by williamsu | Sep 11, 2012 | Product News
Mettler Toledo PL4002
Mettler Toledo PL4002 Precision Toploader has maximum weighing capacity of 4100 grams and increments 0.01 grams. Precision Weighing Balances offers over 10 Mettler Toledo PL Series Precision Toploading Balances for you to choose from.
| Capacity x Readability |
4100 g x 0.01 g |
| Repeatability |
0.01 g |
| Linearity(±) |
0.03 g |
| Sensitivity Drift ppm / °C |
6 |
| Stabilization Time(s) |
3.0 |
| External Mass Weight |
2000 g (not included) |
| Housing Base Construction |
die-cast aluminum painted |
| Units |
g, kg, mg, ct, lb, oz, ozt, GN, dwt, momme, mesghal, tael, tical, tola, baht |
| Below Balance Hook |
use for weighing below the balance |
| Operating Temperature |
5°C – 40°C |
| Battery |
20 hours of battery power |
| Level Indicator |
yes |
| Number of Leveling Screws |
4 |
| Display |
Large high contrast LC display |
| Shipping Dimensions(WxDxH) |
20.4″ x 15.2″ x 14.2″ |
External Balance
Dimensions(WxDxH) |
9.4″ x 13.2″ x 4.8″ |
| Automatic Shut-Off |
yes |
| Weighing Pan |
Ø 7″ |
by williamsu | Sep 5, 2012 | Product News
RETSCH Planetary Ball Mill PM 100
Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The extremely high centrifugal forces of the Planetary Ball Mills result in very high pulverization energy and therefore short grinding times.
The PM 100 is a convenient benchtop model with 1 grinding station.
Application Examples
RETSCH Planetary Ball Mill PM 100 alloys, bentonite, bones, carbon fibres, catalysts, cellulose, cement clinker, ceramics, charcoal, chemical products, clay minerals, coal, coke, compost, concrete, electronic scrap, fibres, glass, gypsum, hair, hydroxyapatite, iron ore, kaolin, limestone, metal oxides, minerals, ores, paints and lacquers, paper, pigments, plant materials, polymers, quartz, seeds, …
Product Advantages
- powerful and quick grinding down to nano range
- perfect stability on lab bench thanks to FFCS technology
- innovative counter weight and imbalance sensor for unsupervised operation
- comfortable parameter setting via display and ergonomic 1-button operation
- automatic grinding chamber ventilation
- 10 SOPs can be stored
- programmable starting time
- power failure backup ensures storage of remaining grinding time
- reproducible results due to energy and speed control
- suitable for long-term trials and continuous use
- 2 different grinding modes (dry and wet)
- optional pressure and temperature measuring system PM GrindControl
- measurement of energy input
- wide range of materials for contamination free grinding
- Safety Slider for safe operation
Features
| Applications |
pulverizing, mixing, homogenizing, colloidal milling, mechanical alloying |
| Field of application |
agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals |
| Feed material |
soft, hard, brittle, fibrous – dry or wet |
| Size reduction principle |
impact, friction |
| Material feed size* |
< 10 mm |
| Final fineness* |
< 1 µm, for colloidal grinding < 0.1 µm |
| Batch size / feed quantity* |
max. 1 x 220 ml, max. 2 x 20 ml with stacked grinding jars |
| No. of grinding stations |
1 |
| Speed ratio |
1 : -2 |
| Sun wheel speed |
100 – 650 min-1 |
| Effective sun wheel diameter |
141 mm |
| G-force |
33.3 g |
| Type of grinding jars |
“comfort”, optional areation covers, safety closure devices |
| Material of grinding tools |
hardened steel, stainless steel, tungsten carbide, agate, sintered aluminium oxide, zirconium oxide |
| Grinding jar sizes |
12 ml / 25 ml / 50 ml / 80 ml / 125 ml / 250 ml / 500 ml |
| Setting of grinding time |
digital, 00:00:01 to 99:59:59 |
| Interval operation |
yes, with direction reversal |
| Interval time |
00:00:01 to 99:59:59 |
| Pause time |
00:00:01 to 99:59:59 |
| Storable SOPs |
10 |
| Measurement of input energy possible |
yes |
| Interface |
RS 232 / RS 485 |
| Drive |
3-phase asynchronous motor with frequency converter |
| Drive power |
750 W |
| Electrical supply data |
different voltages |
| Power connection |
1-phase |
| Protection code |
IP 30 |
| Power consumption |
~ 1250 W (VA) |
| W x H x D closed |
630 x 468 x 415 mm |
| Net weight |
~ 86 kg |
| Documentation |
Operation & Application Video |
| Standards |
CE |
| Patent / Utility patent |
Counter weight (UP – DE 20307741), FFCS (UP – DE 20310654), SafetySlider (UP – DE 202008008473) |
| *depending on feed material and instrument configuration/settings |
|
Function Principle
The grinding jar is arranged eccentrically on the sun wheel of the planetary ball mill. The direction of movement of the sun wheel is opposite to that of the grinding jars in the ratio 1:-2.
