ASTM D4052 Digital Density Meter U-tube oscillation method
Brand KN
Product origin Dalian,China
Delivery time deliver as soon as received payment
Supply capacity 30 sets one month
U-tube oscillating density meter, electronic liquid density meter is based on the principle of different oscillating frequency when the double U-tube is filled with different media. After pumping the sample into the resonance tube sensor, the measurement data is processed by the single chip microcomputer, it features fast , direct, and has high sensitivity. It consists of a dual tuning fork density sensor, vibrating tube circuit, temperature measuring circuit, CPU, display, constant temperature
KN-4052M Electronic liquid density meter [U-tube oscillation method]
Overview
KN-4052M Electronic liquid density meter [U-tube oscillation method] conforms to ASTM D4052 Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter. Density is a fundamental physical property that can be used in conjunction with other properties to characterize both the light and heavy fractions of petroleum and petroleum products.
Features
1. Measuring Unit (Core Component)
U-shaped Oscillation Tube: Made of high-temperature resistant borosilicate glass with a wall thickness of 0.8–1.2 mm. Features a dead-angle-free design for easy cleaning and sample replacement.
Electromagnetic Excitation Module: Utilizes a high-frequency electromagnetic coil with stable excitation intensity to ensure consistent resonance of the U-shaped tube.
2. Control Unit
Adopts an embedded microprocessor with a main frequency ≥1 GHz. Capable of data acquisition, algorithmic computation, parameter control, and communication. Supports multi-parameter settings (measurement mode, constant temperature, calibration parameters, etc.) with a response speed ≤10 ms to ensure high measurement efficiency.
3. Temperature Control Unit (Thermostat Unit)
Employs Peltier thermostat technology combined with a high-precision temperature sensor (resolution 0.01°C). Temperature control range: 5–45°C, with temperature stability of ±0.02°C. Effectively eliminates the influence of temperature on liquid density and U-tube deformation, ensuring measurement repeatability.
4. Sampling Unit
Equipped with a micro peristaltic pump featuring adjustable flow rate. Supports automatic sample loading, ejection, and cleaning to avoid cross-contamination. The sample inlet is made of corrosion-resistant material (PTFE), suitable for various samples including acids, alkalis, and organic solvents.
5. Data Processing and Display Unit
Data Processing: Built-in density calculation algorithm and temperature compensation algorithm. Automatically converts to relative density, concentration (alcohol content, sugar content, API degree, etc.). Supports data storage (≥10,000 sets).
Display Interface: 8-inch color touchscreen clearly displaying density value, constant temperature, measurement time, calibration status, etc. Supports Chinese/English language switching for convenient operation.
6. Communication Interfaces
Equipped with USB, RS232, and Ethernet interfaces. Supports data export (CSV format), remote PC control, and integration with laboratory LIMS systems. Meets the data upload requirements for CPA pattern evaluation and user data management needs.
Technical parameters
Model No. | KN-4052M | KN-4052N |
Measuring Range (g/cm3) | 0.0001-3.0000 | 0.001-3.000 |
Resolution (g/cm3) | 0.0001 | 0.001 |
Accuracy (g/cm3) | ±0.0003 | ±0.001 |
Repeatability (g/cm3) | ±0.0002 | ±0.001 |
Temperature Resolution | 0.01℃ | |
Temperature Control Range | 5℃～45℃ | 5℃～45℃ |
Temperature Control Stability | ±0.02℃ | ±0.02℃ |
Temperature Control Accuracy | ±0.1℃ | ±0.03℃ |
Measured Values | Density, Relative Density, API, Baume, Brix, Plato, Alcohol % vol | |
Drying Function | Built-in drying air pump; dries the sample tube after each cleaning | |
Temperature Control Method | Peltier temperature control | |
Measurement Modes | Precision measurement / Real-time measurement | |
Customizable Method | Yes | |
User Access Control | Four-level authority management | |
Electronic Signature | Yes | |
Audit Trail | Yes | |
Sample Injection Observation | High-definition camera with video observation | |
Sample Injection Method | Automatic (manual compatible); optional sample injectors available | |
Calibration Method | Dry air / distilled water | |
Data Storage | 32 GB + unlimited expansion via USB | |
Display | 8-inch color LCD touchscreen, Android OS | |
Language | Chinese or English | |
Communication Interfaces | 2 x USB, 1 x RJ-45, 1 x HDMI (external display compatible), 1 x SD card | |
