Refractometer
Laboratory refractometer with temperature control (5-75°C), 7-inch touchscreen interface, and comprehensive data storage and connectivity options for refractive index measurements.
Louise Corscadden, PhD
Neuroscience · ConductScience
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The ConductScience Refractometer is a laboratory-grade optical instrument for measuring refractive index of liquid samples across analytical and quality control applications. This benchtop system features a temperature-controlled measurement cell operating from 5-75°C with full sample temperature range compatibility from 0-100°C, enabling precise measurements across diverse sample types and experimental conditions.
The instrument incorporates a 7-inch color touchscreen interface with comprehensive data management capabilities including 32GB internal storage and multiple connectivity options (USB, RS232, RJ45, SD card, U disk). The integrated temperature control system ensures measurement accuracy by maintaining consistent sample conditions, while the digital interface provides real-time data visualization and export functionality for seamless integration with laboratory data systems.
How It Works
Refractometry measures the refractive index by determining the critical angle at which total internal reflection occurs when light passes from a sample into a reference medium. The instrument directs light through the sample-reference interface and measures the angle at which the light ray is refracted, which directly correlates to the sample's refractive index.
Temperature control is essential for accurate measurements as refractive index varies with temperature. The integrated temperature control system maintains the measurement cell at a constant temperature from 5-75°C, while accommodating samples across the full 0-100°C range. The optical measurement system converts the refracted light angle into digital signals, which are processed and displayed on the touchscreen interface with real-time temperature compensation.
Data acquisition occurs continuously during measurement cycles, with results stored in the 32GB internal memory and available for export through multiple interface options including USB, network connectivity, and removable storage devices.
Features & Benefits
Automation Level
- semi-automated
Temp. Control Range
- 5~75℃
Interface
- USB, RS232, RJ 45, SD card, U disk
Data Storage
- 32G
Brand
- ConductScience
Research Domain
- Analytical Chemistry
- Environmental Monitoring
- Food Science
- Industrial Hygiene
- Materials Science
- Pharmaceutical QC
Temperature Range
- 0~100℃
Display Type
- 7 inch color touch screen
Power/Voltage
- 220V, 50Hz
Weight
- 6kg
Weight
- 6.0 kg
Dimensions
- L: 42.0 mm
- W: 43.6 mm
- H: 38.0 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Temperature Control Range | 5-75°C controlled range with 0-100°C sample compatibility | Many models offer limited or no active temperature control | Enables accurate measurements across wider range of sample conditions without external temperature regulation. |
| Data Storage Capacity | 32GB internal storage | Entry-level models often provide minimal internal memory | Stores extensive measurement datasets locally without requiring continuous computer connection. |
| Interface Options | USB, RS232, RJ45, SD card, U disk connectivity | Basic models typically offer single interface type | Provides flexible integration options for diverse laboratory IT infrastructure and data management requirements. |
| Display System | 7-inch color touchscreen | Many instruments use small LCD displays or require external computer | Offers intuitive operation and real-time data visualization without additional hardware requirements. |
| Sample Temperature Range | 0-100°C sample compatibility | Standard models often limited to room temperature samples | Accommodates hot samples and temperature-sensitive materials without pre-conditioning steps. |
This refractometer combines precise temperature control with comprehensive data management capabilities and flexible connectivity options. The integrated touchscreen interface and large storage capacity support high-throughput laboratory workflows requiring consistent measurement conditions and automated data logging.
Practical Tips
Perform calibration checks with reference standards at the same temperature as your samples when possible.
Why: Temperature-matched calibration minimizes measurement errors from thermal expansion effects.
Clean the measurement cell with appropriate solvents immediately after each sample type change.
Why: Prevents cross-contamination and maintains optical surface quality for consistent measurements.
Allow 15-20 minutes equilibration time when changing measurement temperatures.
Why: Ensures thermal stability throughout the measurement system for accurate temperature control.
Take multiple readings and monitor measurement stability before accepting results.
Why: Identifies sample homogeneity issues and confirms thermal equilibration is complete.
Check for air bubbles in the sample chamber if readings appear inconsistent.
Why: Air bubbles create optical interfaces that interfere with accurate refractive index measurements.
Verify sample compatibility with temperature range before heating corrosive or volatile materials.
Why: Prevents instrument damage and ensures safe operation with potentially hazardous samples.
Use the appropriate data export format for your downstream analysis software.
Why: Reduces data processing time and minimizes transcription errors in analytical workflows.
Setup Guide
What’s in the Box
- Refractometer main unit
- Power cord (220V)
- Calibration reference standards (typical)
- Sample transfer pipette (typical)
- User manual and software
- USB cable (typical)
- Cleaning accessories (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship. Technical support includes calibration guidance and troubleshooting assistance throughout the warranty period.
Compliance
What calibration standards are recommended for maintaining measurement accuracy?
Use certified refractive index standards covering your measurement range, typically distilled water (nD = 1.3330) and sucrose solutions. Perform daily calibration checks and full recalibration monthly or per laboratory SOP requirements.
How does temperature control affect measurement precision?
The 5-75°C control range maintains sample temperature within ±0.1°C (consult product datasheet for exact specifications). Temperature stability is critical as refractive index changes approximately 0.0001-0.0005 units per degree Celsius for most liquids.
What sample volume is required for measurements?
Consult product datasheet for exact sample volume requirements. Typical refractometer measurements require 0.1-1.0 mL depending on measurement cell design, with complete coverage of the optical interface being essential.
Can the instrument interface with laboratory information management systems?
Yes, multiple connectivity options (USB, RS232, RJ45) support integration with LIMS. Data export formats and communication protocols should be verified with your specific LIMS requirements.
What maintenance procedures are required for optimal performance?
Daily cleaning of measurement cell with appropriate solvents, weekly verification with reference standards, and periodic professional calibration. Temperature control system requires annual service verification.
How does this compare to traditional Abbe refractometers?
Digital measurement eliminates subjective visual readings, integrated temperature control provides better thermal stability, and automated data logging reduces transcription errors compared to manual Abbe-type instruments.
What measurement range and resolution can be expected?
Consult product datasheet for specific refractive index range and resolution specifications. Performance varies with sample type, temperature, and measurement conditions.
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