Picture 1: Train braking control system
Failure of any sensor in the braking system may cause danger to passengers’ safety, meaning the train would have to slow down or even stop mid-journey, so the pressure sensor’s reliability is of paramount importance. Druck’s customer required the sensors to be highly accurate, stable and reliable in these harsh environments with a long service life. First-class quality control during production of the pressure sensors, fast local response from Druck’s China-based team pre and post sales were also a must for the customer.
Druck's solution
Due to Druck’s in-depth understanding of the customer’s application and the long-term technical and commercial collaboration with them on this project, Druck have established a close partnership with the customer. After the introduction of Druck’s UNIK5000 pressure sensor and following extensive qualification and acceptance testing, the customer was very satisfied with UNIK5000’s high accuracy, reliability and long-term stability as well as Druck’s localised technical support, production and service capability.
A customised pressure connector was designed to further protect the pressure sensor from the damage of pressure shock. An M12*1 4pin electrical connector was chosen to make sure the sensor is IP65 dustproof and waterproof. QR codes were added to the sensors to help customer achieve digital production management. ESS (Environmental Stress Screening) test was also customised according to the customer’s requirements to ensure the quality of the product.
