Speed sensors (non-contacting)

Non-contacting multi-channel stainless-steel speed sensor, difference-Hall or eddy current principle

FA52

Speed sensor FAW52

  • Due to its design and type approval according to DIN EN 50155 especially suitable for transport technology
  • Eddy current version: Scanning of all electrically conductive materials (steel or aluminium)
  • With voltage or current output signal
  • With up to 4 galvanically isolated sensors in one enclosure
  • Robust and high quality housing: IP69 pressure-tight and individually tested at 5 bar (for details see technical data)
  • Excellent vibration and shock resistance and double protection of the sensor head
  • Without magnetic preload and thus, no accumulation of metal chips
  • Connection outlet straight or lateral; with protective tubing on request
  • Detection of very low speed (near zero speed)

Description

Speed sensors of type FA52 are non-contacting multi-channel speed encoders with a stainless-steel flange and sensor tube. They measure frequency in accordance with the eddy-current or difference-hall-effect principle. They acquire the speed of ferromagnetic (FAH type) or electrically conductive (FAW type) gearwheels, e. g. gearwheels with various tooth shapes, screw heads, drill holes, apertures, grooves or pulse bands on smooth shafts (accessories). Their compact and robust design, as well as the relevant tests as per DIN EN 50155, make them ideal for applications in the field of transport technology, e. g. measuring speed at the traction motor, gearbox or wheelset. The sensors are available with various output signals.
Except otherwise specified, the sensors in the next table have voltage signal outputs.

TypeMeasuring principleSignal outputsSignal form
FAWZ52Eddy currentTwo square wave signals,
Q2 to Q1 is 90° phase shifted
FAHZ52Difference-Hall
FAWS52Eddy currentTwo square wave signals,
Q2 to Q1 is 90° phase shifted,
one rotation direction signal
FAHS52Difference-Hall
FAWD52Eddy currentTwo galvanically isolated square wave signals,
Q2 to Q1 is 90° phase shifted,
type FAHD52, FAWD52 with voltage signal output,
type FAHI52 with current signal output
FAHD52Difference-Hall
FAHI52
FAWQ52Eddy currentTwo + Two inverted square wave signals,
Q1 to Q2 and Q1_N to Q2_N are 90° phase shifted
FAHQ52Difference-Hall
TypMeasuring principleSignal outputsSignal form
FAHU52[..]-U01Difference-HallFour galvanically isolated square wave signals,
Q1 to Q2 and Q3 to Q4 are 90° phase shifted
FAHU52[..]-U02Difference-HallTwo square wave signals + two galvanically isolated square wave signals,
Q1 to Q2 and Q3 to Q4 are 90° phase shifted
FAHU52[..]-U03Difference-HallTwo galvanically isolated measuring systems, each with two square wave signals,
Q1 to Q2 and Q3 to Q4 are 90° phase shifted

Technical data

Supply voltage Us9 ... 32 VDC
(for type FAHU52 see datasheet)
Frequency rangeEddy current: 0.2 ... 25,000 Hz
Difference-hall-effect: 0.2 ... 20,000 Hz :
Measuring channelsDepending on sensor type:
2 measuring channels or
2 galvanically isolated measuring channels or
2 measuring channels and status channel for rotation direction detection or
4 galvanically isolated measuring channels or
2 measuring channels + 2 galvaically isolated measuring channels or
2 x 2 galvanically isolated measuring channels
Output signal and signal typeDepending on sensor type:
2 square wave signals or
2 square wave signals, 1 status signal or
2 square wave signals not inverted, 2 square wave signals inverted or
4 square wave signals
Scanning objectEddy current: Electrically conductive materials (steel, aluminium, other on request)
Difference-hall-effect: Ferromagnetic materials
Scanning object - distanceEddy current: Module 2: 0.2 ... 1.2 mm, recommended 0.7 ± 0.2 mm ; Module 3: 0.2 ... 1.5 mm, recommended 0.8 ± 0.2 mm
Difference-hall-effect: 0.2 ... 3 mm; recommended: 1.0 ± 0.5 mm
Operating temperature-40 ... +120 °C
Type FAHI with current output: -40 ... +100 °C
Protection classHousing: IP66/IP68/IP69

