Dual Bath Kinematic Viscometer

Introduction

A dual bath kinematic viscometer is an instrument used to measure the kinematic viscosity of the petroleum products and the liquids, with the two temperature baths, and it is used in the petroleum, the lubricant, the fuel, and the quality control industries. The kinematic viscometer measures the kinematic viscosity by the measurement of the time for the sample to flow through a calibrated capillary under the gravity at a specified temperature, following the standard test methods, such as the ASTM D445 and the ISO 3104, and the dual bath configuration allows the measurement at the two temperatures simultaneously; the dual bath kinematic viscometer consists of the two temperature baths with the glass viscometers, a temperature control system, a timing device, and the controls, and it provides the kinematic viscosity, expressed in centistokes, with features such as the temperature control; the dual bath kinematic viscometer is used for the measurement of the kinematic viscosity of the lubricating oils, the fuels, and the other petroleum products, for the quality control, for the assessment of the flow properties, and for many other applications, and it is an essential instrument for the viscosity testing. Dual bath kinematic viscometers are used in the petroleum industry, in the lubricant industry, in the fuel industry, in the laboratories, and for many other applications. With their dual baths, dual bath kinematic viscometers are essential for the viscosity measurement.

Dual-L2ath Kinematic Viscometer T-L2KV-S2100

Dual-Bath Kinematic Viscometer has 8 liquid bath holes for efficient sample testing. It features dual independent baths for simultaneous validation. Equipped with digital controls for stab...

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Standards

ASTM E2488-09(2014)-Standard Guide for the Preparation and Evaluation of Liquid Baths Used for Temperature Calibration by Comparison

Complies with the above standards, but is not limited to them.

Features

1. Dual bath kinematic viscometer for measuring viscosity of petroleum products and oils.

2. Two independent temperature baths for simultaneous testing at different temperatures.

3. Precision temperature control with uniform bath circulation for accurate results.

4. Suitable for petroleum, lubricant, chemical and quality control laboratories.

5. Includes viscometer tubes, bath, temperature control and timing system.

FAQ

Q1: What testing scenarios is this instrument mainly applied to?

A: The dual bath kinematic viscometer is used in petroleum refineries, lubricant laboratories, fuel testing facilities, chemical plants and third-party testing organizations to measure the kinematic viscosity of petroleum products, lubricating oils, fuels and other liquids at specified temperatures. The dual bath design allows simultaneous testing at two different temperatures, improving throughput and enabling viscosity index calculation which requires measurements at both 40 and 100 degrees Celsius. It supports product specification compliance, refinery process control, lubricant formulation evaluation, used oil condition monitoring and quality certification. Kinematic viscosity is a fundamental property affecting fuel atomization, lubricant film formation, pumpability and product performance, making this instrument essential for petroleum and lubricant quality control worldwide.

Q2: What standards does the instrument comply with?

A: The test method follows ASTM D445 for kinematic viscosity, ISO 3104 for petroleum products kinematic viscosity, and the corresponding GB/T 265 method. Viscosity index calculation follows ASTM D2270 and ISO 2909. The instrument complies with relevant laboratory safety standards. Viscometer tubes should be calibrated and traceable to international standards.

Q3: What is the warranty period for the whole machine and key components?

A: The baths, heating/cooling systems, controller and timer are covered by a 12-month warranty. Viscometer tubes, thermometers and seals are consumables or accessories excluded from warranty. Damage from improper oil use, overheating or unauthorized repair is excluded.

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained laboratory personnel familiar with viscosity testing and viscometer tube handling. We provide an operation manual and remote guidance. Proper tube selection, sample preparation, temperature equilibration and timing technique are critical for accurate results.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Bath temperature calibration against a reference thermometer is recommended every 6-12 months. Viscometer tube constants should be verified periodically with certified viscosity reference oils. Timer accuracy can be checked annually. Full method verification with reference oils is recommended for accredited laboratories.

Q7: Are supporting consumables universal?

A: Viscometer tubes, thermometers and bath fluid are available from laboratory suppliers, though tube constants should match the sample viscosity range. Long-term consumable cost is moderate, with tube replacement being the main recurring item.

Q8: Can I customize parameters or supporting accessories?

A: Customization includes bath temperature range, number of tube positions, automation level and timer type. Additional viscometer tube sets and accessories can be ordered separately. Custom orders extend delivery lead-time.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes the viscometer, tubes and accessories with an operation manual. Remote commissioning guidance is provided. On-site installation and training are not included for standard orders but can be arranged for laboratory setup projects.

Q10: What types of samples are compatible with this equipment?

A: The viscometer handles petroleum products, lubricants, fuels and other Newtonian liquids within the viscosity and temperature range. Non-Newtonian fluids may require different test methods. Highly volatile samples require sealed tubes or special handling. Users should select the appropriate viscometer tube constant for the expected viscosity, ensure proper sample cleaning and drying, follow temperature equilibration times, and calculate results with the correct tube constant and temperature correction per the standard method.