AWD-18A Density Tester: Precision Oil Density Testing Solution for Petroleum Products
1.Introduction to Advanced Density Measurement Technology
In the petroleum and petrochemical industries, accurate density measurement is fundamental to quality control, product classification, and regulatory compliance. The AWD-18A Density Tester represents a state-of-the-art solution specifically engineered for precise oil density test procedures. Designed and manufactured in strict accordance with ASTM D1298 standards, this sophisticated instrument delivers reliable, repeatable results for laboratories and refineries worldwide.
Density measurement serves as a critical parameter in petroleum product characterization, directly influencing pricing, taxation, and product specifications. The AWD-18A Density Tester addresses these demanding requirements through innovative engineering and comprehensive temperature control capabilities, ensuring that every Density Test meets international standards with exceptional accuracy.
2.Compliance with ASTM D1298 Standards
The ASTM D1298 standard establishes the definitive methodology for determining the density and relative density of crude petroleum and liquid petroleum products using the hydrometer method. This internationally recognized standard requires precise temperature control and stable measurement conditions—requirements that the AWD-18A Density Tester fulfills through its advanced thermostatic bath system.
By strictly adhering to ASTM D1298 protocols, the Density Tester ensures that measurement results are globally accepted and legally defensible. The instrument's design incorporates all essential elements specified in ASTM D1298, including standardized hydrometer specifications, controlled temperature environments, and proper sample handling procedures. When conducting an oil density test using this equipment, laboratories can confidently certify results for trade documentation, regulatory submissions, and quality assurance programs.
3.Comprehensive System Architecture
The AWD-18A Density Tester features a modular architecture comprising four integrated subsystems: the constant temperature bath, refrigeration unit, circulation system, and electronic control module. This integrated approach distinguishes the Density Test equipment from conventional single-function devices, offering enhanced versatility and operational efficiency.
Constant Temperature Bath Design
At the core of the Density Tester lies a specialized constant temperature bath constructed from premium white steel material. Unlike conventional glass vessels, this proprietary bath design offers superior optical transparency combined with exceptional oxidation resistance—critical factors for maintaining measurement integrity during extended oil density test sequences. The bath accommodates two 500ml test cylinders simultaneously, enabling parallel sample processing and improved laboratory throughput.
The cylindrical configuration optimizes thermal uniformity throughout the sample volume, eliminating temperature gradients that could compromise ASTM D1298 compliance. Internal positioning guides ensure proper hydrometer alignment, while the transparent construction facilitates direct visual observation during the Density Test procedure.
Advanced Refrigeration Technology
Modern petroleum analysis often requires testing at sub-ambient temperatures, particularly for high-viscosity products or cold climate specifications. The AWD-18A Density Tester incorporates a high-performance refrigeration system featuring imported compressor technology renowned for extended service life and minimal acoustic emission. This cooling capability expands the operational range from conventional room temperature Density Test applications down to 5°C, supporting comprehensive product characterization across diverse climatic conditions.
The refrigeration subsystem integrates seamlessly with the main control architecture, enabling automated temperature programming and rapid stabilization. For laboratories conducting oil density test protocols on wax-bearing crude oils or winter-grade fuels, this cooling functionality proves indispensable for accurate ASTM D1298 determinations.
Precision Circulation and Thermal Control
Thermal uniformity represents a critical success factor in ASTM D1298 testing. The Density Tester employs a magnetic circulation pump specifically selected for compact dimensions, lightweight construction, and superior hydraulic performance. With high flow velocity and elevated discharge head characteristics, this circulation system eliminates thermal stratification within the bath medium, maintaining temperature uniformity within ±0.2°C throughout the entire Density Test duration.
The agitation mechanism operates continuously during testing, ensuring that heat transfer remains consistent across all sample positions. This technical sophistication directly supports the reproducibility requirements specified in ASTM D1298, enabling laboratories to achieve inter-test variation well within acceptable tolerance limits.
4.Electronic Control and User Interface
The electronic control subsystem consolidates management of cooling, circulation, heating, and illumination functions within a unified interface. This integration simplifies operation while enhancing system reliability for routine oil density test workflows.
Digital Temperature Controller Specifications
The AWD-18A Density Tester features an intelligent digital temperature controller with advanced PID (Proportional-Integral-Derivative) algorithms. Key technical capabilities include:
Temperature Control Range: 5°C to 80°C with continuous adjustability
Control Accuracy: ±0.2°C precision maintained throughout the Density Test cycle
Self-Tuning Functionality: Automatic PID parameter optimization for rapid stabilization or overtemperature prevention
Dual Operating Modes: Selectable fast warm-up protocols or conservative temperature ramping
The controller interface provides clear digital indication of actual and setpoint temperatures, with dedicated alarm functions for sensor disconnection or out-of-range conditions. For ASTM D1298 applications requiring specific test temperatures—commonly 15°C or 20°C for reference density determinations—the system achieves setpoint stability within minutes, minimizing sample preparation time.
Operational Safety and Convenience Features
Illumination integration within the control box ensures optimal visibility during hydrometer readings, a practical consideration for accurate Density Test execution. The system incorporates comprehensive electrical protection, including ground fault protection and overcurrent safeguarding, ensuring operator safety during extended testing sessions.
5.Technical Specifications and Performance Parameters
| Parameter | Specification |
| Density Tester Model | AWD-18A |
| Standard Compliance | ASTM D1298 |
| Working Power Supply | AC220V ±10%, 50Hz (customizable for regional requirements) |
| Input Power | <1000W (operational), 1850W (maximum heating) |
| Temperature Range | 5°C to 100°C |
| Control Precision | ±0.2°C |
| Test Capacity | 2 samples simultaneously |
| Heating Power | 1800W |
| Bath Construction | White steel, high transparency, anti-oxidation treated |
| Circulation | Magnetic pump, high flow rate |
| Refrigeration | Imported compressor, low noise |
These specifications position the AWD-18A Density Tester as a versatile instrument suitable for diverse oil density test applications, from routine quality control to research-grade Density Test investigations.
Contact Information
Dalian All World Import & Export Co., Ltd.
Address: No.4-1 RongShen Industrial Park, No.2 XueZi Street, QiXian Road, High Technology Zone, Dalian, LiaoNing Province, China
Email: sales@awdsy.com.cn | andydiao@hotmail.com | diaoshouyuan@gmail.com
Tel/Fax: (+86) 0411-84203824
Mobile/WhatsApp: (+86) 139 4263 2309
Website: www.awdsy.com.cn
