6.4ø0.16" ø4
97.353.83"
84.853.34"
0.22" 12.5
8.750.34"
39.81.57"
(0.22")(5.5)
32.51.28"1.00" 25.5
160.63"
(0.40") (10.1)0.23" 5.9
0.99" 25.150.88" 22.4
ø14 ø0.55"
13.1 0.52"
15 0.59"
17.70.70"
18 0.71"
0.05" 1.15(12.5) (0.49")0.61" 15.5
0.23" 5.95 M8 connector
281.10"
66.7 2.63"
3.8 0.15"
15.10.59"
0.34" 8.7
(58) (2.28")
29 to
41.5
32.8 to
45.3
1.29" to
1.78"
1.89" to
3.21"1.74"
to3.06"
1.14" to
1.63"
0.12" 3.05
0.04" 1.05
0.06" 1.55
ø8 ø0.31" h5
ø0.46" ø11.6
0.24" 6(22) (0.87")
95.33.75"
ø9.5 ø0.37"0.42" 10.75
M8 connector
37.61.48" (12.5) (0.49")
(19.8) (0.78")0.49" 25.10.70" 17.8
(53.3) (2.10")
88.5 3.48"
90.9 3.58"9.7 0.38"
27.9 1.10"
0.09"2.4
0.91" 23(0.56") (14.3)
0.34" 8.70.23" 5.9
2 - ø4.3ø15
ø0.59"
1.18" 3017
0.67"
44.3 to
77.8 48.1 to
81.6
3.8 0.15"(0.70") (17.8)
(25.4) (1.00")0.48" 12.2ø12 ø0.47" h6
0.80" 20.35 ø9.5 ø0.37"
119.54.70"
One-touch air supply joint (for 4 mm 0.16" outside diameter air tube.)
Air exhaust joint (for 2.5 mm 0.10" inside diameter air tube.)
1.46"37
301.18"
19.70.78"0.32" 8.15 (11.55)
(0.45")
1.17" 29.75
1.06" 27
0.49" 12.5
(5.5)(0.22")
75.652.98"
142.75.62"
155.26.11"
0.01" 0.3
5.60.22"
ø0.20" ø50.48" 12.2 (7.8) (0.31")
0.13" 3.4
391.54"
M8 connector
37.61.48"0.99" 25.1
0.70" 17.8(12.5) (0.49")(19.8) (0.78")
(53.3) (2.10")
106.54.19"
0.09"2.4
9.7 0.38"
45.891.81"
0.34" 8.7
0.23" 5.9
2 - ø4.3 ø15ø0.59"
1.18" 30
0.48" 12.2(0.70") (17.8)
(25.4) (1.00")ø12 ø0.47" h6
170.67"
49.1 to
100.652.9to
104.4
0.91" 23
(0.56") (14.3)
3.8 0.15"
0.80" 20.35 ø9.5 ø0.37"
108.94.29"
137.55.41"
Air exhaust joint (for 2.5 mm 0.10" inside diameter air tube.)
One-touch air supply joint (for 4 mm 0.16" outside diameter air tube.)
