High Accuracy Test Pressure Gauges

What are Test Gauges and How Do They Work?

A test pressure gauge is typically a measuring device attached to an application or machine within industrial processes to monitor pressure levels, accuracy, efficiency and fluctuations. These gauges monitor the level and can be used to alert the end user to any changes which fall out of the pre-determined parameter. The display on the gauge can be either digital or mechanical dial. Dial displays typically use a bourbon tube to indicate the pressure level.

Test pressure gauges are used in demanding environments where very high or very low pressures are present.  They provide extremely high accuracy readings which are critical to the safety and efficiency of the application.

The bourbon tube inside the gauge measures the pressure by moving around in a rotational motion to indicate the pressure. The pointer on the dial moves around the calibrated scale on the gauge's face to display an accurate reading. It's important to calibrate the test pressure gauges at relevant frequencies to ensure they display precise measurements, which align with the actual pressure being tested.

Types of Calibration Gauges

• Digital - measures pressure by using electronic sensors and displays the readings digitally on the screen. These gauges usually have a higher accuracy and are deemed a more 'modern' solution.
  
  Our CPG1500 precision digital pressure gauge offers high accuracy classes only matched by digital calibrators.
   
• Mechanical - measures pressure using mechanical components such as diaphragms and bourdon tubes. These gauges are typically less precise compared to digital versions.
  
  Our 332.30 high quality test gauge has been specifically designed for precise measurements and is suited for calibration tasks.

How to Specify Critical Gauges

• Pressure Range - identify the range of pressure levels the gauge needs to operate in, ensure the gauge can clearly reach or read the required pressure level whether is extreme high or very low pressures.
   
• Accuracy of the gauge - ensure the desired accuracy levels or class can be achieved and any fluctuations/increments can be easily seen.
   
• Environment - understand the surrounding area to ensure gauge can withhold heat radiation and high or low temperatures within the operating area. Could the gauges be installed on machines which may cause vibrations?

In Action

For more information on how our standard pressure gauges work, please watch our intuitive video below: