Introduction of Bettersizer S
Bettersizer S is a laser particle size analyzer which adopts dual lenses optical system, initially invented by Bettersize, with the functions of auto alignment, auto water supply, auto water level measurement and auto dispersing. It adopts the structure that measuring and dispersing system are separated, easier for maintenance and use; adopts high performance imported semiconductor laser and life time is greater than 25000 hours; adopts anti-dry ultrasonic dispersing technology, so opening ultrasonic will not damage the instrument when circulating pool without water. The instrument has outstanding characteristics of accuracy and good reliability, good repeatability, easy operating, fast test speed, etc., and especially suits the laboratories of enterprises, colleges and universities as well as research institutes to use.
Repeatability
Excellent repeatability is achieved thanks to:
- Laser, detector and signal transmission system are stable and reliable.
- Consistent and effective dispersing system.
- Automatic alignment keeps the instrument always in optimum condition.
- Sampling rate up to 3500 times/second ensures outstanding repeatability
Repeatability verification:
a) Repeatability of a serial test for same samples
About Repeatability
Repeatability is primary index of particle size analyzer. It is worthless for particle size analyzer if repeatability is not good. Repeatability is related to the instrument, also, related to the operator, voltage, water quality and interference. It is a reflection of integrated factors.
b) Repeatability of re-sampling test
Accuracy
Excellent accuracy is achieved thanks to:
- The use of a dual lenses optical system (DLOS) invented by Bettersize, it improves the precision of the analysis compared to single lenses systems.
- The use of 84 detectors plus high performance software, provides excellent resolution regardless the sample has a single modal or multimodal distribution.
- Complete sample preparation system including circulation, ultrasonic dispersing, stirring, auto water supply and auto cleaning.
- Use of size standard to verify the accuracy of the results.
Verifications of accuracy:
a) Accuracy which approved by China National Accreditation: Satisfactory
b) Compare with test results of other brand
| Alumina | D10 | D50 | D90 |
| Other brand | 1.484 | 11.155 | 37.493 |
| Bettersizer S | 1.51 | 11.153 | 37.206 |
| Potash Feldspar | D10 | D50 | D90 |
| Other brand | 2.817 | 33.992 | 111.375 |
| Bettersizer S | 2.827 | 34.353 | 109.378 |
c) Use Bettersize standard to verify accuracy
Reliable performance and easy operation
Reliable performance is achieved thanks to:
- Use of high quality components.
- Components are inspected and recorded for traceability. A 48-hour failure test before instruments leaves the factory.
- Use of advanced technologies such as dry burning-resistant ultrasonic, auto alignment, dew-point temperature detecting and others
- Comply with CE, FDA 21 CFR Part 11 and ISO 9001-2008 certification.
Easy operation:
Auto water supply, auto alignment, real-time observation for particle size change, conversion of report format, etc. It will take only ten minutes to learn and the result will not be affected because of different operators.
Unique technology for reliable quality
Dual lenses optical system (DLOS):
Dual lenses optical system (DLOS) is a patented technology invented by Bettersize. Dual lenses optical system (DLOS) integrates forward, lateral and backward scattering; detection quantity of scattered lights will be doubled. Compare with single lens laser particle size analyzer, it improves detection range, test precision for fine particles and resolution. Compare with dual beam particle size analyzer, it improves performance reliability.
Example of report (more than 14 report formats available)
Specification
| Testing parameter | Material |
| Particle size distribution | Suspension, emulsion, dry powder |
| General | Bettersizer S |
| Theory | Laser diffraction |
| Analysis theory | Mie and Fraunhofer |
| Testing speed | 1kHz |
| Typical measurement time | ≤10 second |
| Size | |
| Size range | 0.1 - 716um |
| Number of size classes | More than 100 customized grades |
| Accuracy | ≤1% (GBRM D50) |
| Repeatability | ≤1% (GBRM D50) |
| Resolution ratio | Single peak, double peak, multi-peak |
| Optics | |
| Red light | Max. 3mW, Semiconductor optical fiber laser, 635nm |
| Lens arrangement | Dual lenses on the right and left of sample cell |
| Lens design | F-Theta Lenses |
| Effective focal length | 223mm |
| Detector | |
| Arrangement | Log-spaced array |
| Quantity | 84 pieces (forward, sideway, backward) |
| Light path adjustment | Intelligent automatic alignment |
| Sample dispersion system | Bettersizer S |
| Dispersion type | Wet |
| Dispersion system | Ultrasound 50W, 38 KHz
Dry burning-resistant protection system |
| Water circulation | Centrifugal pump, 500 -2500 ml/min,
auto water intake and rinsing |
| Water capacity | 600 ml |
| Dispersion system available | Solvent compatible system |
| Software | |
| 21 CFR Part 11 | Enable |
| SOP Designer | Enable |
| Report | More then 14 formats report |
| Auto test | Enable |
| Data export | EXCEL, PDF,WORD, JPG and etc. |
| System compliance | |
| Laser class | Class I laser product |
| System | |
| Supply voltage | 220VAC |
| Dimension | 720mm x 300mm x 280mm (L x W x H) |
| Weight | 22kg |
| Computer specification | |
| Computer interface | At least a USB2.0 port required |
| Operation system | Windows XP, Windows 7,8 or 10 |
| Hardware specification | Intel Core I5, 4GB RAM, 250GB HD |