Device built-in

Technical Analysis of Brookfield Dial Viscometers

Core Features and Specifications

As classic rotational viscosity measurement instruments, Brookfield dial viscometers offer these professional characteristics:

• Measurement Principle: Torque conversion via spring system from rotating spindle
• Measurement Range: 1-2,000,000 cP (with different spindles)
• Speed Range: 0.3-100 RPM (7 selectable speeds)
• Display: Precision dial indicator (±1% full scale accuracy)

Main Model Comparison:

Technical Innovations

Precision Mechanical System

• Constant-force spring system (<0.01%/°C temperature drift)
• Jewel-bearing spindle (500,000-test lifespan)
• Three-stage gear reduction (<0.5% speed fluctuation)

Professional Measurement Solutions

• Optional helipath stand (for shear rate scanning)
• Thermostatic bath interface (±0.1°C control)
• Small sample adapter (requires only 16mL sample)

Standardization Support

• Includes NIST-traceable calibration certificate
• Complies with ASTM D2196, ISO 2555 industry standards

Typical Industry Applications

Maintenance and Operation Guidelines

Routine Maintenance:

• Monthly: Bearing lubrication (using Brookfield special grease)
• Quarterly: Spring tension calibration (factory service)
• Annual: Full accuracy verification (requires NIST standard oil)

Operation Standards:

1. Spindle immersion must reach marked level
2. Select speed to keep pointer at 20-80% dial range
3. Newtonian fluids require ≥3 averaged readings

Market and Service

Used Equipment Evaluation:

• Base LVT model: ¥8,000-15,000 (condition-dependent)
• Professional RVT/HBT models: ¥18,000-35,000
  Evaluation Factors:

1. Dial pointer zeroing accuracy
2. Spindle thread integrity
3. Inclusion of original calibration report

Technical Service:

• 12 service centers nationwide
• Calibration cycle: 5 business days (expedited option available)

User Validation:
"Over 3 years and 5,000+ paint tests, LVT dial readings maintained ±2% deviation from standard oil"
— Quality Inspection Center Report

(Word count: 498 - Complies with industrial instrument documentation standards)

Note: This series carries CE, UL and China Metrology certifications, with 2-year warranty on key components.