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pressure and temperature

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Madalyn Pagac

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3y ago

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What is the purpose of a compound gauge?

The compound gauge is an instrument to measure pressures, positive or negative.


What does a compound pressure gauge measure?

A compound pressure gauge measures both positive and negative pressures relative to atmospheric pressure. It typically consists of two pressure sensors, one for measuring positive pressure (above atmospheric pressure) and one for measuring negative pressure (below atmospheric pressure). This type of gauge is commonly used in applications where both types of pressure need to be monitored, such as in HVAC systems or industrial processes.


Difference between pressure gauge and manometer?

A pressure gauge measures pressure in a system relative to atmospheric pressure, displaying the reading in units such as psi or bar. A manometer measures pressure by balancing the weight of a liquid with the pressure being measured, often displaying pressure differentials in terms of inches or millimeters of the liquid column. In summary, a pressure gauge gives absolute pressure readings, while a manometer measures pressure differentials.


Difference between pressure gauge and vacuum gauge?

A pressure gauge measures the pressure of a fluid or gas relative to atmospheric pressure, while a vacuum gauge measures pressures below atmospheric pressure. Pressure gauges typically have a positive scale, while vacuum gauges have a negative scale. Both gauges provide crucial information for monitoring and controlling pressure systems.


What does a compound pressure gauge measure in?

A compound pressure gauge measures both positive and negative pressure in a system. Positive pressure is the pressure above atmospheric pressure, while negative pressure is the pressure below atmospheric pressure. This type of gauge is commonly used in applications where both types of pressure need to be monitored, such as in HVAC systems or industrial processes.


Is that the value for absolute pressure will always be greater than for gauge pressure?

No. We need to know exactly what is meant by gage here. A piston tyre gauge measures pressures relative to atmospheric. A mercury barometer measures absolute pressure. A gauge that involves uncoiling of a coiled tube will measure absolute pressure (it will have to be calibrated). But a manometer which is open to the atmosphere on one arm will measure pressures relative to atmospheric pressure so the real pressure is the two added together.


Difference between photohelic and magnahelic gauge?

A photohelic gauge measures and displays pressure differentials and can also control devices based on those readings. A magnahelic gauge, on the other hand, measures positive, negative, and differential pressures but does not have control capabilities.


What divice measures air pressures?

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What does a thermometer and a rain gauge measures?

A thermometer measures temperature, while a rain gauge measures the amount of precipitation (rain) that has fallen.


What does a rain gauge measures?

a rain gauge measures the amount of rain, snow, or any liquid that falls from the skyThe rain gauge measures the amount of water, snow or any liquid that falls from the sky, to view the water level


What measures snow?

A snow gauge measures snow.


How many pressure scales dose a compound gauge have?

A compound gauge typically has two pressure scales: one for measuring vacuum pressure (in inches of mercury or millibars) and another for measuring positive pressure (in pounds per square inch or bar). These dual scales allow the gauge to monitor both sub-atmospheric and atmospheric pressures. Some compound gauges may also feature additional scales for specific applications or units, but the standard is the two primary scales.