LS-UV4 Four-Position Ubbelohde Viscometer System
Four-position Ubbelohde viscometer system with a 5–100°C refrigerated bath, touchscreen control, result storage, and an integrated thermal printer.
Refrigerated Temperature Control
Compressor cooling and electric heating provide a 5–100°C bath range for method-specific capillary testing. Temperature performance is checked at the selected operating point.
Four-Position Test Layout
Four test channels support organizing solvent and sample measurements within one temperature-controlled platform. The capillary and timing configuration is selected for the required procedure.
Stored Results and Local Printing
The 7-inch touchscreen, storage for 50 results, and integrated thermal printer support routine laboratory records. Request a sample report with your inquiry.
| Measurement Configuration | Ubbelohde capillary viscometry; four test channels |
| Temperature Range | 5–100°C |
| Temperature Control Accuracy | ±0.01°C; verify at the required operating point |
| Temperature Sensor | Class A Pt100 probe |
| Refrigeration | Compressor cooling |
| Display | 7-inch color touchscreen |
| Result Storage | 50 test results |
| Report Output | Integrated thermal printer; report fields confirmed with quotation |
| Heating Power | Up to 1,000 W |
| Maximum Power | 1,500 W |
| Power Supply | 220 V AC, 50 Hz; other supplies subject to confirmation |
| Operating Ambient Temperature | 10–35°C |
| Protective Functions | Over-temperature and low-liquid-level heating protection |
| Configuration Inputs | Polymer, solvent, concentration, capillary, temperature, timing method and reporting requirements |
Application & Selection Guide
Ubbelohde capillary viscometry for polymer solutions
The LS-UV4 provides a refrigerated, four-position platform for Ubbelohde solution viscosity testing. A meaningful result depends on sample dissolution, concentration, capillary geometry, bath temperature, flow-time measurement, and the method-specific calculation. Specify these requirements before selecting the instrument and accessories.
What should I include in an LS-UV4 quotation request?
Include the polymer or liquid, solvent, concentration, test temperature, capillary type, number of samples per day, required method and edition, desired calculation, report format, power supply, and destination. The quotation confirms accessories, documentation, and the measurement workflow.
Does this system include automatic timing and cleaning?
Liquid-level detection, flow-time acquisition, filling, washing, and drying arrangements must be confirmed for the quoted configuration. The published bath and controller specifications do not establish a fully automated sample-to-result workflow.
Can the LS-UV4 report intrinsic viscosity or viscosity number?
These results require a defined polymer-solvent system, concentration, test temperature, flow-time procedure, and calculation. Submit the requested method and a sample report so the supported calculation and reporting functions can be confirmed.
Which test standards are supported?
Method compatibility is assessed for the requested configuration. No blanket ISO or ASTM conformity is claimed for this listing. Specify the method edition and required verification records before ordering.
Is ±0.01°C the accuracy of the viscosity result?
No. It is the listed bath temperature control specification. Viscosity uncertainty also depends on temperature uniformity, the capillary, timing, sample preparation, concentration, and the calculation used.
How is LS-UV4 different from the LS-CVB bath?
LS-CVB supplies temperature conditioning for compatible capillaries. LS-UV4 adds a four-channel controller, result storage, compressor refrigeration, and an integrated printer. Confirm the measurement hardware and accessories needed for your application.
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