The grinding balls in the grinding jars are subjected to superimposed rotational movements, the so-called Coriolis forces. The difference in speeds between the balls and grinding jars produces an interaction between frictional and impact forces, which releases high dynamic energies. The interplay between these forces produces the high and very effective degree of size reduction of the planetary ball mill.
Planetary mills with a single grinding station require a counterweight for balancing purposes. In the Ball Mill PM 100 this counterweight can be adjusted on an inclined guide rail. In this way the different heights of the centers of gravity of differently-sized grinding jars can be compensated in order to avoid disturbing oscillations of the machine.
RETSCH remaining vibrations are compensated by feet with some free movement (Free-Force Compensation Sockets). This innovative FFCS
technology is based on the d’Alembert principle and allows very small circular movements of the machine housing that result in an automatic mass compensation. The laboratory bench is only subjected to minimal frictional forces generated in the feet.
In this way the RETSCH PM 100 ensures a quiet and safe operation with maximum compensation of vibrations even with the largest pulverization forces inside the grinding jars and therefore can be left on the bench unsupervised.
by williamsu | Sep 5, 2012 | Product News
HANNA pHep Tester HI 98107
- Renewable junction
- Easy 1 or two points manual calibration
- 700 hour battery life
- Simple to use
- Economical
The HANNA pHep® revolutionized the pH industry by providing non-technical personnel with a simple, inexpensive solution to accurate pH measurement.
HANNA HI 98107 is used by millions of people around the world to monitor pH in laboratories and industrial applications as well as in agriculture, fish farming, food manufacturing and quality control, swimming pools and the printing industry.
With a renewable cloth junction, the pHep® has an extended life over typical pH testers. A normal junction clogs with use over time and a typical tester would normally have to be thrown away once the junction is too contaminated. HANAN HI 98107’s junction is 2 cm long and when dirty, can be pulled out to expose a fresh section to effectively renew the pHep’s life.
Calibration is performed manually at 1 or two points with a trimmer located on the side of the tester.
With a battery life of 700 hours of continuous use, the pHep® will provide years of testing before the batteries need to be replaced.
SPECIFICATION:-
| Range |
|
0.0 to 14.0 pH |
| Resolution |
|
0.1 pH |
| Accuracy |
|
±0.1 pH |
| Calibration |
|
manual, 2 points |
| Battery Type / Life |
|
1.5V (4) / approximately 700 hours of continuous use |
| Environment |
|
0 to 50°C (32 to 122°F); RH max 95% |
| Dimensions |
|
175 x 41 x 23 mm (6.9 x 1.6 x 0.9″) |
| Weight |
|
95 g (3.4 oz.) |
by williamsu | Sep 4, 2012 | Product News
Stuart Colony Counter sc6plus
Stuart Colony Counter – SC6PLUS
|
|
• Pressure sensitive counting
• Average count facility
• Bright white energy saving LED lighting
• With BioCote antimicrobial protection
• Audible count confirmation
• Choice of light or dark background
• Connectivity to printer or computer
Touch pressure with felt tip marker on petri dish registers cumulative count on the digital
display with confirmation by audible tone (can be turned on or off). The pressure required to register a count can be adjusted to suit each user.
