Performance Features
1. Automatic Weight Loading System
Employs a binary weighting system with fewer weights, simplified
calculation logic, and low failure rate
Integrated dust cover design effectively isolates dust and
moisture, ensuring precision and stability
Independent pneumatic loading device completes weight
addition/subtraction within 5 seconds for precise, rapid loading
Built-in temperature/humidity, RPM, and displacement sensors
monitor piston system operation in real time
Piston system utilizes high-strength tungsten carbide with patented
fracture protection
Modular design facilitates installation, disassembly, storage, and
calibration transport (includes aviation-grade carrying case)
Minimal moving parts ensure high reliability and simplified
maintenance
2. Intelligent Pressure Generation System
Servo motor synchronizes piston cylinder for precise and stable
pressure regulation
10.1-inch touchscreen operation supports automated control and
real-time data processing/storage
Single pressure output port (M20×1.5) with multi-channel expansion
capability
Provides RS485 serial and Ethernet communication for remote control
System stabilization time ≤ 120 seconds for rapid response
Built-in drainage system prevents pipeline blockages
Power supply: AC (220±10)V, 50Hz
Typical Applications
Calibration of precision pressure gauges, digital pressure meters,
pressure transmitters, pressure sensors, etc.
Establishment of pressure standards for metrology institutes and
third-party testing laboratories at all levels
High-precision pressure measurement applications in power
generation, petrochemical, aviation, and scientific research
sectors
Technical Specifications
1. Parameter Item: Specification Description
2. Product Model: YUNY17600 (Multi-Range) / YUNY17250
3. Measurement Range: 0.1~6MPa, 1~60MPa, 1~100MPa, 2~160MPa,
5~250MPa
4. Accuracy: 0.005%
5. Minimum Weight: 0.1MPa / 1MPa / 2MPa / 5MPa (depending on range
model)
6. Working Medium: Diisooctyl sebacate, kinematic viscosity at 20°C
20~25mm²/s, acid value ≤ 0.05mgKOH/g
7. Piston Material: Piston Rod: Tungsten Carbide; Piston Cylinder:
Tungsten Carbide
8. Weight Material: 304 Non-Magnetic Stainless Steel
9. Weight Correction: Supports correction using local gravitational
acceleration
10. Communication Interface: RS485, supports communication protocol
for reading pressure readings
11. Power Supply Voltage: AC (220±10) V, 50Hz
12. Operating Environment: Working Temperature: (20±10)°C; Relative
Humidity: ≤80%
13. Compliance Standards: JJG59-2022 & JJG99-2022
