Automated Air Release Value analyzer
Air Release Properties of Petroleum Oils K88539
Methods : ASTM D3427; IP 313; ISO 9120; DIN 51381; NF E 48-614; NF T 60-149; BS 2000 Part 313
Koehler Air Release Value Analyzer is designed to determine automatically the air release properties of hydrocarbon-based oils following ASTM, IP, and other methods.
- Integrated Touch Screen Control Panel
- Automatic Lift System that moves test vessel from air source to balance sinker
- Automatic calculation of final sample density for determination of air release value.
- Integrated Circulation Bath with water level indicator
- Integrated Balance
- Secure the Clamp Mechanism of the air tube
- Automated Jacketed Test Vessel draining
- Safety Shield
- LIMS Compatibility
The lubricating efficiency of Lubricants and Oils can be shortened by an excess amount of entrained air and can cause disruptions in operating equipment.
The time taken for hydraulic fluids and lubricating oils to release entrained air and gases can be determined by the Air Release Value test.
The Koehler Automated Air Release Value Analyzer consists of a test vessel and airflow control equipment for delivering heated air at the specified flow rate to a lubricating oil sample maintained at a constant temperature. The Integrated Touch Screen Control Panel guides the user from start to finish of the test operation and provides density calculation and timing operation for measuring the air release value of the test sample. Drying oven available as an additional accessory for warming test oil at temperatures of up to 100°C; Integrated Circulating Bath and air bath for sinker; compressed air heater, over-temperature and over-pressure protection circuitry. Automatically measures the time for air release.
The ability of a turbine, hydraulic, or lubricating oil to separate entrained air is a key performance characteristic in applications where agitation causes a dispersion of air bubbles in the oil. To determine air release properties, the sample is heated to a specified test temperature and blown with compressed air. After the airflow is stopped, the time required for the air entrained in the oil to reduce in volume to 0.2% is the air bubble separation time.
Supplied with
- Sinkers, 5mL and 10mL
- Integrated Balance
- Integrated Circulator
- Air Bath for Sinker
- Tubing and Fittings
- Platinum Wire
- Jacketed Test Vessel
Technical Details for Koehler Automatic Air Release Value Apparatus
Feature | Specification |
| Model | K88539 (220-240V, 50/60Hz) |
| Test Method | ASTM D3427; IP 313; ISO 9120; DIN 51381; NF E 48-614; NF T 60-149; BS 2000 Part 313 |
| Sample Temperature Range | Ambient to 75°C |
| Sample Temperature Stability | ±0.1°C |
| Air Temperature Stability | ±0.2°C |
| Density Accuracy | ±0.001 g/mL |
| Dimensions (LxWxH) | 61 x 58.4 x 86.4 cm |
| Weight | 53 kg |
| Power Supply | 220-240V AC, 50/60Hz |
| Air Pressure Requirement | 80-115 psi, oil-free and filtered |
| Water Bath | Integrated, supports external chiller connection |
| Control System | Touchscreen interface with USB and Ethernet connectivity |
| Safety Features | Over-temperature and over-power protection |
| Glassware Requirements | Includes jacketed test vessel and temperature probe |
| Optional Accessories | Laboratory convection oven for sample drying |
| Compliance | WEEE directive, Rohs compliant, supports ISO 9120, IP 313, DIN 51381, and NF E 48-614 standards |
| Software Features | Data acquisition, calibration, and export via LIMS |
| Results Output | Real-time density vs. time graph, detailed summary reports |
Software for Koehler Automatic Air Release Value Apparatus
Air Release software is tailored to meet the demanding needs of high-precision laboratories, ensuring reliable, repeatable results while simplifying user operations.
Feature | Description |
Control Interface | Touchscreen display with an intuitive and user-friendly navigation system for streamlined operations. |
Data Acquisition | Real-time recording of test parameters, including sample density, air pressure, and temperature. |
Results Analysis | Provides detailed summaries of test results, including graphs of density vs. time and tabular data output. |
Calibration | Built-in calibration system with offset settings for temperature (water and air) and density measurements. |
Settings Customization | Configure temperature units, sample warming times, glassware preheat times, and sinker size. |
Export Options | Results can be exported via USB or Ethernet for integration with Laboratory Information Management Systems (LIMS). |
Graphical Visualization | Displays real-time and historical trends in a graphical format for quick diagnostics and analysis. |
Data Storage | Secure storage of test results for future reference and statistical analysis. |
Multi-User Access | Allows operator names and IDs to be logged for better traceability in test operations. |
Maintenance Support | Displays real-time instrument performance metrics, including bath temperature, air pressure, and tank levels. |
System Updates | USB or Ethernet-based updates for adding new features and ensuring compliance with evolving standards. |
Security and Logs | Provides logging of all user interactions and test conditions to maintain data integrity. |
Applications of the Koehler Automatic Air Release Value Apparatus
- Turbine Oil Testing: Ensures turbine oils release entrained air to prevent cavitation and maintain efficiency.
- Hydraulic Oil Analysis: Evaluates hydraulic oils to avoid pump damage and ensure system reliability.
- Lubricating Oil Quality Control: Assesses lubricating oils for foam prevention and optimal machinery performance.
- Oil Formulation Development: Supports R&D in creating oils with enhanced air release characteristics.
- Predictive Maintenance: Identifies issues in fluids for proactive equipment condition monitoring.
- Standard Compliance Testing: Ensures oils meet ASTM D3427, ISO 9120, and IP 313 standards.
- Industrial Process Fluids: Tests fluids to reduce operational disruptions caused by entrained air.
- Aviation and Marine Industries: Evaluates oils for turbines and engines in high-agitation environments.
- Automotive Fluids Testing: Tests transmission and hydraulic fluids under real-world conditions.
- Additive Performance Validation: Verifies additives designed to enhance air release properties.




