Refrigerated Brookfield Viscometer -70°C Low Temperature Viscosity Meter | ASTM D2983 Compliant | Digital Rotational Viscometer for Lubricant Hydraulic Oil Testing

This series of refrigerated viscometers is designed for high-precision viscosity measurement of liquid petroleum products at low temperatures, widely used in quality control and R&D testing of lubricating oils, hydraulic fluids, gear oils, and automatic transmission fluids.

Key Functions:

• Precision Temperature Control: Microprocessor PID control with PT100 platinum resistance sensor, temperature accuracy ±0.1°C, calibration resolution 0.01°C, uniformity exceeding ASTM requirements

• Dual Cooling Options: Standard semiconductor cooling (-40°C) or extended dual-stage compressor cooling (-70°C), cascade system achieves rapid cooling from ambient to -70°C within 120 minutes

• Wide Viscosity Range: 1000～1,000,000 mPa·s with seven-speed adjustment (0.5～60r/min), meeting various shear rate testing requirements

• Smart Interface: Color LCD touchscreen with bilingual support, programmable parameters including viscometer constants, temperature, and test cycles with memory function

• Multiple Safety Protections: Thermocouple break protection, liquid level protection, and overtemperature alarm to prevent dry burning and instrument runaway

• Complete Standard Configuration: Includes special spindles, standard glass tubes (Φ22-22.5mm), thermometers, and calibration plates, compliant with ASTM D2983 test methods

  After-Sales Service

  Warranty: 12 months for whole machine, 24 months for compressor, excluding consumables

• Technical Support: Lifetime free technical consultation, 24-hour email/online response, solutions within 48 hours

• Calibration Service: Annual calibration service with metrology certificates (CNAS accredited laboratory)

• Spare Parts: Long-term supply of original rotors, glass tubes, sensors, refrigerants with global express delivery

• Software Updates: Lifetime free software updates with remote online upgrade capability

• Service Network: Authorized service centers in major global markets for localized repair support

• Training Support: English operation manual, maintenance manual, video tutorials, and online training provided