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Laser Scatterimg Particle Size Distribution Analyzer
LA-910
| MODEL |
LA-910 |
| Principles of measurement: |
Based on Mie scattering theory |
| Range of particle size measured: |
0.02 to 1,000µm |
| Measurement time: |
Approx. 20 seconds, normally from start of measurement to display of data |
| Amount of sample liquid required for measurement: |
10mg to 1g per measurement, with 215 to 315ml of dispersant fluid when using the flow cell *This figure depends on
the sample |
| Optical system: |
Light source: 632.8nm He-Ne laser 1mW, Tungsten lamp 50W
Photo-cell detector: 18-division, silicone photo-diode array; and Silicon photo-diode (x 6) |
| Sample recirculation system: |
| Mechanical stirrer: |
Up to 1,000rpm (for distilled water), 7 speed selections, silicone-tubing |
| Ultrasonic chamber: |
40W, 39kHz |
| Circulation pump: |
Peristaltic pump, discharge volume 1,000ml/min. (for distilled water), 7 speed selections, silicone-tubing |
| Sample flow cell: |
Tempax® glass |
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| Communications: |
RS-232C port |
| Operating conditions: |
10° (50°F) to 35°C (75°F), less than 85% RH (no condensation) |
| Computer: |
COMPAQ DESKPRO (Subject to change at discretion of manufacturer.) |
| OS: |
MS-DOS® 6.0 |
| Operation interface: |
Microsoft Windows™ Ver. 3.1 |
| Power: |
100/120 to 200/220 to 240V AC. selectable, 50/60Hz, approx. 500VA |
| Dimensions*: |
650(W)x570(D)x320(H)mm 25.6(W)x22.4(D)x12.6(H)inch. |
| Weight*: |
Approx. 55kg, 120lbs |
(* excluding the computer)
Measurement Conditions
Agitation
speed: |
0 - 1,000rpm (for distilled water), 7 speed selections between 1 to 7 |
Ultrasonic
working time: |
0 - 30min, 1.0min. increment including operation during measurement |
Waiting time after
ultrasonic-
preparation: |
0, 10, 20, 30, 60 second selectable |
Circulation
speed: |
0 - 1,000ml/min. (for distilled water), 7 speed selections between 1 to 7 |
Scanning
frequency: |
10, 15, 20, 25, 30, 40, 50, 100 times, selectable |
| Calculation: |
Multiple calculation with 2-types selectable |
| Printout: |
Automatic or manual, selectable |
Dilution
solution: |
Up to 250ml, 10ml increment (for automatic mode) |
| Rinse amount: |
Up to 250ml, 10ml increment (for automatic mode) |
Rinse
frequency: |
1 to 3 times, selectable |
Data Presentations
| Computer display: |
S-VGA color monitor
(a) Data
(b) Setting of conditions (data display conditions)
(c) Scattering light display/sample concentration monitor
(d) Measurement data
•Analysis basic by volume, area, Iength or particle number
•Graph segment number 80, logarithmically fixed
•Particle distribution graph
Frequency distribution graph, percent undersize or percent oversize
•Particle diameter representation
Median diameter
% on diameter
Diameter on %
Mean diameter
Standard deviation
Mode diameter
Span value
Coefficient of variation |
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