Incremental bearing-free rotary encoder – GEL SEI10

Compact 2-channel Hall effect high-speed rotational speed sensor

Maintenance and wear-free speed sensor using magnetic scanning
Scanning of measuring scales (for example, target wheels made of ferromagnetic materials)
Reliable detection of high rotational speeds to creeping (0 Hz to 40 kHz)
Most reliable direction of rotation detection by evaluating two channels
Robust and compact stainless steel housing for use in harsh and confined applications

Inquiry & Support

Technical information

Properties

Incremental, differential measuring 2-channel speed sensor based on the magnetic principle
Highest signal quality for reliable evaluation in control systems
Customized assembly options
High EMC immunity for interference-free signal transmission in challenging industrial environments
Complies with the strict requirements of DIN EN 50155 and UNECE R10
Highest product quality with optional certification in accordance with DNV, SIL, ATEX or IECEx
ASIL B (D) compliant (ISO 26262) or SIL 2 to SIL 3 (IEC 61508) (on request by selectable error detection)

Advantages

Optimized lifecycle cost
Maintenance and wear-free
Space-saving and compact
Simple integration
Easy to install thanks to highly advanced calibration technology
High signal quality
Cost-effective
Suitable for safety applications

Downloads

Product	Document	Languages
GEL SEI10	Technical information	DE EN
GEL SEI10	Product information*	DE/EN

Registration required

Field of application

High-resolution detection of rotational speed and direction of rotation in motors, vehicle chassis or directly on wheels, especially robust for heavy-duty applications.

On- and off-road industrial vehicles
Agricultural vehicles
Special purpose machine construction

Dimensional drawings

Cable outlet straight

Cable length L is determined by type code

All dimensions in mm [inch]

Technical data

Power supply	Option A 5 V	Option B 24 V
Electrical data
Supply voltage U_B(reverse polarity protected)	5 V DC ± 10 % 4.5 to 5.5 V DC	4.5 to 24 V DC
Current consumption I_B(without load)	Maximum: 30 mA	Maximum: 70 mA
Frequency range	Maximum: 40 kHz
Duty cycle	Typical: 50% (minimum: 40 % / maximum: 60 %)
Phase offset	Typical: 90° (minimum: 70° / maximum: 110°)
Mechanical data
Housing material / Flange material	Stainless steel (aluminum and brass possible upon request)
Sensor weight (incl. 2 m cable)	approx. 140 g
Cable data
Cable	halogen-free and screened
Cable diameter	5.2 ± 0.1 mm
Cable cross section	4 × 0.5 mm²
Minimum bending radius static/dynamic	16 mm / 27 mm
Environmental tests
Working and operating temperature	-40 °C to +125 °C
Storage temperature	-40 °C to +125 °C
Dielectric strength	500 V AC/750 V DC (DIN EN 50155:2022-06)
Electromagnetic compatibility	DIN EN 61000-4-2:2009-12 (only ESD handling) DIN EN 61000-4-4:2013-04 (fast transients and burst) VO043644-21-100941 (UNECE R10) VW TL81000 (2021-19) - Interference Emission Antennas (RE-Test) - Interference Immunity Antenna ALSE - Interference Immunity Current Injection (BCI)
Salt spray test	ISO 9227-11
Vibration resistance	ISO 16750-3
Chemical loads	ISO 16750-5
Degree of protection on measuring side	IP 67
Vibration resistance	DIN EN 61373:2011-04 (shocks and vibration) DIN EN 60068-2-6:2008-10 (sinusoidal vibration)
MTTF value	2,000,000 h at 55 °C
Requirements for the target wheel
Material	Ferromagnetic steel
Tooth form	Involute gear teeth as per DIN 867 (others upon request)
Width	≥ 10 mm (smaller upon request)
Module m	1.00/1.25/1.50/1.75/2.00