1.46"37
301.18"
19.70.78"0.32" 8.15 (11.55) (0.45")
1.17" 29.751.06" 27
0.49" 12.5
(5.5)(0.22")
93.653.69"
178.77.04"
191.27.53"
5.60.22"
0.01" 0.3
ø0.20" ø50.48" 12.2 (7.8) (0.31")
391.54"
ø14 ø0.55"
15 0.59"
18 0.71"28.1 1.11"32.7 1.29"15 0.59"
18 0.71"
0.13" 3.4
ø0.17"
ø0.17"
2.08" to
4.11"
1.93" to
3.96"
ø14 ø0.55"
15 0.59"
18 0.71"28.1 1.11"32.7 1.29"15 0.59"18 0.71"
25
Unit: mm inch
Mounting hole
For GT2-H12K/H12/A12K/A12 (Optional)OP-84332
For GT2-H32/A32 (Optional)OP-84459
For GT2-H50/A50 (Optional)OP-84460
25.3
58.2
ø7.6 ø0.30" ø11.6 ø0.46" ø11.6 ø0.46"
81
C0.5 to C1.0
5.5 to 11.3
C1.5 16.3
1616
17 17
17 0.67"
ø12ø14
R8.5
5 0.20"
6 0.24"7.8 0.31"
Sensor head mounting bracket D (Optional)OP-84327
C1.5
C0.06"
C0.06"C0.02" to C0.04"16.3
0.64"
0.64"
0.24"
0.31"7.8
6
0.24"
0.31"
0.26"
0.14"0.59"
7.8
6
1212
ø8 ø0.31"G6 ( )+0.014
+0.005
ø8 ø0.31"G6 ( )+0.014
+0.005
ø8 ø0.31" G6 ( )+0.014+0.005
G6 ( )+0.017+0.006
ø10 ø0.39"
ø10 ø0.39"g6 ( )-0.005
-0.014ø10 ø0.39"G8 ( )+0.027
+0.005
R6.5R0.26"
R0.26"
R0.15"
R0.31"
3.5
Mounting hole
C0.5 to C1.0
C0.02" to C0.04"C0.5 to C1.0
( )+0.0006"+0.0002"
( )+0.0006"+0.0002"
( )+0.0006"+0.0002"
( )-0.0002"-0.0006" ( )+0.001"
+0.0002"
( )+0.004"+0.0002"
5.5 to 11.30.22" to 0.44"
0.22" to 0.44"
Mounting hole
ø10 ø0.39"
5.5 to 11.3
4-C2 C0.08"
16.3 11
12.1(0.2)(0.01")
6.3
32
15 3.5
6.510.5
R3.8
ø4.2
R8
Sensor head mounting bracket A (Optional)OP-76874
Sensor head mounting bracket B (Optional)OP-76875
Material: TYPE304 Stainless steel, Zinc
Material: TYPE304 Stainless steel
Material: TYPE304 Stainless steel
Material: TYPE303 Stainless steel
Sensor head mounting bracket C (Optional)OP-84396
C1.5 16.3
R6.5
5
0.47"
0.14"
0.20"
0.47"
1212 0.47"0.47"
0.41"
1.26"0.48"
0.25"0.43"0.64"
ø0.17"
g6 ( )-0.005-0.014 ( )-0.0002"
-0.0006" ( )+0.1+0.005
Dust boot
* The dust boot is factory-attached to the sensor head
(except for the low stress type).
Material: TYPE304Stainless steel, NBR
Unit: mm inch
g6 ( )-0.006-0.017
( )-0.0002"-0.0007"
0.63"
1.00"
2.29"
3.19"
C0.06"
0.63"
0.64"
0.67"0.22" to 0.44"
0.67"
R0.33"
ø0.47"
ø0.55"( )+0.004"+0.0002"
ø14 ø0.55"( )+0.1"+0.006"
C0.02" to C0.04"
A
A B
43
2 1 4
21
3
ø4.8, 4 x 0.22 mm2
C
C-C
LC
B
27.21.07"
ø9.5
7.20.28"
ø11 ø0.43"
21.4 0.84"
10.4 0.41"20.6 0.81"
9.4 0.37"
Sensor head cable (Straight)GT2-CH2M/CH5M/CH10M/CH20M (Optional)
A1234
B1342
Sheath colorBrownWhiteBlueBlack
