Complete Portfolio:Ultrasonic Sensors
2022-10-14
■The RU-U ultrasonic sensor series from Turck enables the user to cover large sensing ranges with fewer sensor variants. The Turck ultrasonic sensors in M08, M12, M18 and M30 and 40 x 40 housing styles thus effectively reduce the range of variants required for stock-keeping. This is made possible by the particularly short blind zones of the sensors, which offer large sensing ranges at the same time. In order to offer the right sensor for every application with only a few sensor variants, Turck has increased the versatility of the individual models: The simple, compact version of the RU40 and RU100 modules thus enables the user to set diffuse mode and retroreflective operation as well as NC and NO switching outputs with a teach adapter. The standard sensor variants offer several operating modes and enable the setting of switch windows or two separate switch points, either by a teach adapter or via a teach button directly on the sensor. The High-End versions can be operated as a switch and as an analog sensor. Different operating modes, temperature compensation or the output function can also be set via IO-Link. If several sensors are installed next to each other, the customer can set the sensor parameters in synchronization or multiplex mode, in order to prevent mutual interference of the sensors.
■Operating principle
●The operation of the sensors is based on the time of flight principle. When a sonic pulse is emitted and the time required by the reflected signal to be received again by the same sonic transducer is measured. The distance to the object is calculated on the basis of the known speed of sound in air and output as the measured value or as a switch signal. As the speed of sound depends on the air temperature, the sensors use a separate temperature measurement to compensate the time of flight difference at different temperatures.
●Ultrasonic sensor technology is generally an important link in the field of industrial sensors, which is positioned between inductive and photoelectric sensors due to its possible object detection ranges. However, the measuring principle is not based on an electromagnetic but a mechanical operating principle and therefore requires some additional knowledge for the application.
■Features
●Large measuring range
▲The newly developed sonic transducers enable large measuring ranges for the entire sensor series of up to 130 cm in the M18 version and 600 cm in the M30 version. The 300 cm version in the M30 in particular operates without the need for an enlarged transducer head. This increases the options available in existing applications and enlarges the application range.
●Short blind zone
▲The extremely short blind zone (e.g., only 2.5 cm in the M18 version with 40 cm range) ensures maximum downward compatibility. This enables the reliable detection of objects close to the sensor and optimum adaption of mounting depths – such as for level monitoring applications. As the blind zone has to be kept free to exclude signal errors, a short blind zone also increases mounting options and effective object detection.
●Robust mechanical design
▲The highly robust housing with a continuous threaded barrel completely made of metal is particularly short and stands out on account of the metal M12 connector, which is turned as one piece with the threaded sleeve. This eliminates any potential weak points that could cause damage in harsh environments and at low temperatures. The thread runs over the entire length of the sensor so that the mounting position can be varied as required within the mounting bracket.
●Flush-front membrane
▲The smooth sonic transducer front of the M18 and M30 sensors reliably prevents contamination and the formation of particle deposits.
▲The mechanical movement of the membrane even shakes off deposits and thus cleans itself. Particle deposits that can occur when humidity is high can likewise be simply wiped off completely, without any residue remaining in the transition area between the transducer layer and the transducer ring. Damage arising from sharp and pointed cleaning objects therefore becomes a thing of the past.
●Easy teach
▲To ensure simple and intuitive parameter setting, all M18 and M30 ultrasonic sensors offer a teach-in function that can be implemented via pin 5. The start of switch and measuring ranges can thus be set easily without the use of any external software.
▲The teach-in is carried out either via the teach adapter using the typical TURCK Easy Teach function or via sensor variants with integrated pushbuttons. The pushbuttons are fitted inside the metal housing and are thus protected from accidental actuation. The setting is carried out inside a fixed time window after a preceding voltage reset. The subsequent automatic lock reliably excludes the possibility of the sensor settings from being accidentally changed.
▲The compact M18 family of devices also have a teach input on pin 2, which makes this series 100% downward compatible with the previous series.
