Reliable Speed Sensor for Conveyor Belt Weighing Systems
The Siemens SITRANS WS300 (7MH7177-2AD10-0) is a shaft-mounted speed sensor designed to provide accurate and consistent speed measurement for conveyor belt applications.
In belt weighing systems, accurate belt speed detection is essential for calculating material flow rate and totalized weight. The WS300 converts rotating shaft movement into a reliable pulse signal, allowing Siemens integrators and belt scale controllers to calculate precise material throughput.
Typical applications include:
Bulk material handling
Mining and minerals processing
Cement production
Coal handling systems
Aggregate processing
Industrial conveyor systems
High-Resolution Speed Measurement
The SITRANS WS300 provides stable speed feedback with a 256 pulses per revolution (PPR) output resolution.
Key advantages:
Accurate shaft speed monitoring
Reliable pulse signal generation
Improved belt weighing accuracy
Suitable for continuous operation
The sensor supports a wide operating speed range from 0.3 to 2,000 rpm, allowing use across different conveyor and material handling systems.
Direct Shaft-Mounted Design for Accurate Feedback
Unlike wheel-driven speed sensors that may be affected by belt slip or surface conditions, the WS300 uses a direct shaft-mounted installation.
Benefits include:
Direct measurement of pulley rotation
Reduced measurement errors caused by belt movement
Stable operation in industrial environments
Simple mechanical integration
This makes it particularly suitable for conveyor belt scales where consistent speed measurement is required for accurate weighing performance.
Rugged Industrial Construction
The SITRANS WS300 is designed for demanding industrial environments.
The sensor features:
Polyester-painted aluminum enclosure
NEMA 4X protection
IP65 environmental protection
Robust mechanical design for outdoor and industrial installations
The sealed enclosure helps protect internal components against dust, moisture, and harsh operating conditions.
Easy Integration with Siemens Weighing Systems
The WS300 is designed to work together with Siemens Milltronics belt scale systems and integrators.
It can provide speed input signals for systems including:
Belt scale integrators
Material flow monitoring systems
Conveyor weighing controllers
The sensor supports connection to up to two integrators, providing flexibility for system configuration.
Maintenance-Friendly Industrial Design
The shaft-mounted configuration provides a simple and reliable solution with minimal maintenance requirements.
Advantages:
No complicated alignment systems
Long service life
Reliable operation in continuous processes
Reduced downtime for conveyor systems
For industries where material flow measurement directly affects production efficiency, reliable speed feedback is essential.
Typical Applications
Mining & Bulk Material Handling
Used for:
Ore conveyor monitoring
Raw material transportation
Continuous production measurement
Cement & Aggregate Industry
Suitable for:
Limestone conveyors
Crusher feed monitoring
Material flow measurement
Power & Coal Handling
Applied in:
Coal conveyor systems
Fuel supply monitoring
Bulk material management
Industrial Manufacturing
Used for:
Production line conveyors
Material tracking systems
Process optimization
FAQ
What is Siemens 7MH7177-2AD10-0 used for?
The Siemens 7MH7177-2AD10-0 is a SITRANS WS300 shaft-mounted speed sensor used to measure conveyor belt speed in belt weighing and material handling applications.
How does SITRANS WS300 measure speed?
The sensor is mounted directly on a rotating shaft and generates pulse signals according to shaft rotation. The connected integrator uses these pulses to calculate belt speed and material flow.
What is the speed range of the Siemens WS300?
The WS300 supports a speed range of approximately 0.3 to 2,000 rpm with up to 2,000 pulses per revolution, while this specific model provides 256 PPR resolution.
Is SITRANS WS300 suitable for outdoor installation?
Yes. The WS300 features a rugged enclosure rated NEMA 4X/IP65, making it suitable for many outdoor and industrial environments.
What is the difference between SITRANS WS300 and other speed sensors?
The WS300 uses a direct shaft-mounted design, providing more accurate speed measurement compared with sensors that rely on contact wheels or belt surface movement. It is commonly selected for conveyor belt scale applications requiring stable speed feedback.