GT2-CH2MGT2-CH5MGT2-CH10MGT2-CH20M
L2000 78.74"5000 196.85"10000 393.70"20000 787.40"
Model
A
A B
43
2 1
ø4.8,4 x 0.22 mm2
B
C
C-C
C
230.91"
0.95" 24.2
ø9ø0.35"
ø7ø0.28" ø9
ø0.35"
ø0.43" ø11
21.4 0.84"
10.4 0.41"
20.6 0.81" 9.4 0.37"L
4
21
3
Sensor head cable (L-shaped)GT2-CHL2M/CHL5M/CHL10M/CHL20M (Optional)
A1234
B1342
Sheath colorBrownWhiteBlueBlack
GT2-CHL2MGT2-CHL5MGT2-CHL10MGT2-CHL20M
L2000 78.74"5000 196.85"10000 393.70"20000 787.40"
Model
ø0.19"
ø0.37" ø0.19"
26
Dimensions
Unit: mm inch
StandardOP-77678
Super-toughOP-77682
Spacer (Optional)OP-77684
Offset (Optional)OP-77683
Ceramic (Optional)OP-81970
Needle (Optional)OP-77681
Amplifier unit DIN-rail mount type
M2.5 × 0.45 0.02"
M2.5 × 0.45 0.02"Effective screw depth: 6.5 mm 0.26"
5.5
12.2 2
3.6
ø4
Contact
5
6.2
21
C0.2 C0.008"
M2.5 × 0.45
ø4
ø1.2
10
8
5
20
ø7.5ø6
3.5
M2.5 × 0.45
ø1.6
SR0.8 0.03"
5
3.8
M2.5 × 0.45
ø5
SR1.5 0.06"
M2.5 × 0.45 5 0.20"
3.8 0.15" SR1.5 0.06"
ø5 ø0.20"
M2.5 × 0.45
Standard equipment of the general-purpose sensor head GT2-H12 (L)/H32 (L)/H50/A12 (L)/A32/A50
Standard equipment of the high-accuracy type sensor head GT2-H12K (L)/A12K (L)
Material: TYPE304 Stainless steel TYPE440C Stainless steel
Lift lever (Optional)OP-84397
Material: TYPE304 Stainless steel
Flat plate (Optional)OP-77679 5
4.5ø7
ø6
Material: TYPE304 Stainless steel Super-tough tungsten alloy
Roller (Optional)OP-77680 ø9
ø7.5
3.5
9.5
7.5
4.5
M2.5 × 0.45
4.4 49
ø9
Material: TYPE304 Stainless steel TYPE440C Stainless steel
Material: TYPE304 Stainless steel Super-tough tungsten alloy
Material: TYPE304 Stainless steel Super-tough tungsten alloy
Material: TYPE304 Stainless steel Super-tough tungsten alloy
5
3.8
M2.5 × 0.45
ø5
SR1.5 0.06"
Material: TYPE304 Stainless steel, Ceramic
Fluorocarbon resin (Optional)OP-80228
ø5
M2.5 × 0.45
9
5
SR1.5 0.06"
Material: Fluorocarbon resin (PTFE)
Material: TYPE304 Stainless steel
GT2-71N/71P/71MCN/71MCP/71CN/71CP
* Cable specificationsGT2-71N/71P: ø4.7 ø0.19", 12-core x Brown/Blue: 0.20 mm2, Black/White/Gray/Orange/Green/Pink/Purple/Yellow/Red/Pink purple: 0.15 mm2, Cable length: 2 m 6.6'GT2-72N/72P: ø4.7 ø0.19", 10-core x Black/White/Gray/Orange/Green/Pink/Purple/Yellow/Red/Pink purple: 0.15 mm2, Cable length: 2 m 6.6'
24
8.9
41.8 36.9
3
12.4
15 0.59" min. 20 21.1
17.4
(Maximum when cover is opened) 82.9 3.26"
35.4
75.8 15 0.59" min.
14.6
135° max.
GT2-72N/72P/72CN/72CP
75.8 15 0.59" min.
