Kinematic Viscometer LKV-T2011

Introduction

Kinematic Viscometer is essentially used for measuring the viscosity of fluids with high precision. It operates efficiently within an ambient temperature range of -10°C to 35°C. Can tolerate relative humidity levels up to 85%. The temperature of the sample is maintained with an impressive accuracy of ±0.1°C. Features a two-layer water bath system, which aids in maintaining a stable thermal environment. An electric stirring device capable of reaching 1200 rpm, ensures consistent fluid mixing.

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

Kinematic Viscometer is used to measure the viscosity of lubricants and oils in automotive and industrial applications, ensuring proper performance and efficiency. It is also essential in quality control and research laboratories for characterizing the flow properties of various fluids.

Specifications

Ambient temperature	-10°C to 35°C
Relative humidity	≤ 85 %
Capillary viscometer	11 pieces
Stirring motor	6 W, 1200 rpm
Temperature controlling accuracy	± 0.1 °C
Constant temperature bath	20 L; two layers water bath
Temperature sensor	Industrial platinum resistance; Pt100
Inner capillary viscometer diameters	0.4, 0.6, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 3.5 and 4.0 mm respectively (inner diameters of 5.0 and 6.0mm are optional)
Packing Dimension	62 * 49* 67 cm
Gross Weight	25Kg

Features

temperature controller

Platinum resistance temperature sensor

Two-layer water bath system

Electric stirring device

Convenient to operate

Fast response

FAQs

1. How should we clean the viscometer tubes after using the Kinematic Viscometer ?

The tubes of Kinematic Viscometer must be cleaned thoroughly after each test to prevent contamination and residue buildup. First, drain the remaining sample and rinse the tube with a suitable solvent that effectively dissolves the tested fluid. Then, use filtered air or nitrogen to dry the tube completely, ensuring no moisture remains. For best results, cleaning should be done immediately after testing before the sample begins to dry inside the tube. We recommend consistent cleaning as a critical step in maintaining precision for all future viscosity measurements.

2. How should we choose the right viscometer tube for the Kinematic Viscometer ?

Kinematic Viscometer includes multiple tubes to cover a wide range of viscosities, and selecting the correct one depends on the sample’s expected viscosity. The aim is to achieve a flow time between 200 and 1,000 seconds for reliable results, which may require choosing a smaller or larger diameter tube depending on how fast the sample flows. If the sample flows too quickly, a narrower tube should be used; if it flows too slowly, a wider tube is preferred. Many labs begin with a mid-range tube and adjust based on trial results. The calibration constant of the selected tube must be known to calculate the final kinematic viscosity value accurately.

3. How should we store the tubes of Kinematic Viscometer ?

It recommends storing Kinematic Viscometer tubes in a clean and padded rack or box to avoid damage and dust. Don’t let the tubes touch hard surfaces or sharp tools, as they can crack or scratch easily. Label each tube and keep a record of its calibration and use. Tubes should be checked and recalibrated from time to time using certified reference oils. Good storage and careful handling help keep your tests accurate over time.

4. How can a lab validate that the Kinematic Viscometer is operating correctly over time?

The Kinematic Viscometer should be checked regularly by measuring known reference oils and confirming the temperature is accurate. If the test results are inconsistent, inspect the heater, stirrer, and temperature sensor for any issues. Keep a written log of test data like bath temperature, timing, and results to track performance. This helps catch problems early and keeps your test process reliable. We also suggest yearly calibration by a certified service.

5. What are the common errors users might face during a viscosity test using the Kinematic Viscometer , and how can they be avoided?

Kinematic Viscometer may give wrong results if the bath isn’t at the correct temperature, if tubes are dirty, or if there are bubbles in the fluid. Always wait for the bath to reach the set temperature and double-check it with another thermometer if needed. Make sure the tube is clean, dry, and bubble-free before testing. Use a digital stopwatch to measure the flow time carefully. Following the test steps properly helps you get accurate and repeatable results.