| Measurement Mode | Optical rotation, specific rotation, concentration, sugar content |
| Light Source | LED |
| Working Wavelength | 589.3nm |
| Measuring Fan Tin | +90° |
| Measurement Accuracy | ±0.001° |
| Minimum Reading | 0.001° |
| Repeatability | 0.002° (optical rotation) |
| Test Function | Single, multiple, continuous test mode |
| Temperature Control Range | 10℃ to 50℃ |
| Temperature Display | 0 to 100℃ |
| Temperature Control Accuracy | ± 0.1℃ |
| Light Transmittance | 0.1% |
| Display Mode | Touch Screen 7 inches |
| User Management | Yes |
| Automatic Calibration | Yes |
| Output Mode | USB RS 232 |
| Real Time Printing of Data | Yes, compatible with needle type printer/ thermal sensitive printer |
| Data Storage | 1000M |
| Power Supply | 220V ± 22V, 50Hz ± 1Hz |
| Power Consumption | 250 W |
| Net Weight | 28 kg |
Fully Automatic Measurement
Digital Optical Rotation Readings
Specific Rotation Calculation
Multiple Measurement Modes
Minimum Reading Resolution
Automatic Polarimeter LPMR-A43 automatically measures the angle of rotation of polarized light. It plays a key role in pharmaceutical, food, beverage, research and chemical manufacturing for purity analysis and concentration determination.
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Available Range :
Automatic polarimeter LPMR-A30 : Four modes: optical rotation, specific rotation, concentration and international sugar content Automatic Polarimeter LPMR-A43 : Optical rotation, specific rotation, concentration, sugar content Automatic Polarimeter LPMR-A31 : Optical rotation, specific rotation, sugar degree, and concentration (Custom) Automatic Polarimeter LPMR-A40 : Rotation, specific curl, sugar content, custom formulaLabtron Automatic Polarimeter features built-in Peltier temperature control systems, offering precise readings across various temperatures. They utilize long-life LEDs as their light source, eliminating frequent replacements. Their multiple measurement modes—optical and specific rotation, concentration, and international sugar content give comprehensive analysis. Our Automatic Polarimeter comes with a wide measurement range, coupled with robust data storage and connectivity options.








Labtron’s automatic polarimeter LPMR-A43 perform multi-point calibration using standards like quartz plates or sugar solutions. Calibration may be scheduled daily, weekly, or monthly based on usage and regulatory protocols. The device often includes dual calibration tubes and built-in routines to verify accuracy across the measurement range. Calibration records are typically stored digitally and can be exported for validation or audit purposes. This ensures that measurement results remain consistent and traceable to recognized standards.
Labtron supplies automatic polarimeter LPMR-A43.Modern models employ Peltier elements to maintain sample temperature within tight tolerances, often between 10–60?°C, minimizing drift caused by thermal variation. Temperature accuracy with resolution. This active control compensates for ambient fluctuations in non-air-conditioned environments. Some systems also support pre-heating or cooling before measurement, improving result stability and reducing waiting time.
Labtron automatic polarimeters LPMR-A43 offer continuous measurement or kinetic modes, which record optical rotation at defined time intervals and build dynamic trend graphs. Devices may display these trends in real-time on screen and allow export of timestamped data for post-run analysis. These tools are useful for monitoring reaction progress, such as sugar inversion or enzymatic activity, without manual intervention. The continuous mode enables overlay of multiple runs to compare reaction kinetics under different conditions.
Yes, automatic polarimeter LPMR-A43 can determine enantiomeric excess by comparing the observed optical rotation of a sample to the known rotation value for a pure enantiomer. They calculate ee% using built-in algorithms, providing insight into chiral purity directly from measurement data. This feature is valuable in pharmaceutical and chemical research where enantiomer ratios are critical for efficacy and safety. The automatic comparison reduces manual calculations and potential errors, streamlining enantioselective analysis.
Labtron supplies automatic polarimeter LPMR-A43.While polarimeters are typically used for clear liquid samples, some models offer solid sample holders or flow-cell adapters that enable analysis of suspensions or semi-solids. For turbid solutions, the device may require sample pre-treatment such as filtration or centrifugation to remove particulates that could skew readings. This allows versatile applications beyond simple liquid assays, though sample clarity remains essential for accurate measurements.
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Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom
Email: info@labtron.com Whatsapp: +44 73 4441 2688 Phone: +44 2080 043608