3.6
21.4
8.3
4.7
2.3
19.2
15.3
0.85.2
* *
(Maximum when cover is opened) 132.6 5.22"
0.20" 0.20"
0.15"0.18"
ø0.20"
ø0.24"
ø0.30"
ø0.06"ø0.05"
ø0.20"
ø0.16"
ø0.20"
ø0.16"
ø0.24"
ø0.35"0.18"
0.14"
0.39"
0.24"
0.15"
0.35"
0.83"
0.20"0.20"0.20"
0.84"
0.76"0.33"
0.60"
0.03"
0.57"14.60.57"
0.35"
0.12"3
0.12"
1.45"1.65"
0.49"
41.8 36.9
12.41.45"1.65"
0.49"0.69"17.40.69"
0.79" 0.83"1.39" 15 0.59" min. 20 21.1 35.4
0.79" 0.83"1.39"
2.98" 2.98"
0.94"24
8.90.35"
0.94"
0.14"
0.48"
0.08"0.22"
0.19"
0.09"
0.14"
0.20"
0.31"
0.79"
0.20"
0.14"
0.37"
0.30"
0.17" 0.16" 0.35"
ø0.35"
ø0.30"
ø0.28"
0.02" 0.02" 0.02"
0.02"
0.02"0.02"0.02"0.02"
GT2-71MCN/71MCP/71CN/71CP/72CN/72CPConnector (connector type/analog output type amplifier unit)
GT2-CA2M/CA10MConnection cable
46 1.81" 44 1.73"
*
Cable length: 0.3 m, ø4.7
ø15 ø0.59" ø0.59" ø15
* Cable specificationsOuter diameter: ø4.7 mm ø0.19", Cable length: 2 m 6.6' (GT2-CA2M), 10 m 32.8' (GT2-CA10M), 12-core x Brown/Blue: 0.20 mm2, Black/White/Gray/Orange/Green/Pink/Purple/Yellow/Red/Pink purple: 0.15 mm2
1.18', ø0.19"
27
Unit: mm inch
Amplifier unitPulse output GT2-71D
0.94" 248.9
41.8
36.9
3
12.4
15 0.59" min. 20 21.1
17.4 0.69"
(Maximum when cover is opened) 82.9 3.26"
35.4
75.8 2.98" (Maximum when cover is opened) 132.6 5.22"
15 0.59" min.
14.6 0.57"
+0.4-0
45
21+0.02"-00.84"
69.5 2.74" min.
45
X X = 24 x (A-1) + 21 0.94" 0.84"When A amplifier units are closely mounted
GT2-75N/75P/76N/76P
Panel mounting bracket Panel cutout
23.8
11.7
69
38.8
24
49
Protective front cover
Material: (Mounting bracket) Polyacetal, (Protective front cover) Polycarbonate
Panel mounting bracket (Accessory)OP-84394
Amplifier unitPanel mount type
44.7 1.76"0.55"0.53"
2.05"
0.28"
0.09"0.78"
0.48"0.82"
0.47"
1.77"
0.33"
1.53"
1.77"
0.94"
0.94"
0.46"
1.93"
2.72"
0.16"
0.94"
0.06"
2.60"
13.913.4
7
2.3
23.9
66
1.5
52
19.8
8.5 4.1
20.9
(73) (2.87")
11.9
Panel thickness 1 to 60.04" to 0.24"
12.2
* Cable specifications (common to all amplifier units)
GT2-75N/75P: ø4.7 ø0.19", 12-core x Brown/Blue: 0.20 mm2, Black/White/Gray/ Orange/Green/Pink/Purple/Yellow/Red/Pink purple: 0.15 mm2, Cable length: 2 m 6.6'
GT2-76N/76P: ø4.7 ø0.19", 10-core x Black/White/Gray/Orange/Green/Pink/ Purple/Yellow/Red/Pink purple: 0.15 mm2, Cable length: 2 m 6.6'
*
Mounting bracket for DIN-rail mount type amplifier (Optional)OP-76877
End unit (Optional) (2 pcs.)OP-26751
When several units are connected
24 22
35
28.6
15
5 15
2-(4.4 × 3.4)(0.17" × 0.13")
2-ø3.4
6
DIN-rail mount
(22.6)(0.89")
20.8
53.8
9.2 35.4
6
L
53.8
10.1
Material: SPCC steel
Material: Polycarbonate, Stainless steel
123456789
101112131415
Number ofunits
ø0.13"0.59"
0.82"
0.24"
1.39"
2.12"0.36"
0.24"
2.12"53.82.12"
0.40"10.10.40"
60.24"
0.20"
0.87"0.94"
1.13"
0.59"
1.38"
L
24 0.94"48 1.89"72 2.83"96 3.78"
120 4.72"144 5.67"168 6.61"192 7.56"216 8.50"240 9.45"
264 10.39"288 11.34"312 12.28"336 13.23"360 14.17"
* Cable specificationsOuter diameter: ø4.7 mm ø0.19", Cable length: 2 m 6.6', 9-core x Brown/Blue/Purple/Pink/Orange/Green/Gray/White/Black: 0.15 mm2
135° max.
