What is the working principle of constant temperature Water Bath?

What is a constant temperature Water Bath? Constant temperature Water Bath is a laboratory equipment used to keep water at a certain temperature in the laboratory to cultivate samples. Water baths for laboratory equipment always have a digital interface to allow the user to set the desired temperature. Laboratory Water Baths are the preferred heat source for heating flammable chemicals rather than open flames to prevent ignition.

What is the function of the laboratory Water Bath?

Applications for laboratory equipment Water Baths include heating of reagents, melting of substrates or incubation of cell cultures, and use to enable certain chemical reactions to occur at elevated temperatures. Since nearly all laboratory Water Baths have a digital interface that allows the user to set the desired temperature, usually, an indicator light will come on to indicate that the Water Bath is working. Once the correct temperature is reached, the laboratory Water Bath is turned on and off to maintain a constant temperature.

Some Water Baths, known as shaking Water Baths, offer additional controls that allow the user to control the speed and frequency of movements. Primarily used to mix two substances together, a vibrating Water Bath can be used instead of a standard Water Bath by turning off the vibration mechanism.

Water baths for laboratory equipment do not necessarily contain water. The fluid used depends on a variety of factors, including the desired temperature range and desired viscosity. Oil is sometimes used instead of water in a Water Bath. Sinks can be dangerous when working with flammable substances, such as oil, so safety precautions need to be taken, including using the sink on a stable, level surface.

Types of Laboratory Water Baths

1. Circulating Water Baths are ideal for applications where temperature uniformity is of paramount importance, such as enzyme and serology experiments. Water circulates efficiently throughout the bath, resulting in a more even temperature.

2. Non-circulating Water Baths mainly rely on convection rather than uniform heating of water. Therefore, it is less accurate in terms of temperature control. Additionally, there are add-ons that provide agitation for non-circulating baths for more even heat transfer.

3. The shaking Water Bath has an additional shaking control function, which can shake the liquid. This vibration function can be turned on or off. In microbiological practice, constant shaking keeps liquid-growing cell cultures constantly mixed with air.