The dial viscometer is a common viscosity measuring instrument, suitable for measuring the viscosity of various liquids, including oils, resins, coatings, chemicals, etc. The following is a detailed introduction to the selection points and precautions of the dial viscometer:
select points
Measuring range: Different models of dial viscometers have different measuring ranges, usually expressed in viscosity units CPS (centipoise) or mPa·s (milliPascal second). Choosing the proper measuring range depends on the viscosity range of the liquid you want to measure, and you should choose a viscometer with the required viscosity range.
Accuracy and resolution: Accuracy refers to the error between the reading of the viscometer and the actual value, while resolution refers to the smallest unit of viscosity that the viscometer can measure. Generally, a high-precision viscometer has lower errors and higher resolution, thus providing more accurate measurement results.
Measuring Temperature: Viscosity is closely related to temperature, so choose a viscometer that fits the temperature range you need. Some dial viscometers have a built-in temperature control system that automatically controls the temperature during the measurement.
Appearance and size: Dial viscometers come in different shapes and sizes, so choose the one that fits the space and work environment you will be using. Some smaller models are suitable for field measurements, while larger models are suitable for laboratory and industrial applications.
Precautions
Calibration: Calibration is required before taking measurements with a dial viscometer. This can be done by using calibration fluids and following the calibration procedure provided by the manufacturer. The calibration process should be performed periodically to ensure the accuracy of the viscometer.
Cleaning: Dial viscometers need to be cleaned before and after use. Use suitable solvents or cleaning agents, do not use strong acids or alkaline substances for cleaning, to avoid damage to the viscometer.
Operating temperature: The sample needs to be heated or cooled to the proper operating temperature before measurements can be made with the dial viscometer. This can be done by heating or cooling the sample in a constant temperature Water Bath.
Measurement operation: When performing measurements, it is necessary to pay attention to the stability of the operation.
