Automatic Density Meter LBDM-T2013

Introduction

Automatic Density Meter features temperature control stability of ± 0.02°C for accurate density measurements through precise thermal management. It includes an automatic sampling mode, improving the reliability and efficiency of the measurement process. The system has a low sample volume requirement, ensuring precise measurements while minimizing the use of sample materials. Our automatic density meter has a high-precision detection technology, providing accurate density readings for complex and sensitive liquid samples.

This density meter is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Automatic Density Meter determines liquid density with high accuracy and minimal user interaction. It plays a key role in pharmaceutical, chemical industry, petroleum and automotive industries for purity analysis and quality control.

Specifications

Measuring Range	0.001 to 3g /cm3
Density Resolution	± 0.001 g /cm3
Repeatability	± 0.0005 g /cm3
Accuracy	± 0.0008 g /cm3
Test Range	0 to 3g /cm3
Injection Method	Fully Automatic
Temperature Control Mode	Peltier control temperature
Temperature Control Range	5℃ to 45℃
Temperature Control Stability	± 0.02°C
Video Function	Yes
Display Screen	10.4 color touch screen
Data Storage	64 GB
Output Method	Standard: RS232. RJ 45, SD card, U disk, can be customized
Power Supply	110 to 230 V 50 Hz / 60 Hz
Dimensions (L× W× H)	480mm × 320mm × 200mm
Weight	8 kg

Features

Advanced Video Camera Technology 

Stainless Steel Joint 

Built-in Drying Air Pump

 Fast Measurement Speed

High Data Storage

FAQs

1. How does oscillating U tube technology enable high-precision density measurements in automatic density meter ?

Automatic density meter use an oscillating U shaped tube crafted from glass, metal, or alloy. The device excites the tube to vibrate at its natural resonance, and when the sample fills the tube, the added mass decreases the oscillation frequency. Because only the liquid between the fixed nodes vibrates, the volume is constant, reducing errors. Modern meters enhance accuracy by using pulsed or dual-mode excitation and compensation algorithms that correct for tube aging, non-linearity, and temperature drift.

2. How is viscosity interference automatically corrected in automatic density meter ?

It supplies premium automatic density meter .Thick or viscous fluids dampen the U tube's oscillation, which can lead to a falsely high density reading. Advanced meters measure this damping in both the fundamental resonance and first harmonic, then apply calibration curves to correct the effect. For instance, Anton Paar devices now use a pulsed excitation method that improves viscosity handling compared to traditional forced oscillation systems. As a result, viscosity-induced errors are reduced to below 0.001 g/cm³ even in samples like olive oil or concentrated glycerol, ensuring accurate measurements across a wide viscosity range.

3. How do these meters control and compensate for temperature changes in ?

It supplies premium automatic density meter . Density is highly temperature-dependent so automatic density meters integrate Peltier or thermostatically-controlled modules to maintain sample temperature within ±0.02?°C. They monitor the tube’s temperature continuously and adjust heating or cooling as needed during the measurement. After stabilization, software corrections standardize the result to a reference temperature (e.g., 20?°C). Units with pulse excitation also include rapid heating/cooling features for faster turnaround while maintaining thermal accuracy.

4. How is automated bubble detection implemented to maintain measurement integrity in ?

It supplies premium automatic density meter . Air bubbles as small as 1mm can distort density readings by 0.00005g/cm³. To prevent this, advanced meters incorporate high-resolution cameras aimed at the U tube to detect bubbles in real time. When bubbles are found, the instrument automatically pauses measurement, warns the operator, and only proceeds once the tube is clear. Brands like Anton Paar and Rudolph offer features like to ensure clean liquid fills-even for dark or viscous samples where visual inspection is difficult.

5. What calibration routines ensure regulatory compliance and traceability in automatic density meter ?

Calibration starts with measuring at least two certified reference fluids, typically air and degassed water, to establish the constants A and B as per standards like 15212 1 or D7777. Routine verification such as daily checks with pure water at 20 °C—monitors drift within tight tolerances (e.g, ± 0.0001 g/cm³). Many meters include audit trails, timestamps, electronic signatures, and secure data storage to meet /cGMP and 21 Part 11 requirements. Recalibration is typically scheduled annually or triggered by notice of drift, ensuring full traceability and compliance with regulatory standards.