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Labmen instrument Technology Limited
9th floor, Block 3, District D, Liancheng Walking Street, 
Jianshe Road, Yuetang, Xiangtan, Hunan, China
Tel: 86-731-52638888
Fax: 86-731-52638889
Skype: lormanled
wechat: +86 13973220437
whatsapp:  +86 13973220437

LDY1500H Wet laser particle size analyzer

Technical standard: GB/T 19077-2016/ISO 13320:2009


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Product introduction:

Labmen instrument technology limited regards "to create the most stable laser particle size instrument" as its own responsibility, and takes the technology to create a brand, the quality of the market, the reputation to win the world as the guideline, and strive to create an ultra-stable, cost-effective laser particle size instrument.

LDY1500H is the latest product developed by Labmen instrument technology limited. It is not a simple upgrade of LDY1500. It has won the praise of customers since its listing. LDY1500H is a wet automatic laser particle size analyzer, which adopts the most advanced Mie scattering principle and concentrated light Fourier transform optical path. The high-density probe and the full-scale seamless connection test method ensure the accuracy and repeatability of the test results.


Main performance:

Advanced optical path design: LDY1500H adopts concentrated light Fourier transform test technology to ensure the maximum range at the shortest focal length and effectively improve the resolution of the instrument. The unique high-density detection unit allows the LDY1500H to have superior small particle testing capability. The density detection unit provides the LDY1500H with superior full-scale seamless testing capabilities.

Fully sealed fiber-optic semiconductor laser: LDY1500H uses a highly stable, long-life fully sealed fiber-optic semiconductor laser. The excellent stability makes the LDY1500H have superior test repeatability. (optional Helium laser)

Laser power monitoring and automatic adjustment: The exclusive use of constant power laser, real-time detection of laser power and automatic adjustment function, effectively avoiding the problem of laser power attenuation caused by long-term use. At the same time, the constant current and constant voltage high-filter laser power supply is used to effectively extend the life of the laser, and the normal use reaches more than 30,000 hours.

Fully automatic test: Really automatic test, all you have to do is put the sample, no interference data, no need to manually select the data, the instrument has SOP self-editing function, according to different sample-specific editing SOP operation flow.

Double injection system: the world's first dual wet cycle test system, the minimum 10 ml can be cycled test, saving more valuable samples than the non-circular micro sample cell test of other manufacturers, the test data is more accurate and more stable (optional).

Pipe self-cleaning system: the world's first self-cleaning system for particle size analyzer. The instrument can not only clean the pipe automatically, but also automatically add various cleaning agents to keep the instrument clean for a long time (optional).

Sample window coating process: The sample window is coated with a 650 nm laser antireflection coating on the surface, which completely eliminates the surface reflection of the sample window and removes the stray light interference test result more accurately.

96-channel simultaneous acquisition of the motherboard: Now the manufacturer claims that its motherboard is thousands of scans is too low-level, our company's newly developed 96-channel simultaneous acquisition motherboard instantaneously collects all channel data, this speed is not comparable to ordinary motherboard thousands of times (optional).

Ultrasonic anti-dry function: After painstaking research and development, LDY1500H can realize ultrasonic anti-dry function to avoid damage to ultrasound in the absence of water.

Adjustable ultrasonic power: In order to meet the dispersion requirements of different samples, LDY1500H realizes adjustable ultrasonic power of 0 to 20 mW.

Dustproof and shockproof design: The whole instrument has been sealed and designed to greatly improve the service life of internal components. The unique anti-vibration structure can effectively avoid the interference of external vibration to the instrument, and make the test result more stable and reliable.

Strong anti-corrosion design (optional): It can be equipped with acid, alkali and oil resistant (including all solvent oil) and organic solvent (such as acetone, phenol, n-hexane and other organic solvents) according to customers' actual needs.

Automatic proofreading of optical path: the exclusive combination of mechanical center and optical center, the optical path is automatically adjusted and positioned more accurately, reaching the micron level; at the same time, the optical path adjustment speed can be adjusted quickly and quickly in 15 seconds. The self-developed automatic alignment system consists of stepper motor, precision guide rail, precision controller and software system. The minimum step distance is 0.2 microns, ensuring that the focus of the laser beam always passes through the center point of the detector, improving the accuracy of the test results and testing. Repeatability. The automatic alignment system is standard on all Labman laser particle size analyzers.

Unique micro-circulation system: The whole distributed circulation system is optimized. The dispersion medium is more than 120 ml and can be cyclically tested. It has really reached the micro-circulation test. The optimized design ensures no waste residue after drainage, which guarantees the next test result accuracy. (micro test is optional)

Free bubble design: The new design makes no bubbles enter the test sample window and avoids air bubble interference.

Sample no residue design: The instrument pipeline and drainage structure have been optimized, and there is no residual liquid in the instrument pipeline and circulation pump to avoid the impact on the next test data.

Sample window quick change device: The newly designed sample window quick change device makes the sample window replacement more convenient and quick.


 The main technical parameters:


LDY1500HHigh configuration

Executive standard

GB/T 19077-2016/ISO 13320:2009

Test Range

0.1μm -600μm

Number of detector channels


Accuracy error

<1%national standard sample D50 value

Repeatability error

<0.5%national standard sample D50 value值)

Free bubble

With bubble-free design, no bubble interference data is more accurate

Misoperation protection

The instrument has a self-protection function that is mis-operated, and the instrument does not respond to misoperations.

Laser parameters

Imported fiber output high power laser λ= 635nm, p>10mW

Optical path calibration

Optical path auto-calibration

Dispersion method


Frequency: f=40KHz, power: p=80W, time: freely adjustable; with ultrasonic anti-dry

Circulation, mixing

Cycle mixing integrated design,

speed: 100-3950rpm adjustable

Circulating flow

Rated flow: 0-10L/min adjustable Rated power: 25W

Sample cell

Self-designed boiling sample cell, better dispersion effect, capacity: 190-600mL can be tested normally



The instrument can be equipped with a micro-automatic test device, 10 ml can be cycled (optional)

Anti-corrosion design (optional)

Can be equipped with acid, alkali, oil (including all solvent oil), organic solvents (such as acetone, phenol, n-hexane and other organic solvents).

Dustproof and shockproof design

The whole machine adopts dustproof and shockproof design.

Software function

Analysis mode

Including free distribution, R-R distribution and lognormal distribution, according to the hierarchical statistical model, to meet the different requirements of different industries for the statistical method of sample size measurement

Statistical methods

Volume distribution and quantity distribution to meet different statistical methods for particle size distribution in different industries

Statistical comparison

Statistical comparison analysis can be carried out for multiple test results, which can obviously compare the differences between different batches of samples, samples before and after processing, and test results at different times, which has a strong practical significance for the quality control of industrial raw materials.

Self DIY

User-defined data to be displayed, based on particle size, percentage based on percentage

Display template

Percentage of particle size ranges to meet the characterization of particle size testing in different industries. Span, consistency, interval accumulation, etc.

test report

The test report can export various forms of documents such as Word, Excel, Picture (Bmp) and Text (Text), which can be used to view test reports and research results in scientific research articles in any situation.

Multi-language support

Chinese and English language interface support, and other language interfaces can be embedded according to user requirements.

Intelligent operating mode

Really automatic unmanned operation, no one interferes with the factors, you only need to add the sample to be tested according to the prompt, the test results are more repeatable.

Operating mode

One-button automatic software operation mode

Test speed

<1min/timeNo sample dispersion time







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