Averaging facility calculates average count over multiple plates. Counting results as well as useful statistics including SD can be sent directly to the accessory printer or to a computer via a USB cable supplied.
Sub-stage illumination by low energy bright LED’s allows glare-free optimum viewing. A switchable black background is provided to enhance viewing of translucent and difficult to see colonies. Supplied with two Wolffhuegel graticules and dish centering adapters to facilitate use with 50mm to 90mm dishes. A choice of magnifiers and a printer are available as optional accessories.
Technical Specification
| Lighting |
White LED array |
| Digital display |
3 digit LED |
| Count |
0 to 999 |
| Dimensions (w x d x h) |
310 x 300 x 140mm |
| Net weight |
1.5kg |
| Electrical supply |
90 to 240V, 50/ 60Hz, 70W |
Ordering Information
| Model |
Description |
| SC6PLUS |
Colony counter, advanced |
| SC6/ 1 |
1.7x magnifier |
| SC6/ 1/ 3 |
3x magnifier |
| SC6/ 2 |
Wolfhuegel graticule and segmentation discs (pack of 10) |
| SC6/ 3 |
Spare dish centering adaptors (pack of 2) |
| SC6/ 4 |
Clear protective discs (pack of 5) |
| SC6/ 5 |
Spare receiving dish |
| SMP30/ 1 |
Accessory Printer |
by williamsu | Sep 4, 2012 | Product News
Stuart Rotary Evaporator
Diagonal Condenser – RE300 & RE300P
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Simple, counterbalanced lift mechanism
PTFE/glass liquid pathway for chemical inertness
Sparkless induction motor
Long life graphite impregnated PTFE vacuum seal
Efficient flask and vapour tube ejection system
Rotary evaporators are distillation units that incorporate an efficient condenser with a rotary flask system. As the flask containing the solvent is rotated it continually transfers a thin layer of liquid over the entire inner surface. This gives a very large surface area for evaporation that is effected by heating from the accessory waterbath. The rotating system is fitted with a special seal that allows the apparatus to be placed under vacuum. This reduces the boiling point of the solvents and removes the vapour phase making the process much more efficient.
Each unit is also provided with an easy to use vacuum release and a continuous feed system, which allows more solvent to be drawn into the rotating Florentine flask without the need to stop the operation.
There is also a plastic coating option for extra safety when using the glassware under vacuum. It acts as a safety screen, contains the glassware pieces and gives the operator sufficient time to transfer any potentially dangerous chemicals to a suitable vessel without spillage.
Rotary evaporator with diagonal glass condenser is used for standard distillations.
Glass set RE300 consists of:
Diagonal coil condenser, vapour tube for diagonal condenser, receiving flask 1000ml, Florentine flask 1000ml, feed tube with stopcock, vacuum seal, conical joint clip, spherical joint clip.
Glass set RE300P is plastic coated version and consists of:
Diagonal coil condenser plastic coated, vapour tube for diagonal condenser, receiving flask 1000ml plastic coated, Florentine flask 1000ml plastic coated, feed tube with stopcock, vacuum seal, conical joint clip, spherical joint clip.
| Speed range |
20 to 190rpm |
| Vacuum |
1 mm Hg |
| Lift distance |
150mm |
| Dimensions (w x d x h) |
385 x 335 x 470-610mm |
| Electrical supply |
230V, 50-60Hz, 50W |
|
| Model |
Description |
| RE300 |
Rotary evaporator complete with glass set 00 |
| RE300P |
Rotary evaporator complete with glass set 00P |
