I. Product Introduction

The HSY-28552A fully automatic acid value tester (extraction method) adopts a 32-bit MCU and a 7-inch large-screen LCD display, offering advantages such as stability, reliability, ease of operation, and simple maintenance. With its high-precision optoelectronic integrated design, it can accurately detect the acid value of petroleum products such as transformer oil, turbine oil, fire-resistant oil, diesel, and gasoline. It is widely applicable in power, petroleum, chemical, commodity inspection, and scientific research sectors.

II. Main Functions and Features

1. 7-inch color touch screen with a resolution of 800×480, providing a simple and user-friendly human-machine interaction.

2. Utilizes a 32-bit microprocessor as the main control core, featuring a new generation of intelligent operating system.

3. Employs imported RGB optical sensors to precisely detect color changes of the indicator.

4. Internal pipelines use imported fluororubber tubes, which are long-lasting and resistant to acids, alkalis, and oils.
5. Six-cup rotary design allows users to select the number of test samples as needed, with samples freely grouped for testing.

6.  Equipped with data query function for easy searching and printing, capable of storing records for 180 samples.

III. Technical Specifications

1. Applicable standards: GB/T28552 "Method for Determination of Acid Value in Transformer Oil and Turbine Oil (BTB Method)"

GB/T 264 "Method for Determination of Acid Value in Petroleum Products"

GB/T 7599 "Method for Determination of Acid Value in Transformer Oil and Turbine Oil in Service (BTB Method)"

2. Measurement range: 0.001~2.0 mgKOH/g

3. Resolution: 0.0001mg(KOH)/g

4. Repeatability: Better than ±2%; ±0.001mg(KOH)/g (typical value)

5. Stirring speed: 10 adjustable levels

6. Number of test holes: 6 test holes + 1 waste liquid hole

7. Printer: 58mm mini thermal printer

8. Rated power: 50W

9. Dimensions: 450*340*280 (mm)

10. Weight:  12kg

IV. Operating Conditions

1. Ambient temperature: 5℃～40℃

2. Relative humidity: <80%

3. Input power: AC220V±10V  50Hz