▪Modular optical length measuring system with stainless steel mesh, especially suitable for large strokes (length up to 30’040 mm).

▪Robust and durable anodised aluminum profiles.

▪Coupling seals between the modules for a better fit of the mechanical parts (in the case of disassembly and assembly).

▪Resolutions up to 0.1 microns, accuracy ± 10 microns.

▪Linear thermal expansion coefficient λ = 10.6 x 10-6 ° C-1.

▪Reference indexes at coded distance or at constant step (50 mm) or user-defined positions.

▪Output version GMSV40: sine wave or GMST: TTL.

▪Built-in protection against overvoltage and short circuits, as well as to reverse the polarity of the voltage supply.


TypeResolutionGrating pitch
Accuracy grade
Max. traversing speed
Measuring lengthReference indexes
Output signals
Protection class
Datenblatt
GMS V40
up to 0.1 µm
40 µm
± 10 µm
60 m/min
up to 30,040 mm with steps of 200 mm.
Segments of different lengths
at constant step (50 mm), selectable with a magnet or at coded distance (80 mm)sine wave 1 VppIP 53 standard IP 64 pressurizeddownload PDF
GMS T10 - 5 - 1 - 0.5 µm40 µm
± 10 µm
60 m/min
up to 30,040 mm with steps of 200 mm.
Segments of different lengths
at constant step (50 mm), selectable with a magnet or at coded distance (80 mm)LINE DRIVERIP 53 standard IP 64 pressurizeddownload PDF