Hastighetsvakter

4B's line of speed switches includes: proximity, inductive, zero speed, stop motion and rotech encoders to monitor dangerous belt slip, underspeed or stop conditions on conveyors, bucket elevators and any other shaft driven machinery. Our non-contacting sensors can be used to detect screw conveyor flights, elevator bucket bolts and other moving ferrous targets. Speed switches can be connected to a PLC or to one of 4B’s hazard monitoring systems to provide alarm and/or shutdown of your machinery when dangerous conditions are detected.

View our full Electronics Catalogue here.

 
Certification:

ATEX

ATEX
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UKEx

UKEx
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IECEx

IECEx
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IECExv3

EACEX

EACEX
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EACEx

CnEx

CnEx
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Nepsi

InMetro

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CSA

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CE

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  • ATEX and IECEx Zone 20 (Dust) and Zone 0 (Gas) Approved
  • Signals underspeed for bucket elevators, conveyors and all rotating machinery
  • Inductive proximity sensor in 30mm diameter housing, which detects rotating metal target
  • 20% underspeed set point
  • 2 wire & 5 wire versions available
  • Easy and reliable calibration procedure by using a magnet
  • Non-contacting & failsafe
  • Compatible with the Whirligig speed sensor mount
Certification:

CE

CE
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CSA

CSA
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GOST-R

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  • Microprocessor controlled speedswitch
  • Signals underspeed conditions for bucket elevators, conveyors and all rotating machinery
  • Inductive proximity sensor, in DIN style housing, which detects a rotating metal target
  • Dual set-points at 10% and 20% underspeed
  • Non-contacting & failsafe
  • Compatible with the Whirligig speed sensor mount
Certification:

ATEX

ATEX
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ATEX Logo

UKEx

UKEx
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EACEX

EACEX
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EACEx

CnEx

CnEx
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Nepsi

CE

CE
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CE Logo
  • Fully Guarded Target for Easy Mounting of Motion Sensors
  • For DIN Style and Standard Cylindrical Inductive Sensors
  • Easy Installation - Only Requires M12 Tapped Hole in the Machines Shaft or Use a Mag-Con™ for Magnetic Connection
  • Available with 1, 2, 4 and 8 Targets per revolution
  • Works with All 4B Speed Switches and Inductive Sensors
Certification:

CE

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  • Heavy duty shaft sensor mount
  • Manufactured in stainless steel casing for heavy duty usage
  • Suitable for all Braime sensors & other industry standard cylindrical sensors
  • Not affected by shaft or machine vibration
  • 2/4 pulse target (as standard)
  • Easy to install, safe
Certification:

ATEX

ATEX
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ATEX Logo

UKEx

UKEx
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IECEx

IECEx
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IECExv3

CSA

CSA
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CE

CE
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  • Rotating shaft monitor
  • Polypropylene housing
  • For light duty applications, IP66
  • Provides information on shaft speed, direction, position or revolution
  • For conveyors, elevators, mixers, fans, pumps, grinders & other mechanical handling systems
  • Compatible with the "Magcon" quick-connect device
Certification:

ATEX

ATEX
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ATEX Logo

UKEx

UKEx
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IECEx

IECEx
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IECExv3

CSA

CSA
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CSA logo

CE

CE
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CE Logo
  • Rotating shaft monitor
  • Aluminium housing
  • Provides information on shaft speed, direction, position or revolution
  • For conveyors, elevators, mixers, fans, pumps, grinders & other mechanical handling systems
  • Heavy duty versions - suitable for the most severe industrial environments, IP65
  • Compatible with the "Magcon" quick-connect device
Certification:

ATEX

ATEX
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ATEX Logo

UKEx

UKEx
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IECEx

IECEx
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IECExv3

CSA

CSA
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CSA logo

CE

CE
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CE Logo
  • Rotating shaft monitor
  • 304/316 stainless steel housing
  • Provides information on shaft speed, direction, position or revolution
  • For conveyors, elevators, mixers, fans, pumps, grinders & other mechanical handling systems
  • Ultra heavy duty version - suitable for the most severe industrial environments 
  • IP67
Certification:

ATEX

ATEX
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ATEX Logo

UKEx

UKEx
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IECEx

IECEx
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IECExv3

CSA

CSA
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CSA logo

CE

CE
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CE Logo
  • Heavy-duty belt speed monitor
  • Monitors belt speed, slip & distance
  • Totally enclosed & self contained trailing arm running on return side of conveyor belt
  • Maintenance free for maximum reliability
  • Non standard wheel diameters available
  • 1 to 1,000 pulses per revolution
  • Multiple Outputs
  • Intrinsically safe option available
  • -25 to +100 deg Celsius versions
  • IP67

 

Certification:

ATEX

ATEX
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ATEX Logo

CSA

CSA
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CSA logo

CE

CE
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CE Logo

IECEx

IECEx
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IECExv3
  • Microprocessor controlled underspeed monitor
  • Signals underspeed for bucket elevators, conveyors and all rotating machinery
  • Inductive proximity sensor in 30mm diameter housing, which detects rotating metal target
  • Single set-point ~ 20% underspeed 2 wire & 5 wire versions available
  • Non-contacting & failsafe
  • Compatible with the Whirligig speed sensor mount