Ultrasonic Double Sheet Sensor Overview
The TA0200DSS Ultrasonic Double Sheet Sensor is engineered for reliable, contactless detection of single sheets, double sheets, multiple sheets, and misfed materials. Using advanced ultrasonic sensing technology, it delivers stable performance regardless of the target’s color, material, or vibration.
Designed to overcome the limitations of traditional photoelectric and mechanical detection methods, this sensor provides precise sheet monitoring across a wide range of materials, including transparent films, thin metal sheets, solar silicon wafers, PCB boards, coated sheets, and other flat materials within its operating range.
Key Features of the Ultrasonic Double Sheet Sensor
- Advanced ultrasonic sensing technology for contactless sheet detection
- Accurately detects single sheets, double sheets, multiple sheets, and misfeeds
- Unaffected by object color, material type, or vibration
- Sensing range: 20 to 60 mm
- Optimal operating distance: 45 mm
- Sensor frequency: 200 kHz
- Operating voltage: 18 to 30 V DC with 10% pp ripple
- 3 switching outputs, NPN, NC
- Rated operating current: 3 x 100 mA, with short-circuit and overload protection
- Switch-on delay: approx. 15 ms
- Switch-off delay: approx. 15 ms
- Protection rating: IP67
- Equipped with a 2 m PVC cable connection
LED Indication
- Blue LED: No sheet detected (Air)
- Green LED: Single sheet detected
- Red LED: Double sheet detected
Supported Materials
According to the provided documentation, the Ultrasonic Double Sheet Sensor is compatible with a wide variety of materials, including:
- Paper from 20 to 1,200 g/m²
- Metal-laminated sheets
- Films up to 0.4 mm thick
- Self-adhesive films
- Sheets up to 0.3 mm
- Ultra-fine corrugated cardboard
- Transparent film
- Thin metal sheet
- Solar silicon wafer
- PCB circuit board
- Coating machine thin sheet
Applications
The TA0200DSS Ultrasonic Double Sheet Sensor is widely used in industries and equipment that require accurate sheet detection, including:
- Paper manufacturing
- Stamping equipment
- Instant noodle packaging machines
- Food packaging systems
- Solar wafer production equipment
- Coating machines
- Automatic binding machines
- Other industrial sheet detection applications
Electrical and Mechanical Specifications
- Operating voltage: 18 to 30 V DC
- Ripple: 10% pp
- No-load supply current I0: < 80 mA
- Input type: Function input
- 0-level: -UB to -UB + 1 V
- 1-level: +UB -1 V to +UB
- Pulse length: 100 ms
- Impedance: 4 k
- Output type: 3 switch outputs, NPN, NC
- Rated operating current: 3 x 100 mA
- Short-circuit and overload protected
- Voltage drop Ud: 2 V
- Protection rating: IP67
- Connection type: 2 m PVC cable
- Core cross-section: 0.14 mm2
- Housing: Nickel-plated brass; plastic components: PBT 304
- Transducer: Stainless steel
- Weight: 150 g
Installation Notes
Recommended Mounting Distance
For best performance, mount the sender and receiver 40 mm ± 3 mm apart. The sensor offers a sensing range of 20 to 60 mm, with 45 mm as the optimal operating distance.
Alignment Requirements
- The maximum incline between sender and receiver should not exceed 2°
- Coaxiality must be ≤ 0.5 mm
Installation by Material Type
- Vertical installation to the sheet is recommended for paper and thin films
- Install at a 27° angle to the moving sheet for thin metal sheets or thicker plastic films
- For paper types that cause faulty switching during vertical installation, a 45° mounting angle may improve detection performance
- If corrugated cardboard is measured at an angle to the corrugation direction, even fine corrugated cardboard can be reliably detected
Additional Installation Guidance
- If the sender is built in, or if sheet guidance is present between the sender and receiver, the borehole diameter must be at least 12 mm
- A borehole diameter of 18 mm is recommended for optimal installation
- The cable between sender and receiver must not be connected to an external potential
- The distance between the sender or receiver and the passing sheets must not exceed 7 mm
Response Time and Control Input
The sensor includes a control input “E” that allows selection of different response times:
- If the control input is not switched or is connected to M, the response time is 2.5 ms
- If the control input is connected to L+, the response time is 6.5 ms
Operating Status
The Ultrasonic Double Sheet Sensor operates continuously. When a double sheet or misfeed is detected, the corresponding output is triggered after the selected response time. Once the condition disappears, the output resets after the switch-off delay.
Maintenance
This sensor is maintenance-free under normal operating conditions. To ensure long-term reliability, regular cleaning of the sensing surfaces and routine inspection of screw and plug connections are recommended.