*
0.35"
1.39"0.83"0.79"
0.12"
1.45"
1.65"
0.49"
28
Dimensions
Unit: mm inch
When the supplied mounting bracket is attached
When the optional mounting bracket (OP-84331) is used
Amplifier unitLarge display GT2-100N/100P 159.5 6.28" Panel thickness: 1 to 6
79.8
1.57" 40
97.2
(119.6)
(139.4)
29.9
Screw hole for mounting OP84331Nominal diameter: 3 0.12", Tapping depth: 5 0.20" max.
Nominal diameter: 3 0.12",fastened with four tapping screws (supplied)
60 2.36"
138.8 5.46"
161.8 6.37" (Outer dimension of the supplied mounting bracket)
1.10" 28
1.34" 34
1.57" 4040
40.5 60 2.36"
1.10" 28
84.4
4.6 t=1.6 6.6
5.6 0.22" 5.6
150 5.91" 160 6.30"150 5.91"
4-ø5 ø0.20"
4-ø3.5
49.3 75.8
133 5.24"
82.7
0.05" 1.2
15.1
1.6
0.43" 110.48" 12.1
85.2 3.35"82 3.23"
+1 +0.04"-0 -0
139.5 5.49"
+1 +0.04"-0 -0
76 2.99"
GT2-E3N/E3P Expansion board
Panel cutout
Communication unit BCD output type DL-RB1A
Communication unit RS-232C communication type DL-RS1A
0.89"
1.46"
0.83" 1.39" ø0.13"
2.40"
1.24"
0.89"
0.59"2.76"
0.59"
1.12"
1.40"
2.10"
1.46"
2.76"
0.89"
0.83" 1.39"2.76"
1.46"
1.72"
2.10"
43.8
70
35.421.1
43.8
22.5
(48.2)(1.90") 37.2
51.337.2
2-(4.4 × 3.4)(0.17" × 0.13")
35.5
28.5
15
53.4
37.1
2-ø3.4
70
1531.4
70
35.421.1
53.4
37.1
22.5
(57.8)(2.28")
60.9
22.5
When the mounting bracket is attached (Optional)OP-60412
DIN-rail mount
When the mounting bracket is attached (Optional)OP-60412
DIN-rail mount
Material: SPCC steel
Material: SPCC steel
0.89"
0.59"
1.12"
1.40"
2-(4.4 × 3.4)(0.17" × 0.13")
35.5
28.5
15
22.5
34-pin MIL connector
www.keyence.com/cadCAD DATA Download Service
1.24"
1.46"2.02"
1.72"
0.59"2.76"70
1531.4ø0.13"
2-ø3.4
3.14" 1.94" 2.98" 3.26"
0.06"
0.59"
0.04" to 0.24"
1.18"
3.32"
0.18"
1.57"
0.22"
1.59"
0.06" 0.26"ø0.14"
3.83"
(5.49")
(4.71")
29
No. Calculation function Description
Number of connectable expansion units
Calculation mode Dedicated Calculation mode
C1 Maximum value
Displays the maximum value of the values of the main unit and expansion unit(s).
1 to 14 units
2 to 14 units
C2 Minimum value
Displays the minimum value of the values of the main unit and expansion unit(s).
C3 Degree of fl atness
Displays the difference between the maximum and the minimum value of the main unit and
expansion unit(s).
C4 Average Displays the resulting calculation of the average of the main unit and expansion unit(s).
C5 Reference difference
Displays the difference obtained by subtracting the display value of the main unit from each of
the expansion unit(s).Not selectable
C6 Twist Displays the degree of twist calculated from the values of four sensor heads. Only 3 units Only 4 units
C7 Warpage Displays the degree of warpage calculated from the values three sensor heads. Only 2 units Only 3 units
C8 Thickness Displays the thickness calculated by two sensor heads "sandwiching" a target between them. Only 1 unit Only 2 units
* Except GT2-71D.
