Absolute pressure gauge FKQ-200A

digitalfor gascalibration

Product Overview
YUNYI absolute pressure piston pressure gauge is a high-precision pressure measurement instrument designed for laboratories, metrology institutions, and industrial applications. It accurately measures and calibrates absolute pressure, gauge pressure, and vacuum pressure. Featuring an advanced piston system and intelligent control technology, this device ensures long-term stability and reliability, making it an ideal reference standard for pressure value transfer.

Performance Features

• High Accuracy and Stability: Accuracy class up to 0.005, measurement uncertainty better than ±0.005%. Ceramic piston rod and tungsten carbide piston cylinder ensure wear resistance, corrosion resistance, low thermal expansion coefficient, and exceptional long-term stability.
• Multifunctionality and Flexibility: Supports absolute pressure, gauge pressure, and vacuum pressure measurement modes for versatile applications. Equipped with multiple piston systems covering a wide range from 5 kPa to 6 MPa, eliminating frequent equipment changes.
• Intelligence and Convenience: Integrated electric control for piston rotation eliminates manual intervention inside the vacuum chamber. Features a digital display module for real-time monitoring of pressure, temperature, rotational speed, and other parameters.
• Environmental Adaptability: Utilizes gas media (nitrogen/clean air) to eliminate liquid viscosity effects and enhance sensitivity; incorporates a multi-stage filtration system to effectively prevent dust contamination of the piston system.
• Optimized Structural Design: Features a lightweight base for easy transport; employs quick-seal connectors and a vacuum chamber design to significantly reduce leakage risks.

Typical Applications

• Verification or calibration of absolute pressure digital pressure gauges, absolute pressure precision pressure gauges, pressure transmitters, pressure sensors, and other instruments.
• Serves as a reference device for pressure value transfer, supporting national metrology institutions, third-party testing laboratories, and high-end manufacturing sectors.
• Suitable for demanding absolute pressure measurement scenarios in aerospace, meteorology, scientific research, and other fields.

Technical Specifications
Product Model: FKQ-200A / FKQ-400A
Measurement Range: 5 kPa to 200 kPa (FKQ-200A)
6 kPa to 400 kPa (FKQ-400A)
Accuracy Class: Class 0.005, Class 0.01, Class 0.02, Class 0.05
Working Medium: High-purity nitrogen or clean air
Piston Materials:
Piston Rod: Ceramic
Piston Cylinder: Tungsten carbide
Weight Configuration: Non-magnetic stainless steel, supports gravity acceleration correction (adjustable per location)
Environmental Requirements:
Temperature: 20±2°C
Humidity: 40% to 80%
Power Supply: AC 220V
Vacuum Level: Below 10 Pa achievable within vacuum chamber
Output Interface: M20×1.5 standard quick-connect fitting
Compliance Standard: JJG 1086-2013 “Verification Regulations for Gas Piston Pressure Gauges”

Characteristics / Technical Specifications

• Brand: YUNYI
• Product Model: FKQ-200A / FKQ-400A
• Measurement Range: 5 kPa to 200 kPa (FKQ-200A), 6 kPa to 400 kPa (FKQ-400A)
• Accuracy Class: 0.005, 0.01, 0.02, 0.05
• Working Medium: High-purity nitrogen or clean air
• Piston Rod Material: Ceramic
• Piston Cylinder Material: Tungsten carbide
• Weight Configuration: Non-magnetic stainless steel, gravity acceleration correction supported
• Environmental Requirements: Temperature 20±2°C, Humidity 40% to 80%
• Power Supply: AC 220V
• Vacuum Level: Below 10 Pa
• Output Interface: M20×1.5 standard quick-connect fitting
• Compliance Standard: JJG 1086-2013