●IO-Link interface
▲Besides setting via the teach-in function, the High-End variants with a switch and analog output can also be parameterized via the version 1.1 IO-Link interface. The devices can be configured in different operating modes such as in opposed mode with exclusive send and receive operation. Other features include settings for the time in which the teach button can be used after a voltage reset or also the temperature compensation setting via the internal or optional external temperature sensor. This last feature enables a more precise measuring result by including the ambient temperature in the calculation.
▲The user has the choice between a rising or falling characteristic for the analog output signal, and the user can set the hysteresis for the switching output. If two independent switching outputs are required instead of the switching output and analog output, these can be set to PNP or NPN switching output types with an NC or NO function.
▲Several devices are installed in the same environment, any mutual interference must be prevented. The sensors can therefore be synchronized or set to multiplex mode, in which the individual devices operate sequentially. The 16-bit data width of the process value can be read at a transfer rate of 38,400 baud via the supported COM2 communication type.
■Benefits for the User
●Serviceability
▲As an alternative to the flexibly configurable PNP or NPN switching outputs and the current or voltage analog outputs, IO-Link enables the sensor to be precisely configured via software to meet application requirements. Besides the parameterization functions, IO-Link also enables the process value to be read out routinely at any time if the standard is used as a communication channel. This flexibility enormously increases serviceability and shortens the replacement lead time.
●Installation
▲Turck Easy Teach simplifies the installation and commissioning of the new ultrasonic sensors. The concept enables the user, for example, to precisely define the switching or measuring range limits without the uncertainty arising from turning a potentiometer. It is also possible to set parameters via IO-Link using the PACTware™ software standard popular with many suppliers. No proprietary software modules complicate the entry of the different settings and the maintenance of updates is considerably easier.
●Enhanced performance
▲The newly developed sonic transducers enable larger measuring ranges up to 130 cm in the M18 design and 600 cm in the M30 version. Larger transducer heads for larger ranges are no longer required. Together with the short blind zones this increases the options available in existing applications and widens the application range.
●Variant reduction
▲With their extremely short blind zones the sensors can also detect very close objects, thus providing greater flexibility for mounting. Together with the larger measuring ranges and the possibility to teach diffuse mode, retroreflective mode as well as NC and NO operation, the user can cover a wide range of applications with fewer models of Turck’s new ultrasonic sensor series.
●System availability
▲Maximum process safety is provided by the robust metal housing design in which the threaded sleeve and the connector thread are made from one piece, and also from the smooth front on which helps prevent dirt from accumulating. The sensor’s high immunity to interference also significantly contributes to the reliability of this product line.
■Operating principle
●The operation of the sensors is based on the time of flight principle. When a sonic pulse is emitted and the time required by the reflected signal to be received again by the same sonic transducer is measured. The distance to the object is calculated on the basis of the known speed of sound in air and output as the measured value or as a switch signal. As the speed of sound depends on the air temperature, the sensors use a separate temperature measurement to compensate the time of flight difference at different temperatures.
●Ultrasonic sensor technology is generally an important link in the field of industrial sensors, which is positioned between inductive and photoelectric sensors due to its possible object detection ranges. However, the measuring principle is not based on an electromagnetic but a mechanical operating principle and therefore requires some additional knowledge for the application.
■Features
●Large measuring range
▲The newly developed sonic transducers enable large measuring ranges for the entire sensor series of up to 130 cm in the M18 version and 600 cm in the M30 version. The 300 cm version in the M30 in particular operates without the need for an enlarged transducer head. This increases the options available in existing applications and enlarges the application range.
●Short blind zone
▲The extremely short blind zone (e.g., only 2.5 cm in the M18 version with 40 cm range) ensures maximum downward compatibility. This enables the reliable detection of objects close to the sensor and optimum adaption of mounting depths – such as for level monitoring applications. As the blind zone has to be kept free to exclude signal errors, a short blind zone also increases mounting options and effective object detection.
