AILEIKE ALKT9603 Pneumatic Calibration Bench Technical White Paper

AILEIKE ALKT9603 Pneumatic Calibration Bench

Technical White Paper

Product Overview and Technical Background

The AILEIKE ALKT9603 Pneumatic Calibration Bench is a precision calibration device designed for both fixed laboratory calibration and mobile on-site testing. Featuring an open-frame design, it offers effortless operation, smooth pressure ramping, excellent sealing performance, and easy maintenance. It can accurately calibrate and verify a wide range of pneumatic instruments, including pressure gauges, pressure transmitters, pressure sensors, and pressure switches, meeting traceability requirements for pneumatic instruments across various scenarios such as industrial production and laboratory testing.

Technical Specifications and Performance Metrics

2.1 Basic Technical Specifications

2.2 Key Performance Features

Switching Valve: The core switching component. Operate under pressure-free conditions; pushing the valve switches it to positive pressure mode, while pulling it switches it to negative pressure mode. Switching under pressure will damage the valve structure and compromise sealing performance.

Pressure-Building Rod: The core component for manual pressure generation. Its mechanical design enables effortless pressurization, rapidly raising pressure to near the calibration value and reducing manual labor.

Fine-Tuning Valve: Used for small-range pressure adjustments to precisely calibrate to the target value. During positive and negative pressure measurements, the direction of fine-tuning must be adjusted in conjunction with the switching valve.

Shut-off Valve: Closes once pressure reaches the target range, locking the current pressure to prevent fluctuations and ensure stable pressure during calibration.

Pressure Relief Valve: Closed during measurement; opened after calibration to release pressure and quickly return it to zero. Must be opened slowly during operation to prevent sudden pressure drops that could damage the instrument.

Filter: Filters impurities and contaminants from the gas flow, preventing pollutants from entering the instrument under test or the equipment, thereby extending the service life of both the equipment and the instrument.

Internal Threaded Quick-Connect Fitting: Enables quick installation and removal of pressure instruments. When paired with an M20x1.5 plug, it seals unused output ports to prevent pressure leakage.

Main Application Areas

The ALK9603 Pneumatic Calibration Bench, with its high precision, stability, and versatility, is widely used in multiple fields:

Metrology and Testing Institutions: Serves as a standard pressure source for the calibration and verification of pressure measuring instruments, ensuring the accuracy and consistency of measurement traceability.

Instrument Manufacturing: Used for product quality inspection and calibration during the manufacturing of pressure instruments to ensure product quality meets standard requirements.

Petrochemical Industry: Used for the calibration and testing of pressure instruments in the petrochemical industry to ensure the safety and efficiency of production processes.

Industrial and Mining Enterprises: Used for the calibration and maintenance of internal pressure measurement and control equipment, ensuring production safety and stable product quality.

Education: Serves as teaching equipment for instruction and training in pressure measurement and calibration techniques, fostering the development of professionals in related fields.

Research Institutes: Provides a precise and controllable pressure environment for scientific experiments, supporting various pressure-related research and experimental work.

Operation and Maintenance Guide

Operating Procedure

Pressure Calibration

First, connect the meter under test to the “Meter Under Test” port and the standard meter to the “Standard” port. Push the switch valve knob in, open the shut-off valve, turn the pressure adjustment knob counterclockwise to release pressure, close the relief valve, and use the hand lever to pressurize to approximately 0.5–4.0 MPa. Then close the shut-off valve and use the pressure adjustment knob to pressurize to the required pressure. To relieve pressure, first open the relief valve, then open the shut-off valve.

Vacuum Calibration

First, connect the meter under test to the test port and the standard gauge to the standard port. Pull the switch valve knob outward, open the shut-off valve, and turn the pressure adjustment knob clockwise to tighten it. Close the relief valve, then use the hand pump to evacuate the system to the required vacuum level. To relieve pressure, first open the relief valve, then open the shut-off valve.

Precautions

1. This equipment should be used within the rated pressure range whenever possible; over-range use is prohibited.

2. Pressure/vacuum conversion must be performed under pressure-free conditions.

3. The calibration bench should be placed on a stable workbench and avoided in environments with corrosive gases or dust particles.

4. If not in use for an extended period, store the equipment in a dry environment free of corrosive gases.

5. Apply even force when operating the lever to pressurize; do not use excessive force when opening or closing valves.

6. Regularly clean impurities from the filter to prevent premature wear of the equipment.

Structure and Function

Conclusion

The ALKT9603 Pneumatic Calibration Bench features an open-frame design that not only ensures convenient and effortless operation with smooth, controllable pressure ramping but also offers excellent sealing performance and simple maintenance. Its calibration range covers various pneumatic instruments, including pressure gauges, pressure transmitters, pressure sensors, and pressure switches. It can accurately perform calibration and verification tasks, fully meeting the traceability requirements for pneumatic instruments across multiple scenarios, such as industrial production and laboratory testing.