Automatic Oil Acidity Tester

Automatic Oil Acidity Tester

MT-AD305

The Automatic Oil Acidity Tester is designed for accurate determination of the acid number of petroleum products using the neutralization titration method. in accordance with ASTM D974, GB 264 standard.

Get a quote

Introduction

Acid number is an important indicator of oil oxidation, contamination, and degradation. Monitoring the acid value helps determine the service condition and remaining life of lubricants, insulating oils, and fuel oils.

This Automatic Oil Acidity Tester performs the entire testing process automatically, including reagent addition, titration, stirring, endpoint detection, result calculation, data storage, and printing.

The system is widely used for the analysis of transformer oil, turbine oil, fire-resistant oil, diesel fuel, gasoline, and other petroleum products, providing reliable data for oil quality monitoring and maintenance decision-making.

Typical Applications

The Automatic Oil Acid Value Tester is widely used for acid number determination of petroleum products such as:

  • Transformer insulating oil
  • Turbine lubricating oil
  • Fire-resistant hydraulic oil
  • Diesel fuel and gasoline
  • Industrial lubricants

Typical industries include:

  • Power generation and electrical utilities
  • Petroleum refining laboratories
  • Chemical manufacturing plants
  • Oil analysis laboratories
  • Research institutions and universities

Key Features

1. Fully Automated Neutralization Titration System

The Automatic Oil Acid Value Tester performs the entire titration workflow automatically, including reagent addition, stirring, titration control, endpoint detection, and result calculation. This automation significantly improves testing efficiency and eliminates manual operation errors.

2. High-Precision Photoelectric Endpoint Detection

The system uses advanced photoelectric detection technology to accurately identify the titration endpoint, ensuring reliable acid number measurement even for low-acid samples.

3. Six-Position Automatic Sample Carousel

The instrument is equipped with six sample cups with automatic switching capability, enabling parallel testing and comparison of multiple samples. This improves laboratory throughput and supports batch analysis.

4. Automatic Pipeline Cleaning System

An integrated automatic cleaning function prevents reagent crystallization and pipeline blockage, reducing maintenance requirements and extending system service life.

5. Large 10-Inch Touchscreen Interface

The instrument features a 10-inch color touchscreen with bilingual interface, displaying real-time testing parameters such as titration progress, reagent consumption, and calculated acid value.

6. Advanced Data Connectivity

The instrument supports: RS232 interface for optional analytical balance connection, allowing automatic sample weight input and automatic acid number calculation. USB interface for data export or PC connection

7. Durable Laboratory Construction

The instrument housing is made from high-quality cold-rolled steel with electrostatic coating, providing excellent corrosion resistance and easy cleaning.

Technical Specifications

Name

MT-AD305 Automatic Oil Acid Value Tester

Display

10-inch color touchscreen

Repeatability

≤0.3%

Measurement Range

0.001 – 5.00 mgKOH/g

Resolution

0.001 mgKOH/g

Accuracy

±0.2% (0.001–0.100 mgKOH/g)
±0.3% (0.100–0.500 mgKOH/g)
±0.5% (0.500–1.000 mgKOH/g)

Printer

Low-Power High-Speed Thermal Printer (56 mm paper width)

Detection Method

Photoelectric Endpoint Detection

Titration Method

Neutralization Titration

Self-Diagnosis

Automatic Instrument Fault Detection

Additional Function

Automatic Pipeline Cleaning

Working Environment

10–45°C, 30–80% RH

Cooling Method

Forced air cooling

Dimensions (W × D × H)

440 × 300 × 220 mm (L × W × H)

Power Supply

AC 220 V ±10%, 50 Hz ±2.5 Hz

Weight

8.5 kg

Standards Compliance

This Automatic Oil Acidity Tester is designed in accordance with:

  • GB/T 264 – Test Method for Acid Number of Petroleum Products
  • GB 7599 – Determination of Acid Number of In-Service Transformer Oil and Turbine Oil
  • GB/T 7304 – Test Method for Acid Number of Petroleum Products and Lubricants
  • ASTM D974 – Acid Number of Petroleum Products by Color Indicator Titration

These standards are widely used for determining the Total Acid Number (TAN) of petroleum products.

Why Choose Our Automatic Oil Acidity Tester

Accurate Oil Condition Monitoring

Precise acid number measurement helps monitor oxidation and degradation of petroleum products during service.

Fully Automated Operation

Automatic titration workflow reduces manual operation and improves testing repeatability.

Efficient Multi-Sample Analysis

Six-position sample carousel enables parallel testing and improves laboratory productivity.

Intelligent Data Management

USB and RS232 interfaces allow convenient data export and integration with laboratory systems.

Low Maintenance Operation

Automatic cleaning system prevents pipeline blockage and ensures stable long-term operation.

Reliable Industrial Design

Robust corrosion-resistant construction ensures stable performance in demanding laboratory environments.

FAQ – Automatic Oil Acidity Tester