Kinematic Viscometer LKV-T2015

Introduction

Kinematic Viscometer up to 4 samples simultaneously, ensuring efficient testing in laboratory environments. With a high-performance 6W stirring motor, it provides uniform temperature distribution across the bath. This instrument supports six capillary viscometers, offering flexibility for diverse testing needs. With a broad timing range, it ensures precise time measurements essential for reliable viscosity determination. In addition, it a reliable and space-efficient solution for viscosity analysis in research and industrial laboratories.

This petroleum testing is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Our Kinematic Viscometer  is an indispensable tool for laboratories engaged in fluid dynamics and material properties analysis. It is widely used for determining the density of crude oil and petroleum-based liquids.

Specifications

Ambient temperature	-10°C to 35°C
Relative humidity	≤ 85 %
Capillary viscometer (Pinkevitch viscometer)	6 pieces in total
Stirring motor	6 W, 1200 rpm
Sample quantity	4 pieces at the same time
Measurement range	Ambient temperature to 100 °C
Bath cubage	20 L
Temperature controlling accuracy	± 0.1 °C
Timing range	0.0 s to 9999.9 s
Timing accuracy	≤ ± 0.05 % in 60 min
Inner capillary viscometer diameters	0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm
Power supply	AC (220±10%) V, 50Hz
Total power consumption	≤1800W
Net Dimension	530mm × 400mm × 670mm
Gross Dimension	560mm × 530mm × 670mm
Net weight	22 kg
Gross Weight	36 kg

Features

Multiple sample measurement

Platinum temperature sensor

Electric stirrer motor

Additional timing device

technology

Fully automatic

FAQs

1. How should a user prepare samples to get reliable viscosity readings with the Kinematic Viscometer ?

It recommends that the sample for the Kinematic Viscometer should be transparent, homogeneous, and free of suspended solids, as such impurities can clog the capillary and distort flow time. The sample should be equilibrated to the intended testing temperature or preconditioned if it is temperature-sensitive. Air bubbles must be avoided during loading, and filtration through an appropriate pore size is advised for samples containing fine sediments. However, over-handling should be avoided, as it can alter fluid properties. It delivers optimal accuracy when sample volume and preparation steps are standardized under strict SOPs.

2. Is it possible for users to test non-petroleum fluids with the Kinematic Viscometer , such as food oils or esters?

The Kinematic Viscometer is suitable for testing a variety of non-petroleum fluids including bio-based esters, vegetable oils, synthetic lubricants, and silicone oils, provided these fluids are Newtonian, transparent, and compatible with glass capillaries. These materials may require modified cleaning protocols due to their differing volatility or oxidation sensitivity. It is important to ensure they do not interact adversely with the bath fluid or cause residual buildup. It should be calibrated using viscosity standards that closely match the test fluid’s viscosity range to ensure result accuracy.

3. How should users clean and maintain the capillary tubes in the Kinematic Viscometer to prevent contamination or blockage?

Kinematic Viscometer requires capillaries to be thoroughly cleaned after each test using solvents that match the sample type and do not damage the glass. After cleaning, the tubes should be dried completely to prevent dilution of subsequent samples. Abrasive cleaning is discouraged; instead, ultrasonic baths or solvent flushing should be used when needed. Users should log capillary usage and check calibration constants periodically. Any signs of flow irregularity, residue, or cloudiness indicate the need for inspection, requalification, or replacement to maintain the integrity of readings.

4. How should users deal with inconsistent readings while switching capillary tubes on the Kinematic Viscometer ?

The Kinematic Viscometer includes a set of 11 capillaries, each with unique flow characteristics and calibration coefficients. When switching tubes, users must ensure that the correct calibration constant is selected or input into the system before testing begins. Performing a verification test with a known reference fluid after installing a new tube can help confirm measurement accuracy. Inconsistent results may also indicate physical issues such as chips, obstructions, or incomplete cleaning. Training on careful handling and storage of capillaries reduces measurement errors during tube changes.

5. What are the common user errors that could affect test accuracy on the Kinematic Viscometer ?

It Kinematic Viscometer can produce highly precise viscosity measurements, but several user errors can compromise accuracy. These include selecting an incorrect capillary tube for the sample's viscosity, not cleaning or drying the tube properly, and starting tests before thermal equilibrium is achieved. Operating the unit with degraded bath fluid or failing to regularly calibrate with reference standards can also cause drift in results. To avoid these issues, we advise users to follow SOPs rigorously, maintain regular calibration schedules, and ensure operators receive proper training in instrument use and maintenance.