KEYENCE GT2-500 Series - Manual (Page 10)

10 GT2-500-M-E
● Air cylinder type
*1 When the surrounding temperature is 20°C.
*2 This is a typical value at the center of the measuring range. The measuring force varies depending on the mounted condition of the dust boot.
*3 Connect an air tube to the exhaust valve so that no foreign materials enter from the valve.
*4 When using mounting bracket D (OP-84327) with GT2-A32/A50, vibration is 0.75 mm.
*5 The contact is a separately sold option.
■ Amplifier
* Precautions on use when units are added
3 units in total (15 sensor heads in total) – 1 main unit and 2 expansion units – can be added to the amplifier.
Be sure to mount the units (pre-mounted on metal plating) onto a DIN rail, and use an end unit (OP-26751) when expanding.
Furthermore, check the specification limits below for the number of expansion units.
Up to 3 units, including a main unit
Make sure that the Communication Unit output current is 10 mA or below.
Model GT2-A12K GT2-A12KL GT2-A12 GT2-A12L GT2-A32 GT2-A50
Detection system Scale shot system II Absolute type (without tracking error)
Measuring range 12 mm 32 mm 50 mm
Resolution 0.1 µm 0.5 µm
Indication accuracy *1 1 µm (P-P) 2 µm (P-P) 3 µm (P-P) 3.5 µm (P-P)
Measuring
force *2
When installed
facing down
1.2 N 0.4 N 1.2 N 0.4 N 2.1 N 3.2 N
When installed
sideways
1.1 N 0.3 N 1.1 N 0.3 N 1.8 N 2.8 N
When installed
facing up
1.0 N 0.2 N 1.0 N 0.2 N 1.5 N 2.4 N
Sampling interval 1 ms
Operation indicator 2-color LED (red, green)
Pressure range 0.25 to 0.5 MPa
Max. pressure 1.0 MPa
Fluid to use Dry air
Environmental
resistance
Enclosure rating IP67 *3 - IP67 *3 - IP67 *3
Surrounding
air temperature
0 to +55°C (No freezing)
Relative humidity 35 to 85% RH (No condensation)
Vibration *4 10 to 55 Hz, Compound amplitude 1.5 mm, 2 hours each in X, Y, and Z axis
Shock resistance 1000 m/s 2 (IEC60068-2-27) -
Material
Main unit Main unit cover: zinc die-cast, Cylinder: aluminum alloy, Air coupling socket (resin part): polyacetal, Air coupling socket (metal part): nickel plated brass, Indicator: polyarylate (PAR)
Dust boot FKM - NBR - NBR
Contact point *5
SUS304, tungsten
carbide
SUS304, SUS440C SUS304, SUS440C
Sensor head cable Sold separately (connected to M8 connector)
Weight (excluding sensor
head cable)
Approx. 145 g Approx. 340 g Approx. 405 g
Model GT2-500 GT2-550
Main unit/Expansion unit Main unit Expansion unit
Type Mount type DIN rail mount
Number of units that can be added * 2 units (up to 15 sensor heads)
Supply voltage 20 to 30 V DC, including 10% ripple (P-P) (power is supplied to GT2-550 from the main unit)
Current consumption 4500 mW max. (150 mA max. at 30 V)
Response time
hsp (3 ms), 5 ms, 10 ms, 100 ms, 500 ms, 1000 ms
(hsp (12 ms), 20 ms, 40 ms, 400 ms, 2000 ms, 4000 ms when using GT2-P***/PA*** with a sensor head)
Environmental
resistance
Surrounding air
temperature
-10 to +50
Relative humidity 35 to 85% RH (No condensation)
Vibration resistance 10 to 55 Hz, Compound amplitude 1.5 mm, 2 hours each in X, Y, and Z axis
Material Main unit cover: Polycarbonate, Cable: PVC
Weight Approx. 140 g Approx. 95 g
0 1 2 3 4 5 6 7 8 9 10 11 12
Measuring force (N)
Spindle retracted Spindle extended
Table 1. Relationship between spindle position and measuring force grouped according to used air pressure.
(When installing side mounting, the measuring force is -0.05 N. When installing upward mounting, the measuring force is -0.1 N.)
Spindle position (mm)
Applied pressure (MPa)
1.7
1.2
0.26 MPa
0.25 MPa
0.24 MPa
0.7