Performing a pressure decay test on water filters requires a high level of precision to ensure the integrity of the filtration media and the housing seals. This specialized process involves monitoring minute changes in pressure over a specific time interval to detect even the smallest leaks that could compromise product quality.
- Testing focuses on detecting pressure drops within a 3 bar vented gauge range.
- Accuracy requirements demand a 0.1% full scale threshold.
- The system utilizes a dedicated leakage mode to automatically calculate and display pressure loss.
- Integrated data logging provides high-resolution documentation of decay curves for quality control verification.
The measurement of pressure decay in water filtration systems is a critical quality control step that ensures the structural integrity of the filter housing and the effectiveness of the internal membranes. In this specific application, the testing process involves pressuring the filter assembly with positive pressure up to 3 bar vented gauge. Using a sensor referenced to local atmospheric pressure allows the system to remain unaffected by barometric fluctuations, which could otherwise be mistaken for a pressure leak during a sensitive decay cycle.
To meet these demanding requirements, a precision digital gauge from the DL01 series was implemented, offering a modular sensor concept and a dedicated firmware set specifically for leak detection. Unlike standard instrumentation, this device features a specialized leakage mode that allows the operator to set a predefined test duration. Once the cycle is initiated, the instrument automatically monitors the pressure decrease and calculates the total drop, presenting the final result directly on a high-resolution graphic display. This functionality eliminates the need for manual calculations or external timers, significantly streamlining the workflow for the technician and reducing the potential for human error during data interpretation.
The technical solution is further enhanced by an integrated data logger capable of recording pressure and temperature values at intervals ranging from one second to several days. By utilizing a communication interface with a USB converter, the system allows for the seamless transfer of recorded data to a PC for detailed analysis. This capability is particularly beneficial for engineering consultants and process engineers who need to analyze pressure decay curves to understand the rate of leakage or to provide documented proof of compliance with industry standards. The high accuracy of 0.1% full scale ensures that even the most marginal failures are identified, providing a robust solution for maintaining the rigorous safety and performance standards required in water treatment and filtration applications.
DL 01 Precision Digital Gauge for Leak Testing
- Part Number: DL01-A21 / M0P-3000-0-1-N40-1-000 / ZUSBCD01
- Display Unit: DL01-A21 Standard Graphic Display
- Pressure Range 1 : 0 to 4 bar
- Pressure Datum: Vented Gauge
- Accuracy: 0.1% FSO
- Process Connection: 1/4 NPT male
- Seal Material: FKM
- Special Version: Standard
- Included Accessory: ZUSBCD01 USB interface converter and software