1. Full-Automatic Piston Pressure Gauge - Applications and Technical Specifications

Used for calibrating piston-type pressure gauges, digital pressure gauges for verification and calibration, and other pressure instruments. Compliant with national verification regulation JJG59-2022.

Section 2: Specific Technical Solution for Piston Pressure Gauge

2.1 Working Conditions

Ambient Temperature: (20±1)℃

(2) Environmental Humidity: Relative humidity not exceeding 80%

(2) Input Voltage: AC 220V, Frequency: 50Hz

2.2 Technical Specifications

Technical Specifications

• Pressure Range: (0~1000) MPa

• Accuracy Grades: 0.005 Grade, 0.01 Grade, 0.02 Grade, 0.05 Grade
• Working Medium: Dodecanedioate and similar
• Piston Material: Tungsten Carbide; Weighing Material: Non-magnetic Stainless Steel
• The pressure output port is a standard M20×1.5 quick connector or custom-made according to customer requirements.

(2) Technical Features

1) Features

The servo system controls the pressure source for automatic pressure increase, with measurement and control achieved through a high-precision, fully automatic piston-type pressure transducer. The provided automatically constant system pressure is suitable for automatic calibration and verification of various pressure gauges.

Automatic pressure system control method allows for continuous variation of system pressure during rise or fall, accurately reflecting the stroke and return error of the inspected gauge.

Piston anti-break rod structure, significantly resolves the issue of piston rod breakage due to operational errors during use (e.g., weights colliding), ensuring users can operate with greater peace of mind.

The oil cup features a rapid oil drain function and allows for regular replacement of the contaminated pressure oil.

The junction box is equipped with a drainage function, allowing for regular removal of debris introduced by the pressure gauge during testing.

Mirror finish weights are wear-resistant, dust and dirt-resistant, and easy to clean, ensuring long-term precision and consistent weight.

Set up a weight rotation monitoring system, providing real-time reports on the weight operation status.

Pressure calculation software with deformation coefficient correction features, configured with local gravity acceleration parameters based on user requirements.

2) Weighing Chip Features

Full automatic loading of integral pressure points within the pressure range, as well as manual loading of any decimal pressure points with nominal accuracy.

① Full automatic loading function for integral pressure point weight quality

Pressure gauge with a pressure rating ≤ 60MPa, featuring a full binary weight configuration. The weight distribution is binary, with parallel addition and subtraction weights, requiring only 6 weights to achieve any integer pressure point up to 60MPa. For pressure gauges with a pressure rating > 60MPa, a combination of binary weight and equal weight configuration is used. This combination of binary and equal weight configuration achieves the maximum possible weight with fewer weights under high mass conditions, for example, a 250MPa pressure gauge requires a total of 9 sets of weights, significantly fewer than the 33 sets required for series weights.

The reduced number of weights achieves a rapid response for adding weights, allowing for an average addition speed of around 2-10 seconds for any weight. Decreasing the number of weights also facilitates the inspection of the weights and piston system. This reduction in weights also effectively minimizes wear on the weights, enhances the precision retention of the weights, and ensures more stable, reliable, and accurate detection data.

② Decimal pressure point weight mass manual intervention configuration function

Set the manual intervention quality loading mode. According to user requirements, manual intervention during the coding process is available to obtain any decimal pressure point within the pressure range with the specified accuracy.

The above configuration of weights provides limitless possibilities for users to generate any standard pressure value.

2.4 Package with Software and Technical Documents

(1) Equipment User Manual

(2) Pressure Calculation Software

(3) Product Compliance Certificate

(4) Factory Inspection Report.