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Model GMR Series

GMR2
Induct-Sinusoidal Encoder
GMR2

GMR2/GMRC-200 series is a high-resolution robust linear encoder
of which structure is simplified and can enjoy heat-resistant 120°C.
Succeeding to GMR sensor principle of operation, sleeve dia has
now widened Φ18mm and offering more robust structure.
Detecting absolute position of each sleeve pair within one pitch of
51.2mm and incremental position over one pitch by counting pitches.
GMR2 series are the semi-absolute linear encoder of 24 bits
integrated data of one pitch absolute and pitch count.
SC type has now been added making cable duct mount possible.

extremely high resistant to harsh circumstances due to no
electronic parts employed in the sensor
integrated into hydraulic cylinder and can be used for
equipment of such as steel-mill plant
no wear-out expected since no mechanical contact
between sensor-rod and sleeve
resolution 6.25μm of absolute output, in addition incremental
output is prepared.

Specifications

Sensor
Effective stroke25.6mm-1996.8mm
Absolute sensing51.2mm
Accuracy0.15mm+0.01mm×(stroke/51.2)
Operating temp-20°C-+120°C
Storage temp-40°C-+130°C
Operating humidity10-100%RH
Vibration20G (10-150Hz) direction XYZ
Shock100G 6ms direction XYZ
Admissible pressure35MPa (probe)
Oil proofmineral oil, water-glycol / phosphoric acid ester, fatty acid ester
ProtectionIP67 (10kPa, 30min)
Cable (max)genuine 200m / KPEV-S 100m
Controller
OutputOpen collecor photo isolate
Resolution0.00625mm
Positional output24bit (13bit absolute+11bit pitch count)
Output CodeBinary or Gray
Sample rate5kHz / 2.5kHz / 1.25kHz / 0.625kHz
Power supplyDC 22-30V
Consumption< 8W (DC24V 0.3A)
Operating temp-20°C-+65°C
Storage temp-40°C-+75°C
Operating humidity10-90%RH (no-condense)
Vibration2G (10-150Hz)
Shock50G (11ms)
Dielectric withstand voltageAC500V @ 1 minute
Insulation resistance>=10MΩ with 500VDC
ProtectionIP30
Dimensions50W×270H×140D (connector not included)

(Note)
Output code and sample rate are configurable at user side by switch integrated.

Model No.

(1):sleeve dia Φ18 type
(2):cable duct mount type (cable direction radial)
(3):stroke (unit 0.1mm, multiple of 25.6)
(4):Z dimension (unit 0.1mm)
(5):cable length (unit 1m)

(1):GMR2 controller
(2):output 01:pararell 02:parallel/incremental
(3):for SC5R type sensor
(4):resolution UF:6.25μm
(5):code B:binary G:gray

Dimensions

GMR2-SCR5 sensor GMR2 sensor GMRC controller (SC type is also same shape) 
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