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Piston sensors

For sequential and dual-line metering devices

SKF offers three types of piston position sensors: universal, bipolar and inductive.

Universal And bipolar Piston sensors are position sensors that are screwed into metering devices along with a corresponding high-pressure-resistant adapter. The sensors detect piston position through the adapter without direct contact with the piston. Sensor adjustment occurs automatically after a few piston strokes. The universal piston sensor automatically detects the pinout of the connected cable. The sensor is available in two- or three-wire versions (with cable break protection). The bipolar piston sensor is available in a two-wire version only. The signal is sent to pins 1 or 4. The sensor is suitable for installation on mobile vehicles, including agricultural and construction equipment.

Inductive The piston sensor can be connected directly to the metering device without an adapter. This type of sensor is more resistant to magnetic fields, so it operates more reliably in environments with electromagnetic interference. These sensors are suitable for installation on so-called "valve islands." A strong external magnetic field interferes with reliable piston position detection, leading to detection failures and insufficient lubrication. However, inductive sensors are not susceptible to this problem. The sensor is available in a 3-wire design.

Features and Benefits

  • The timer on the external controller detects a signal from the operating function
  • The counter is used as a cycle switch with an external controller
  • Inductive piston sensors operate reliably in strong magnetic fields, eliminating the risk of insufficient lubrication.

Application areas

  • Sequential and dual-line dosing devices
  • Construction equipment
  • Agricultural machinery
  • Machine tools
Brochures and manuals
 Product brochure (136.1 KB)
 Operating Instructions - Bipolar and Universal Piston Sensors (781.6 KB)
 Operating Instructions - Inductive Piston Sensors (1.1 MB)
Category:

Description

Technical specifications
Sensor type Universal Bipolar Inductive
Operating principle Magnetic sensor Magnetic sensor Inductive sensor
Electrical characteristics 3-wire, DC, PNP
2-wire, DC, PNP/NPN		 2-wire, DC, PNP/NPN 3-wire, DC, PNP
Body material stainless steel 1.4016 1.4016 V4A (1.4571)
Material (active part) stainless steel 1.4404 1.4404
Material (connector) PEI PEI
Temperature range From -40 to +85 °C
(from -40 to +185 °F)		 From -40 to +85 °C
(from -40 to +185 °F)		 From -40 to +80 °C
(from -40 to +176 °F)
Lubricants Plastic lubricants up to and including NLGI class 2 (3); synthetic and mineral oils
Pressure 1) up to 400 bar (5800 psi)
Protection class 2) IP65 / IP68 / IP69K IP67
Switching function normally open contact
Connection type M12x1, code A
Operating voltage UB 10–36 VDC
Switch status indicator Yellow LED
Switching frequency max 10 Hz max 200 Hz
Magnetic field resistance From -0.5 to +0.5 mT From -50 to +50 mT
Short circuit protection ● ● ●
Reverse polarity protection ● ● ●
Overload resistance ● ● ●
  1. 1)
    depending on the type of dosing device
  2. 2)
    with the cable joint correctly connected

Ordering information for inductive piston sensors

Inductive piston sensors can be ordered as a kit with an O-ring. A cable with an M12x1 connector is supplied separately.

Article Suitable for dosing device type
Индуктивный датчик поршня для VPB 5781-00000003 VPB
Индуктивный датчик поршня для VPK/PSG1 5781-00000002 VPK / PSG1
Индуктивный датчик поршня для VPK/PSG2 5781-00000001 VP / PSG2
Индуктивный датчик поршня для SSV 5190-00000008 SSV / SSVD / SLC / VSG / VSL
237-13442-4 Cable with M12x1 connector

Ordering information for universal and bipolar piston sensors

Piston sensors can be ordered separately, i.e., without an adapter, O-ring, or cable. A cable with an M12x1 connector is also supplied separately. Piston sensors can be supplied complete with a corresponding distributor adapter and O-ring. Furthermore, universal piston sensors for SSV, SSVL, SSVD, SSVDL, and VS…-NP series metering devices are available complete with an O-ring, adapter, and cable of varying lengths and connector options.

Датчики поршня и переходники

Ordering information
Article Description
Универсальный датчик поршня для дозирующих устройств серий SSV, VPB, VPK, VP и PSG 234-13163-9 Universal piston sensor
Биполярный датчик для VP/PSG2 234-11454-1 Bipolar piston sensor
237-13442-4 Cable with M12x1 connector
Kits with piston sensor, O-ring and adapter for metering devices
Article Suitable for dosing device Type
Универсальный датчик поршня для VP/PSG2 24-0159-6025 PSG2 Universal
Биполярный датчик поршня для VP 24-0159-6021 VP Bipolar
Комплект с универсальным датчиком поршня для VPK/PSG1 24-0159-6024 VP / PSG1 Universal
Комплект с биполярным датчиком поршня для VPK/PSG1 24-0159-6022 VPK Bipolar
Комплект с универсальным датчиком поршня для VPB 24-0159-6023 VPB Universal
Комплект с универсальным датчиком поршня для VPB 24-0159-6028 VPB Bipolar
24-0159-6026 PSG3 Universal
Комплект с универсальным датчиком поршня для SSV 519-85224-1 SSV / SSVL / SSVD / SSVDL / VS… 1) Universal
Kits consisting of a universal piston sensor, O-ring, adapter cable and adapter
for SSV / SSVL / SSVD / SSVDL / VS… dosing devices
Article Adapter cable Cable length
m
664-85242-4 Unterminated cable, 4 wires 10
664-85242-7 Unterminated cable, 4 wires 5
664-85282-9 Wire end crimping sleeve 10
664-85282-8 Wire end crimping sleeve 5
664-85282-7 Wire end crimping sleeve 3
664-85282-6 Wire end crimping sleeve 2
664-85282-5 Wire end crimping sleeve 0,6
664-85290-2 Wire End Crimping Sleeve, Marked, 2 Wires 1,8
664-85290-1 Wire end crimping sleeve and corrugated tube, 2 wires 3
664-85242-6 Bayonet plug, 4/2-pin 30
664-85290-4 Bayonet plug, 4/2-pin 10
664-85242-5 Bayonet plug, 4/2-pin 7
664-85242-2 Bayonet plug, 4/2-pin 3
664-85290-5 Bayonet plug, 4/2-pin 0,4
664-85242-9 AMP plug, 4/2-pin 12
664-85242-8 AMP plug, 4/2-pin 7
664-85242-3 AMP plug, 4/2-pin 3
664-85282-2 German plug 04-2P, 2-pin 5
664-85282-1 German plug 04-2P, 2-pin 3
664-85242-1 German plug 04-2P, 2-pin 0,3
664-85282-3  German plug 06-2S, 2-pin 5
664-85290-3 M12 plug, code A 5
  1. 1)
    To retrofit existing VS metering units with the sensor, please contact the SKF Lubrication Systems Technical Service.

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