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A Cable-Extension Transducer, sometimes also known as a string pot, a draw wire senor, a string encoder or a yo yo pot, is a device used to detect and measure linear position and velocity using a flexible cable and a spring-loaded spool. Simply mount the transducer's body to a fixed surface and attach the stainless steel cable to the movable object. As the object moves, the transducer produces an electrical signal that is proportaional to the cable's linear extension or velocity. This signal can then be sent to a display, a PLC or data aquisition system |
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Cable-Exension Tranducers (CETs) are composed of four main parts: | |
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Measuring the movement and position of objects is easy with CETs. CETs can be installed in minutes, fitted into prcarous or tight areas and they do not require perfectly parallel alignment. They also offer great flexibility, a small size to measurement ratio and they cost less than rod or wand-type measurement devices. CETs can be used in a wide variety of applications including industrial factory automation, high-tech medical devices, structural and automotive testing, die-casting or injection molding, hydraulic cylinder control or just about anything else you can think of... |
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Compact group (DO 2500 mm) |
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I/O | ![]() |
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Technical data |
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Measurement range [mm] | 125 | 750 | 1250 | 1250 | 1250 | 2500 | |
Accuracy | 0,15% | 0,25...0,02% | 1,00...0,25% | 0,28...0,02% | 0,02% | 0,28...0,02% | |
Repeatability | 0,02% | 0,02% | 0,05% | 0,05...0,02% | 0,02% | 0,05...0,02% | |
Technical data |
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Casing material | Anode Aluminium | Anode Aluminium | Plastic (polycarbonate) |
Anode Aluminium /ABS |
Anode Aluminium | Anode Aluminium | |
Protection level | IP65 | IP50 | IP50 | IP65...67 depends on execution |
IP65 | IP50 | |
Casing |
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Noble steel covered with nylon | • | • | • | • | - | • | |
Noble steel | - | - | - | - | - | - | |
Thermoelastic plastic | - | - | - | - | - | - | |
Measurement cord |
|||||||
Potentiometer | • | • | • | • | - | • | |
Tachometer | - | - | - | - | - | - | |
0...10VDC | - | - | - | • | - | • | |
4-20 mA | - | - | - | • | - | • | |
Incremental encoder | - | • | • | • | • | • | |
RS 232 | - | - | - | • | - | - | |
CAN Bus | - | - | - | • | - | - | |
Devicenet | - | - | - | • | - | - | |
Absolute encoder | - | - | - | - | (•) | - | |
Electric connection |
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Cable for soldering | - | • | • | - | - | - | |
Wires | • | - | - | - | - | - | |
Cable for devices | • | • | • | • | (•) | • | |
Plug | - | • | - | • | • | • | |
Properties |
|||||||
Preferences | - | - | - | Protection against recoil | - | - | |
Typical application | Measurements in limited area | Measurements with high acceleration | Universal, resistant from axe shifts and free cord lose. | Mechanical materials or vehicles tests without high acceleration. | Elevators, Vehicles, Platforms |
Mechanical tests in laboratories | |
Group for industrial applications(DO 42500 mm) |
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technical data | ||||||
Measurement range [mm] | 6250 | 1500 | 6250 | 4300 | 13750 | 42500 |
Accuracy | 0,28...0,02% | 0,28...0,02% | 0,02% | 0,02% | 0,12...0,02% | 0,05...0,02% |
Repeatability | 0,05...0,02% | 0,05...0,02% | 0,02% 0,02% | 0,05...0,02% | 0,05...0,02% | |
Technical data | ||||||
Casing material | Anode Aluminium | Powder painted aluminium or noble steel | Anode Aluminium | Anode Aluminium | Covered aluminium or noble steel | Covered aluminium or noble steel |
Protection level | IP65...67* | IP65...68* | IP65 | IP65 | IP65...68* | IP65...67* |
* Depends on solution | ||||||
Casing |
||||||
Noble steel covered with nylon. | • | • | • | • | • | •(stal szlachetna przy dużych odległościach pomiarowych) |
Noble steel | • | • | - | • | • | - |
Thermoelastic plastic | • | • | - | • | • | - |
Measurement cord |
||||||
Potentiometer | • | • | • | • | • | • |
Tachometer | • | - | - | - | • | - |
0...10VDC | • | • | - | • | • | • |
4-20 mA | • | • | - | • | • | • |
Incremental encoder | • | • | • | • | • | • |
RS 232 | • | • | - | • | • | • |
CAN Bus | • | • | - | - | • | • |
Devicenet | • | • | - | • | • | • |
Absolute encoder | - | - | (•) | (•) | - | - |
Electrical connections |
||||||
Cable for devices | • | • | (•) | (•) | • | • |
Plug | • | • | • | • | • | • |
Properties | ||||||
Preferences | - | 1) different cables lead outs 2) EX version 3) integrated brushes |
- | - | 1) higher cable withdrawal force 2) EX version 3)brush system 4) cable blockade system |
EX version |
Typical applications | Difficult applications with high accelerations and big cycles quantity. Reliable models for difficult industrial applications: Elevators, scenes, vehicles ,hydraulic components, telescope applications, applications with big measurement distances. |
Are you interested in this product? Do you need additional information or individual pricing?
