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The AUTOPOL® II is designed as a general-purpose automatic polarimeter for budget-focused Pharmaceutical, Contract Laboratories, Food Laboratories, and College Chemistry Laboratories. Great price yet packed with features and Quality! The Autopol® II offers the same standard and optional features as the Autopol® I but allows greater wavelength flexibility with 589nm and 546nm standard wavelengths and optional 365nm, 405nm, 436nm, 578nm, and 633nm available.
By external water bath (Standard) TempTrol™ Automatic Electronic Heating & Cooling 15° – 40°C ±0.2° (Optional)
Temp. Probe Measurement Range
10° – 100°C
Temp. Probe Measurement Accuracy
±0.1°C
Measurement Time
5 measurements in less than 25 seconds (avg.)
Light Source
Tungsten-halogen 6V, 20W, avg. 2,000 hour life
Optional Light Source
LED 20-30 mA 100,000 hr. avg. life
Sample Chamber
Accepts sample tubes up to 200mm
Data Storage
32 GB Non-removable Compact Flash
Communication Interface
3- USB Ports, 1-USB 3.0 2- RS232 serial ports, Ethernet Port for Network Communication
Calibration
Automatic calibration via touch screen
Operating System
Windows Embedded
Display
8 inch Color, 800 x 600 pixel resolution with 400 nits of brightness.
User Interface
Touchscreen
Automatic Sensitivity Control
Measures samples with transmittance as low as 0.01% (up to OD 4.0)
Input Power
100 – 240V, 50/60Hz
Operation Dimensions
24.3″W x 12.7″H x 17″D, 617mm W x 323mm H x 432mm D
Shipping Dimensions
36″W x 19″H x 21″D, 923mm W x 487mm H x 538mm D
Operating Weight
42 lbs. (19.05 kg)
Shipping Weight
72 lbs. (32.6 kg)
Calendar/Clock Functions
Battery-backed clock; time and date sent to computer and printer
Optional Modules
Why are high-quality polarizing prisms important?
Rudolph manufactures its entry-level automatic polarimeter with the same high-quality optics as its more expensive instruments.
While other manufacturers in this price range use Polaroid Plastic Dichroic Sheet Polarizers, Rudolph does not. Instead, Rudolph uses the same high-quality Glan Thompson Calcite Polarizers used in its high-accuracy models.
Because prisms are two of the most critical optical components in the polarimeter. Polaroid prisms are made of a polymeric plastic where the molecules are stretched and oriented in a specific direction so as to linearly polarize light. These types of plastic sheet polarizers are very inexpensive ($50.00 USD) and are vulnerable to heat, warp over time, deteriorate from moisture, and also have greater light absorption than Calcite Polarizers.
In many cases, the plastic polarizers must be replaced in 3- 5 years. Glan Thompson Calcite Polarizers are comprised of a carbon crystalline structure similar to diamond and have excellent light transmission characteristics. The quality of these prisms is so good, Rudolph guarantees its prisms over the life of the sugar polarimeter.
The Rudolph AutoFillTM
Rudolph Research Analytical developed AutoFillTM, Patent No. 10,101,353, a simple and easy way to allow fast and reliable polarimeter cell loading. Polarimeter sample cells are filled without bubbles, using Rudolph proprietary BubbleInspectTM technology, sample vapors are contained, and cleaning and drying is automated. Manual cell handling, cleaning and loading is eliminated.
Operation is as simple as opening the AutoFillTM lid, pouring in your sample, closing the lid and pressing start. The sample will be advanced into the Polarimeter cell and stopped once full. The cell is now loaded and the measurement will automatically begin after BubbleInspectTM approves the measurement. When the measurement is complete the operator is prompted to open the AutoFillTM chamber and add a solvent. The AutoFillTM lid is closed and the solution is flushed through the cell to waste. Air drying will automatically begin and end. You are now ready for your next measurement.
No need to inject samples with syringes. Samples are easily poured in the AutoFillTM sample well.
Eliminate contact with acids and bases.
Running air dry for the correct amount of time will fully dry the cell.
Cleaning is made effortless.
A perfect cell load is guaranteed every time with Rudolph’s exclusive Optical Rotation Homogeneity Inspection Solution.
Sample is easily poured into the large AutoFillTM well.
All wetted parts are made to stand up against the most aggressive samples including 6 Molar HCl.
All Materials are Teflon, Peek, and Kalrez®
You may choose to clean with a single solvent or a combination of solvents
AutoFillTM Option is now available on the Autopol I, II, and III. Sample Inspect with sample integrity verification is included standard on the Autopol I, II, and III, and BubbleInspectTM Technology is available on the Autopol V Plus and Autopol VI.
Select a Temperature Solution
1. Temperature Measurement Only
The Autopol I, II, and III come with a Temperature Probe so that sample temperature can be measured, displayed, and printed.
However, if your product requires Temperature control, then we recommend a temperature control solution shown below. For university education and research, starch analysis, invert sugar, flavors, and fragrances temperature control is not required, and temperature measurement is normally sufficient for these applications.
2. Temperature Control With a Water Bath
Rudolph Research Analytical jacketed cells come standard with quick release fittings which allow cells to be easily removed from the sample chamber. Tubing is held in place by rubber gasketing on top of the trough and the door. Optional stopper (choose “S” after the cell part no.) for evaporative samples. Temperature control is obtained through the use of an external water bath and a jacketed cell. This temperature control solution is popular for very high-temperature applications.
3. Patented TempTrol™ Technology Eliminates the Need for a Water Bath. Here’s how the TempTrol™ System works:
TempTrolTM heating and cooling Peltier transfer surface.
TempTrolTM cell with mating heating and cooling transfer surface.
Place the TempTrolTM cell in your TempTrolTM equipped Autopol® sample chamber to measure to within ±0.2°C of the USP, EP, JP or BP specified temperature (normally 20°C or 25°C ±0.5°C).
Rudolph provides a temperature validation cell with every TempTrolTM system. The temperature validation cell along with an optional NIST traceable thermometer is designed to validate the temperature control performance of the polarimeter and cell to ±0.2°C.
The Rudolph FillStationTM
Many users prefer to load cells with samples outside of the Polarimeter. When this fits with your workflow, Rudolph has engineered a tool to assist you, the Rudolph Polarimeter FillStationTM. Designed to sit on your laboratory bench or under your fume hood and assist you in loading your Rudolph Polarimeter cell easily and reliably, the FillStationTM holds the cell at the right angle, so you always fill the cell from bottom to top. Using a syringe, you inject the sample until it begins to appear at the top port. Once filled, the monitoring light will become bright, and you know you have a full cell free of air bubbles that is ready for measurement. Cap, the Top Cell Port, remove the syringe, cap the Lower Port and go!
The cell is held at the right angle and filled from the bottom just the way Rudolph cells were designed to be filled. Perfect every time.
Filling from the bottom to top moves any air with the potential to cause a bubble up and out of the cell.
Once you see the monitoring light go to bright there is no question that the cell is properly filled.
Verification of air free sample loading for even inexperienced operators.
Helps eliminate contact with acids, bases, or any sample the user does not want to come in contact with.
Less experienced operators can learn to reliably fill cells with minimal training.
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