GEL 15x
GEL 15XF
GEL 15xSSI
GEL 235
GEL 2035
GEL 2310
GEL 235 Accessories

GEL 8110
GEL 8115
GEL 8130
GEL 8135
GEL 8140
GEL 8180
GEL 8190
GEL 8310
GEL 8610

GEL 207
GEL 208
GEL 209
GEL 219
GEL 260
GEL 293
GEL 27xx

GEL 212
GEL 213
GEL 214

GEL 176
GEL 177
GEL 220

GEL 2432
GEL 2442
GEL 2443
GEL 2444

GEL 8810
GEL 8819

Programmable Preselect Counter GEL 104

GEL 247
GEL 248
GEL 2471
GEL 2472
GEL 2474
GEL 2477
GEL 2478

Temperature Sensor Gel 2161
Test Device for Minicoder GEL 210K
Test Device GEL 210TX
Accessories

Description

• Application approved speed sensor based on magnetic measurement principle
• Maintenance- and wear-free operation due to non-contact measurement of rotation
• Safe detection of slow rotation from 0 Hz without pulse loss and for high-speed rotation up to 25 kHz
• Suitable for ferromagnetic target wheels
• Two channels shifted by 90° provide the direction of rotation
• Robust and compact stainless steel housing suitable for harsh application
• Simple flange mounting
• Customized cable fittings

Features

• Module target wheel 1.00 to 3.50
• Measuring range 0 Hz to 25 kHz
• Temperature range -40 to +120 °C
• Protection class IP 68
• Type test according to EN 50155

Fields of application

Rail Vehicles

    - Traction control
    - Anti-slip
    - Motor Speed

Automation

    -Measurement of speed and positions at gears, motors and roller

Output signals

• 1-channel square-wave signals, inversed signals
• 2-channel square-wave signals, 90°-shifted, inversed signals, galvanically isolated

Technical data

Signal pattern	E	F	V	X	D	H
Electrical Data
Supply voltage VS (reverse polarity protected)	10 to 30 V DC
Current consumption per channel IS (without load)	≤ 30 mA (optional with frequency divider)			≤ 60 mA
Output signal (short circuit-proof)	square-wave signals
Output signal level high (1)	≥ VS - 1.8 V
Output signal level low (1)	≤ 1.5 V
Output current per channel	≤ 20 mA
Input frequency (target wheel)	0 Hz to 25 kHz
Output frequency	0 Hz to 25 kHz
Duty (depends on measuring scale and air gap)	50% ± 25%
Phase shift	–			typ. 90°
Slew rate (2 m cable)	≥ 10 V/µs
Electromagnetic compatibility	rail vehicles (EN 50121-3-2) industrial applications (EN 61000-6-1 to 4)
Insulation	500 V AC (EN 60439-1)
Mechanical data
Module m of target wheel	1.00 / 1.25 / 1.50 / 1.75 / 2.00 / 2.25 / 2.50 / 3.00 / 3.50
Permissible air gap (for module m) m: 1.00 to 1.25 [D.P.: 25.4 to 20.3] m: 1.50 to 3.5 [D.P.: 16.93 to 7.26]	typ. 0.7 mm (0.1 to 0.8 mm) typ. 0.7 mm (0.1 to 1.3 mm)/td>
Width of target wheel	≥ 10 mm (smaller ones on request)
Form of target wheel	involute gear as per DIN 867
Material of target wheel	ferromagnetic steel
Operating and ambient temperature	-40°C to +120 °C
Storage temperature	-40°C to +120 °C
Protection class	IP 68
Vibration resistance	200 m/s2 (acc. EN 60068-2-6)
Shock resistance	2000 m/s2 (acc. EN 60068-2-27)
Type test	EN 50155
Housing material of sensor	stainless steel
Weight of sensor (2 m cable)	approx. 550 g
Electrical Connection
Cable	Cable halogen free and screened (specification on request), cable outlet straight or lateral
Cable length	≤ 100 m
Cable diameter	8.2 mm			8.0 mm
Cable cross section	6 x 1 mm2			12 x 0.34 mm2
Cable type	LK1069			LK1076
Bending radius static / dynamic	24 mm / 41 mm

Frequency Divider

This option can be used to reduce the signal output frequency by a given factor. This is useful for applications in which the detection of a pre-specified toothed wheel would otherwise produce an output frequency too high for the control electronics.

Signal Pattern

Signal level, Electrical connection Dimensions

Signal level

Electrical Connection

Dimensions

Assembly Drawing

Type Code for Rail Speed Sensor Gel 247

Notes: For a special customized version a Y-No. will be created. A special version 247Yxxx is manufactured according to a drawing or application description and could differ from the technical standard specification.

Examples of customized cable connections:

Encoder End

Cable End

Lenord & Bauer: Rail Speed Sensors & Rotary Pulse Encoder