A Cable-Extension Transducer, sometimes also known as a string pot, a draw wire senor, a string encoder or a yo yo pot, is a device used to detect and measure linear position and velocity using a flexible cable and a spring-loaded spool. Simply mount the transducer's body to a fixed surface and attach the stainless steel cable to the movable object. As the object moves, the transducer produces an electrical signal that is proportaional to the cable's linear extension or velocity. This signal can then be sent to a display, a PLC or data aquisition system |
|
Cable-Exension Tranducers (CETs) are composed of four main parts: | |
|
|
Measuring the movement and position of objects is easy with CETs. CETs can be installed in minutes, fitted into prcarous or tight areas and they do not require perfectly parallel alignment. They also offer great flexibility, a small size to measurement ratio and they cost less than rod or wand-type measurement devices. CETs can be used in a wide variety of applications including industrial factory automation, high-tech medical devices, structural and automotive testing, die-casting or injection molding, hydraulic cylinder control or just about anything else you can think of... |
|
![]() |
|
Compact group (DO 2500 mm) |
|||||||
I/O | ![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|
---|---|---|---|---|---|---|---|
Technical data |
|||||||
Measurement range [mm] | 125 | 750 | 1250 | 1250 | 1250 | 2500 | |
Accuracy | 0,15% | 0,25...0,02% | 1,00...0,25% | 0,28...0,02% | 0,02% | 0,28...0,02% | |
Repeatability | 0,02% | 0,02% | 0,05% | 0,05...0,02% | 0,02% | 0,05...0,02% | |
Technical data |
|||||||
Casing material | Anode Aluminium | Anode Aluminium | Plastic (polycarbonate) |
Anode Aluminium /ABS |
Anode Aluminium | Anode Aluminium | |
Protection level | IP65 | IP50 | IP50 | IP65...67 depends on execution |
IP65 | IP50 | |
Casing |
|||||||
Noble steel covered with nylon | • | • | • | • | - | • | |
Noble steel | - | - | - | - | - | - | |
Thermoelastic plastic | - | - | - | - | - | - | |
Measurement cord |
|||||||
Potentiometer | • | • | • | • | - | • | |
Tachometer | - | - | - | - | - | - | |
0...10VDC | - | - | - | • | - | • | |
4-20 mA | - | - | - | • | - | • | |
Incremental encoder | - | • | • | • | • | • | |
RS 232 | - | - | - | • | - | - | |
CAN Bus | - | - | - | • | - | - | |
Devicenet | - | - | - | • | - | - | |
Absolute encoder | - | - | - | - | (•) | - | |
Electric connection |
|||||||
Cable for soldering | - | • | • | - | - | - | |
Wires | • | - | - | - | - | - | |
Cable for devices | • | • | • | • | (•) | • | |
Plug | - | • | - | • | • | • | |
Properties |
|||||||
Preferences | - | - | - | Protection against recoil | - | - | |
Typical application | Measurements in limited area | Measurements with high acceleration | Universal, resistant from axe shifts and free cord lose. | Mechanical materials or vehicles tests without high acceleration. | Elevators, Vehicles, Platforms |
Mechanical tests in laboratories | |
Group for industrial applications(DO 42500 mm) |
||||||
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|
technical data | ||||||
Measurement range [mm] | 6250 | 1500 | 6250 | 4300 | 13750 | 42500 |
Accuracy | 0,28...0,02% | 0,28...0,02% | 0,02% | 0,02% | 0,12...0,02% | 0,05...0,02% |
Repeatability | 0,05...0,02% | 0,05...0,02% | 0,02% 0,02% | 0,05...0,02% | 0,05...0,02% | |
Technical data | ||||||
Casing material | Anode Aluminium | Powder painted aluminium or noble steel | Anode Aluminium | Anode Aluminium | Covered aluminium or noble steel | Covered aluminium or noble steel |
Protection level | IP65...67* | IP65...68* | IP65 | IP65 | IP65...68* | IP65...67* |
* Depends on solution | ||||||
Casing |
||||||
Noble steel covered with nylon. | • | • | • | • | • | •(stal szlachetna przy dużych odległościach pomiarowych) |
Noble steel | • | • | - | • | • | - |
Thermoelastic plastic | • | • | - | • | • | - |
Measurement cord |
||||||
Potentiometer | • | • | • | • | • | • |
Tachometer | • | - | - | - | • | - |
0...10VDC | • | • | - | • | • | • |
4-20 mA | • | • | - | • | • | • |
Incremental encoder | • | • | • | • | • | • |
RS 232 | • | • | - | • | • | • |
CAN Bus | • | • | - | - | • | • |
Devicenet | • | • | - | • | • | • |
Absolute encoder | - | - | (•) | (•) | - | - |
Electrical connections |
||||||
Cable for devices | • | • | (•) | (•) | • | • |
Plug | • | • | • | • | • | • |
Properties | ||||||
Preferences | - | 1) different cables lead outs 2) EX version 3) integrated brushes |
- | - | 1) higher cable withdrawal force 2) EX version 3)brush system 4) cable blockade system |
EX version |
Typical applications | Difficult applications with high accelerations and big cycles quantity. Reliable models for difficult industrial applications: Elevators, scenes, vehicles ,hydraulic components, telescope applications, applications with big measurement distances. |
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