Double cylinder Ubbelohde viscometer constant temperature water bath

Double cylinder Ubbelohde viscometer constant temperature water bathMain technical specifications and parameters
1. Working power supply: AC 220V ± 10%, 50Hz ± 5%.
2. Heating power: two levels, 1000W+600W.
3. Mixing motor: power 6W; speed 1200r/min.
4. Temperature measurement range: room temperature to 100 ℃.
5. Temperature control accuracy: ± 0.1 ℃.
6. Thermostatic bath: capacity, 20L; form, with two layers of inner and outer cylinders (double cylinders).
7. Usage environment: ambient temperature -10 ℃~+35 ℃, relative humidity<85%.
8. Temperature sensor: Industrial platinum resistance, with a division number of Pt100.
9. Power consumption of the whole machine: not exceeding 1800W.

Double cylinder Ubbelohde viscometer constant temperature water bathworking conditions

1. The instrument should be placed on a flat and stable experimental platform.

2. The liquid measured by this instrument is a Newtonian liquid, and its viscosity is independent of shear stress and shear rate.

3. Within different testing temperature ranges, different constant temperature bath liquids should be used for the constant temperature bath.

4. When testing the sample, an appropriate capillary viscometer should be selected according to the experimental temperature. It is necessary to ensure that the flow time of the sample in the capillary is not less than 200 seconds, and the flow time in the capillary viscometer with an inner diameter of 0.4mm is not less than 350 seconds.

Preparation before testing

1. Before using this instrument, carefully read the user manual.

2. Carefully read the industry standard SY/T5561 "Technical Conditions for Petroleum Product Kinematic Viscosity Testers" of the People's Republic of Chinanational standardaccurateGB/T265 "Determination of Kinematic Viscosity of Petroleum Products and Algorithm for Dynamic Viscometers", understand and be familiar with the testing methods, procedures, and requirements outlined in the standard.

3. Prepare various testing instruments, materials, etc. for testing according to the requirements specified in the standard.

4. Check the working status of this instrument to ensure it meets the working environment and conditions specified in the manual.

5. Check the casing of this instrument, which must be in good grounding condition.