Ordering information

Type code structure
FAWZ52-11-SX07-M30-S0Example: FAWZ52-11-SX07-M30-S0
Measuring principle
 Measuring principle supplement
 Construction type and material
 Nominal length L1 of the sensor tube
 Connection outlet
 Electrical connection
 Sheath length
 Module
 Shield
Type code FAH[..]52
Measuring principleHDifference-HallH
Measuring principle
supplement
 Z2 output signals (voltage), galvanically connectedH
D2 output signals (voltage), galvanically isolated 
I2 output signals (current), galvanically isolated 
S2 output signals (voltage), galvanically connected with
status output (e. g. rotation direction detection)
 
Q4 output signals (voltage), galvanically connectedH
Construction type and material 52-Flange, stainless steel sensor tubeH
Nominal length 11-L1 = 29 mmH
Connection outlet  Without code: straight cable outletH
SLateral cable outlet 
Electrical connection XCable end standard (without protective tubing)H
XGSCable end, protective tubing, steel reinforced 
XGTCable end, protective tubing, textile reinforced 
XPCable end, protective tubing, polyamide 
Sheath length 05-Sheath length 2.0 m, halogen-free 
07-Sheath length 5.0 m, halogen-freeH
08-Sheath length 7.5 m, halogen-free 
09-Sheath length 10.0 m, halogen-free 
Module M10-Module m1 
M12-Module m1.25 
M15-Module m1.5 
 Without code: Module m2H
M25-Module m2.5 
M30-Module m3 
Shield  Without code: Shield attached to the sensor housingH
-S0Shield not attached to the sensor housing 
FA_ __ __ _-_ _-_ __ __ _-_ _-_ _Example:
FAHZ52-11-X07 (Preferred type)
Type code FAW[..]52
Measuring principleWEddy currentW
Measuring principle
supplement
 Z2 output signalsW
D2 output signals, galvanically isolated 
S2 output signals + Status output channel for direction of rotation detection 
Q4 output signals (2 + 2 inverted)W
Construction type and material 52-Flange, stainless steel sensor tubeW
Nominal length 11-L1 = 29 mmW
Connection outlet  Without code: straight cable outletW
SLateral cable outlet 
Electrical connection XCable end standard (without protective tubing)W
XGSCable end, protective tubing, steel reinforced 
XGTCable end, protective tubing, textile reinforced 
XPCable end, protective tubing, polyamide 
Sheath length 05-Sheath length 2.0 m, halogen-free 
07-Sheath length 5.0 m, halogen-freeW
08-Sheath length 7.5 m, halogen-free 
09-Sheath length 10.0 m, halogen-free 
Module  Without code: Module m2W
M25-Module m2.5 
M30-Module m3 
Shield  Without code: Shield attached to the sensor housingW
S0Shield not attached to the sensor housing 
FA_ __ __ _-_ _-_ __ __ _-_ _-_ _Example:
FAWZ52-11-X07 (Preferred type)
Type code FAHU52
Measuring principleHDifference-Hall
Measuring principle
supplement
 U4 output signals, galvanically isolated
Construction type and material 52-Flange, stainless steel sensor tube
Nominal length 11-L1 = 29 mm
Connection outlet  Without code: straight cable outlet
SLateral cable outlet
Electrical connection XCable end standard (without protective tubing)
XGSCable end, protective tubing, steel reinforced
XGTCable end, protective tubing, textile reinforced
XPCable end, protective tubing, polyamide
Sheath length 05-Sheath length 2.0 m, halogen-free
07-Sheath length 5.0 m, halogen-free
08-Sheath length 7.5 m, halogen-free
09-Sheath length 10.0 m, halogen-free
Module M10-Module m1
M12-Module m1.25
M15-Module m1.5
 Without code: Module m2
M25-Module m2.5
M30-Module m3
Shield  Without code: Shield attached to the sensor housing
S0-Shield not attached to the sensor housing
Signal variantsU01Four galvanically isolated output signals
U02Two output signals + two galvanically isolated output signals
U03Two galvanically isolated measuring systems, each with two output signals
FA_ __ __ _-_ _-_ __ __ _-_ _-_ _-_ _Example:
FAHU52-11-X07-U01

Preferred types

Features marked with an indicator letter in the right column in the table are preferred features. If you select a preferred feature for each placeholder (same indicator letter), the device is specified as a preferred type. Preferred types are available quickly from stock. Other types will be delivered according to scheduled appointments.

Special types

If our standard types do not correspond with your expectations, we are pleased to develop a special solution together with you.