Model: KR-KV57

The fully automatic kinematic viscosity tester is designed and manufactured according to the requirements specified in GB/T265 Petroleum products – Determination of kinematic viscosity and calculation of dynamic viscosity and ASTM D445. The instrument measures the kinematic viscosity of transparent and opaque liquids including crude oil, light and heavy fuel oil, lubricating oil, additives and waste oil. It is used in electric power, petroleum, chemical industry, commodity inspection, scientific research and other sectors.

Principle

The instrument loads the sample into the ubbelohde viscometer, the instrument heats the constant temperature bath to the set temperature and maintains it constant according to the parameter settings. When the temperature reaches equilibrium, the instrument automatically starts the test, carries out a series of samples extraction, and automatically detects the sample fall back time, then automatically calculates the test results after the test is completed, and automatically cleans the viscosity tube, and the test is over.

Functional features

Technical parameters

Ordering Guide

Model: KR-KV58

The fully automatic kinematic viscosity tester is designed and manufactured according to the requirements specified in ASTM D7279-2018 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids by Automated Houillon Viscometer and NB SH/T 0956-2017 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids by Automated folding tube type Viscometer. The instrument measures the kinematic viscosity of transparent and opaque liquids including crude oil, light and heavy fuel oil, lubricating oil, additives and waste oil. It is used in electric power, petroleum, chemical industry, commodity inspection, scientific research and other departments.

Principle

The instrument heats the constant temperature bath to the set temperature and maintains it constant according to the parameter settings. The sample is injected into the folded tube viscometer, and the falling time of the sample is automatically detected. After the test is completed, the instrument automatically calculates, stores and prints the test results.

Functional features

Technical parameters

Ordering guide

Model No. : KR12D

The KR12D automatic constant temperature petroleum density meter is suitable for measuring the density and relative density of liquids. This method measures the density of liquids according to the principle of different oscillation frequencies when the double U-shaped tubes are filled with different media. It conforms to GB/T2013-2010 and GB/T29617- 2013 and SH/T0604, ASTMD4052. After pumping the liquid to be tested into the resonant cylinder sensor, the single-chip microcomputer will process the measurement data and automatically measure the density value of the petroleum product. It is composed of double tuning fork density sensor, vibrating tube circuit, temperature measuring circuit, CPU, display, constant temperature bath, liquid inlet pump and control panel. This liquid densitometer can be widely used to measure the density of various liquids, and with different concentration conversion software, it can also directly read the concentration value of the corresponding liquid, such as alcohol. Through the processing of the single-chip software, the volume concentration data can be directly read , The test is more convenient.

Performance characteristics

1. Constant temperature control: Because the density of the liquid is greatly affected by temperature, the density of the liquid detected at the real-time temperature should be converted to the density of the liquid at 20°C. This instrument is controlled by a constant temperature bath. The sensor and its components and sample liquid are sealed in the constant temperature bath. The temperature of the oscillating tube (sample liquid) is detected by the temperature sensor, and the electronic components are controlled by the single-chip microcomputer to cool or heat to ensure the constant temperature bath. The temperature is stable within the range of 20℃±0.1℃. This not only solves the troubles and errors caused by conversion, but also ensures the measurement accuracy, stability and repeatability of the instrument (the constant temperature value can be customized according to user requirements).
2. Directly display the density value of the liquid at 20°C, and display the temperature: the oscillation frequency of the sensor is detected by the single-chip microcomputer, and the mathematical model of the relationship between the sensor frequency and the density of the liquid is used to obtain the density value of the liquid, and then perform floating point calculations. In the operation process, no additional error will be caused due to insufficient operation digits, and the accuracy of the measurement result is guaranteed. The density value calculated by the single-chip microcomputer is displayed through five digits, and there is a temperature display window.
3. Automatic sampling: The single-chip microcomputer controls the stepping motor to drive the peristaltic pump to suck samples, which improves the degree of automation of the product.
4. Acid and alkali resistant pipelines: all the pipelines that are in direct contact with liquids are imported acid and alkali resistant pipes to ensure that the instrument can measure acid and alkali solutions.
5. Data storage and transmission: Built-in storage chip, can store 80 groups of test data, and can be recalled and deleted. It can be connected to the computer through the 232 interface according to user requirements (customized).
6. Calibration function: When the instrument is not used for a long time, it will drift. This instrument can use 20 ℃ pure water as a standard to calibrate the instrument. This is a function that the glass density meter cannot achieve.

The main technical parameters

Model: KR-KV806

The method is to measure the time when a certain volume of liquid flows under gravity through a calibrated glass capillary viscometer at a constant temperature, and the capillary constant of the viscometer multiplied by the flow time is the kinematic viscosity of liquid at that temperature.

KR-KV806 type kinematic viscosity tester is suitable for “GB265 petroleum product kinematic viscosity measurement method”, ASTM D445 and other standards. It has been widely used in electric oil, electric power, chemical, railway, scientific research and other industries.

Main Features:

1. It adopts color LCD touch screen to display the working status of the instrument, such as temperature, time and parameters.

2. 8 viscometer testing holes design, unique modular technology, can be measured regardless of low viscosity or high viscosity range.

3. Using a new temperature sensor and temperature control algorithm, display resolution of 0.01 ° C, temperature control accuracy ± 0.02 ° C.

4. The instrument automatically calculates the kinematic viscosity value and viscosity index of the product, and automatically prints and stores the measurement result.

5. Double glass cylinder design, can carry out the kinematic viscosity test under high and low temperature conditions at the same time, and automatically calculate and print the viscosity index value of the product.

6. 0.1 second to 999.9 seconds timing, room temperature – 100.00 degrees temperature range can be set arbitrarily.

7. The heater and other components are made of stainless steel, corrosion-resistant and durable, easy to observe.

8. The capillary meter card adopts three-point vertical type, which is flexible and convenient to operate, and the clamping is reliable.

Performance Standard:

GB265, ASTM D445, etc.

Display mode: 10-inch color LCD display

Temperature control range: arbitrarily set from room temperature to 100 °C

Temperature control accuracy: ±0.01°C

Timing accuracy: ±0.1S

Timing range: 0.1 seconds – 999.9 seconds

Thermostatic bathtub: 250×250mm double layer

Printer: Low-power thermal printer, paper width 56mm

Temperature measuring element: Imported precision platinum resistance

Stirring speed: 1520 rpm

Maximum power: 1800W

Operating environment:

Ambient temperature 15-35 °C

Ambient humidity less than 85%

Power supply: AC220V±10% 50Hz

Maximum size: 560mm*370mm*520mm

Weight:20Kg