30
Sensor head cable→P.15/step 2
Sensor head→P.13/step 1
Mounting bracket→P.15/step 3
Product confi guration
Reference
❙ Calculation functions using expansion units
The GT2-70 Series* enables calculations such as the maximum and the minimum values of several detection points when several expansion units (up to 14 units) are connected to a main unit. Outline of each calculation function is as follows:
About “Calculation mode”When “Calculation mode” is selected for “A1: Calculation mode”, the main unit outputs a calculation result, and output of the expansion unit is OFF.(Except for a case where “C5: Difference from reference display” is selected)
About “Calculation dedicated mode”When “Calculation dedicated mode” is selected for “A1: Calculation mode”, only the main unit outputs a calculation result, and the expansion unit outputs a judgment result based on each setting.
- The calculation mode can be selected for the main unit to which one or more expansion units are connected.
NOTE
- The calculation dedicated mode can be selected for the main unit to which two or more expansion units are connected.
- When the calculation dedicated mode is selected, “C5: Reference Difference” cannot be selected for calculation method.
- When the calculation dedicated mode is selected, a sensor head cannot be connected to the main unit. Attach the supplied “sensor head connector seal” to the sensor head connector of the main unit.
NOTE
❙ Bank function
With the Bank function, up to four patterns of HH, HIGH, LOW and LL set values, preset values can be registered in advance. Since the registered settings (four patterns) can be easily changed, this function is useful for detection of several targets.
❙ 5-output function (Except GT2-71MCN/71MCP)
This function enables differentiation of fi ve output statuses (HH, HIGH, GO, LOW and LL). HH and LL outputs can also be used for jam detection.
❙ About accuracy of the high-accuracy type
When the high-accuracy type measures a distance between two arbitrary points in the measuring range at an ambient temperature (20°C (68°F)), the deviation from the actual value is 1 µm 0.04 Mil or less. For example, when a measurement result is 11 mm 0.43", the actual value is in a range of 10.999 to 11.001 mm 0.4330" to 0.4331". For several measurements, variations in the measured value are 1 µm 0.04 Mil or less.
Contact →P.18/step 6
Display unit (amplifi er unit)→P.16/step 4-5
Communication unit→P.18/step 7-8
31
[Easy setup]Head installation is as easy as drilling a hole.
[Easy programming]Auto-tuning function enables simple, sensor-like tuning.
[Smart operation]Self-diagnostic function outputs an alarm when the sensor head cable becomes damaged
General purpose digital contact sensorGT Series
Features
Amplifi er unitsModel Appearance Type Output type
GT-71A
DIN railmount
Main unitNPN
GT-72A Expansion unitGT-71AP Main unit
PNPGT-72AP Expansion unit
GT-75A
Panelmount
Main unitNPN
GT-76A Expansion unitGT-75AP Main unit
PNPGT-76AP Expansion unit
Model Appearance Type
DL-RB1A BCD
DL-RS1A RS-232C
BCD output / RS-232C communication unit
Standard model
10-mm 0.39" stroke sensor head
GT-H10
22-mm 0.87" stroke sensor head
GT-H22
Total length 90 mm 3.54"Smallest length among the 10-mm 0.39" stroke type sensor heads
Shortest in its class
Low Stress model
10-mm 0.39" stroke, low stress sensor head
GT-H10L
22-mm 0.87" stroke, low stress sensor head
GT-H22L
Using low force spring
Air Push model
10-mm 0.39" stroke air push type sensor head
GT-A10
22-mm 0.87" stroke air push type sensor head
GT-A22
Setup
* 6 1 1 1 7 6 *
KA1-1010
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Laser Displacement (1D) LK-G Series
❙ Sampling rate of 50 kHz❙ Linearity of ± 0.02% of F.S.❙ Repeatability down to 0.01 µm 0.0004 Mil
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