●Robust mechanical design
▲The highly robust housing with a continuous threaded barrel completely made of metal is particularly short and stands out on account of the metal M12 connector, which is turned as one piece with the threaded sleeve. This eliminates any potential weak points that could cause damage in harsh environments and at low temperatures. The thread runs over the entire length of the sensor so that the mounting position can be varied as required within the mounting bracket.
●Flush-front membrane
▲The smooth sonic transducer front of the M18 and M30 sensors reliably prevents contamination and the formation of particle deposits.
▲The mechanical movement of the membrane even shakes off deposits and thus cleans itself. Particle deposits that can occur when humidity is high can likewise be simply wiped off completely, without any residue remaining in the transition area between the transducer layer and the transducer ring. Damage arising from sharp and pointed cleaning objects therefore becomes a thing of the past.
●Easy teach
▲To ensure simple and intuitive parameter setting, all M18 and M30 ultrasonic sensors offer a teach-in function that can be implemented via pin 5. The start of switch and measuring ranges can thus be set easily without the use of any external software.
▲The teach-in is carried out either via the teach adapter using the typical TURCK Easy Teach function or via sensor variants with integrated pushbuttons. The pushbuttons are fitted inside the metal housing and are thus protected from accidental actuation. The setting is carried out inside a fixed time window after a preceding voltage reset. The subsequent automatic lock reliably excludes the possibility of the sensor settings from being accidentally changed.
▲The compact M18 family of devices also have a teach input on pin 2, which makes this series 100% downward compatible with the previous series.
●IO-Link interface
▲Besides setting via the teach-in function, the High-End variants with a switch and analog output can also be parameterized via the version 1.1 IO-Link interface. The devices can be configured in different operating modes such as in opposed mode with exclusive send and receive operation. Other features include settings for the time in which the teach button can be used after a voltage reset or also the temperature compensation setting via the internal or optional external temperature sensor. This last feature enables a more precise measuring result by including the ambient temperature in the calculation.
▲The user has the choice between a rising or falling characteristic for the analog output signal, and the user can set the hysteresis for the switching output. If two independent switching outputs are required instead of the switching output and analog output, these can be set to PNP or NPN switching output types with an NC or NO function.
▲Several devices are installed in the same environment, any mutual interference must be prevented. The sensors can therefore be synchronized or set to multiplex mode, in which the individual devices operate sequentially. The 16-bit data width of the process value can be read at a transfer rate of 38,400 baud via the supported COM2 communication type.
■Benefits for the User
●Serviceability
▲As an alternative to the flexibly configurable PNP or NPN switching outputs and the current or voltage analog outputs, IO-Link enables the sensor to be precisely configured via software to meet application requirements. Besides the parameterization functions, IO-Link also enables the process value to be read out routinely at any time if the standard is used as a communication channel. This flexibility enormously increases serviceability and shortens the replacement lead time.
●Installation
▲Turck Easy Teach simplifies the installation and commissioning of the new ultrasonic sensors. The concept enables the user, for example, to precisely define the switching or measuring range limits without the uncertainty arising from turning a potentiometer. It is also possible to set parameters via IO-Link using the PACTware™ software standard popular with many suppliers. No proprietary software modules complicate the entry of the different settings and the maintenance of updates is considerably easier.
●Enhanced performance
▲The newly developed sonic transducers enable larger measuring ranges up to 130 cm in the M18 design and 600 cm in the M30 version. Larger transducer heads for larger ranges are no longer required. Together with the short blind zones this increases the options available in existing applications and widens the application range.
●Variant reduction
▲With their extremely short blind zones the sensors can also detect very close objects, thus providing greater flexibility for mounting. Together with the larger measuring ranges and the possibility to teach diffuse mode, retroreflective mode as well as NC and NO operation, the user can cover a wide range of applications with fewer models of Turck’s new ultrasonic sensor series.
●System availability
▲Maximum process safety is provided by the robust metal housing design in which the threaded sleeve and the connector thread are made from one piece, and also from the smooth front on which helps prevent dirt from accumulating. The sensor’s high immunity to interference also significantly contributes to the reliability of this product line.
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