Pressure gauges are commonly used in various industrial and commercial settings to measure the pressure of gases or liquids. However, these devices are not immune to the effects of temperature, and their accuracy can be affected by changes in the ambient, process, or storage temperature. How are pressure gauges affected by temperature? In this article, we will break down these three types and look at the effects of temperature on pressure gauges.
How Ambient Temperature Affects Pressure Gauges
One of the most significant factors that can affect the accuracy of a pressure gauge is the ambient temperature. Ambient temperature is the temperature of the surrounding environment where the pressure gauge is being used.
Since ambient temperature affects the density of gases and liquids, it also affects the pressure being measured. As the temperature increases, the density of the gas or liquid decreases, causing the pressure to drop. On the other hand, as the temperature decreases, the density of the gas or liquid increases, causing the pressure to rise.
How Process Temperature Affects Pressure Gauges
In addition to ambient temperature, the process temperature can also affect how accurate your pressure gauge readings are. Process temperature refers to the temperature of the gas or liquid that is being measured by the pressure gauge.
If the process temperature goes up, it will cause the pressure to drop, resulting in a lower reading on the pressure gauge. Whereas, if the process temperature drops, it will cause the pressure to rise, resulting in a higher reading on the pressure gauge.
How Storage Temperature Affects Pressure Gauges
Another factor that can affect pressure gauge accuracy is the storage temperature. This refers to the temperature at which the pressure gauge is stored when it’s not in use. If the storage temperature is not properly controlled, it can cause the pressure gauge to become less accurate over time.
For example, if the pressure gauge is stored at a high temperature, it can cause the internal components of the device to expand, resulting in a higher reading on the pressure gauge. Conversely, if the pressure gauge is stored at a low temperature, it can cause the internal components of the device to contract, resulting in a lower reading on the pressure gauge.
Overall, pressure gauges are an important tool when it comes to monitoring and regulating pressure in various systems. Understanding how temperature changes can affect the accuracy of a pressure gauge is essential for ensuring accurate readings.
For over 60 years, Mid-West Instrument has been a leading provider of premium differential pressure gauges. Need help finding the right pressure gauge and equipment for your business? Reach out to us today to speak with one of our experienced professionals.