In the selection processRuhr connector comprehensive testerWhen considering, it is necessary to comprehensively consider core parameters, functional adaptability, operational convenience, and cost-effectiveness. Specific recommendations are as follows:
1、 The core parameters must meet the requirements of testing accuracy and range
Axial force measurement: Priority should be given to instruments with a range covering 1-100N (some models can be extended to 200N) and an accuracy of ± 0.5% FS (full range) or higher. For example, in the medical field, it is necessary to detect the separation force of non locking joints 23-25N and locking joints 32-35N. High accuracy can ensure data reliability.
Torque measurement: The recommended range is 0.01-0.50N · m (some models can be extended to 1.00N · m), with an accuracy of ± 0.5% FS or higher. If the locking joint needs to maintain a torque of 0.018-0.020N · m without loosening, it needs to be achieved through a high-precision torque sensor.
Pressure testing: Positive pressure range of 0-500kPa (partially extended to 1000kPa), negative pressure range of -10-94kPa, accuracy of ± 0.5% FS or higher (such as 0.25% FS), to meet the leakage rate detection requirements of 300kPa positive pressure holding for 30 seconds and negative pressure holding for 20 seconds in sealing testing.
2、 Function needs to adapt to multi scenario testing requirements
Multi project integration: Choose instruments that can simultaneously detect liquid leakage, gas leakage, separation force, unscrewing torque, ease of assembly, anti slip properties, stress cracking, and other performance indicators to avoid the need to purchase multiple devices due to single functionality. For example, in the medical field, it is necessary to verify the stress cracking situation of the joint after assembly and standing for ≥ 48 hours, and the instrument needs to have long-term stability testing function.
Fixture adaptability: Equipped with specialized fixtures such as circular, square, and irregular shapes, supporting the fixation of 1ml, 5ml, and 10ml syringe connectors and locking/non locking type Luer connectors to ensure accurate and offset free testing positions.
Environmental adaptability: If testing is required in high temperature, low temperature, high humidity and other environments, instruments with strong stability should be selected, such as measuring accuracy changes not exceeding ± 3% and sensor sensitivity changes not exceeding ± 5%.
3、 Convenient operation reduces the threshold for use
Interface design: Choose an instrument with a 7-inch high-definition LCD touch screen and support for switching between Chinese and English. The operation interface is simple and intuitive, making it easy to set parameters (such as axial force range, torque value, pressure value, holding time) and view results. For example, Sanquan Intelligent's instruments have clear operation prompts and alarm functions, and can display test curves in real time (such as force time curves, pressure time curves).
Data Management: Supports data storage, export (PDF/Excel format), and printing functions for easy quality traceability and analysis. For example, medical companies need to store raw test data to cope with regulatory inspections or customer complaints, and instruments need to have at least 100000 data storage capacities.
4、 Cost effectiveness needs to balance functionality and cost
Function selection: Choose the model based on actual needs to avoid blindly pursuing large and comprehensive equipment. For example, if only separation force and torque need to be detected, a model with simplified functions can be selected to reduce procurement costs.
Price comparison: Compare prices of different brands and models while meeting precision and functional requirements. For example, domestic instruments are usually priced lower than imported instruments, but it is necessary to ensure that their core components (such as sensors) are imported or of equivalent quality.