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How To Select a Pressure Gauge and Keep It Well Calibrated

I’ll cut to the chase. If you follow these tips, you can rest assured that you will keep your pressure gauge calibrated at all times. But you know what? I don’t care!

Calibrating a pressure gauge is not a one time job that can be forgotten about as it requires regular calibration. The pressure gauge tends to waver from its specified range and starts to give false readings that affect the quality and safety leading to false readings.

How Frequently Should My Pressure Gauge be Calibrated?

Pressure gauge calibration helps in ensuring that your instruments are all running and functioning as per their designation, resulting in accurate results. Regular and proper calibration is particularly important in the food and pharma sectors as proper calibration is part of quality assurance and compliance requirements.

Pressure gauge calibration is important but you need to know when and how often you need to calibrate your gauge. The two most important factors that affect your pressure gauge are its stability, and its application.

3 Things to Consider when Calibrating Your Pressure Gauge

Manufacturer’s Recommendations

Follow the manufacturer’s guidelines on how to calibrate your instruments and how often calibrations should happen. The chances are that your equipment will usually come with a data sheet that holds the stability specifications that should occur between the different calibration intervals, take these into account while setting a schedule.


Critical Locations

Instruments which are used to measure the pressure changes in economically important locations may need to be calibrated more often. For instance, pressure transducers located near volatile materials or exposed to environmental changes should be calibrated more often.


Installations or Changes

Always calibrate your equipment directly after having it installed as well as when you make any changes to the installation location.

7 Tips for Selecting Your Pressure Gauge

Gauge Accuracy

The accuracy of the pressure gauge is defined either as a percentage of a full-scale range or a percent of the span. The better the accuracy of the gauge, the costlier it will be, which is why the application of the gauge needs to be carefully considered when deciding the level of the accuracy. This use tends to vary from industry to industry.


Mounting

You need to bear the connection location in mind when you select your pressure gauge. There are quite a lot of mounting options that are available. Some of these options are:

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    Remote walls/ low-volume connect surface mount
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    Back connect panel mounting
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    Direct stem mount lower connect
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    For panel mounting:                                                       Panel hole front flange mount back connect                             Panel hole U-clamp flush mounting back connect

Range

It is important that you choose a pressure range that is roughly twice the average operating pressure. Make sure that the maximum operating pressure does not surpass 75% of full range as this may lead to fatigue failure of the pressure sensor inside the gauge. If there should happen to be pulsation during the process then the operating pressure should not surpass 50%.



Display Type

Pressure gauges are made in two designs which are analogue and digital displays. The traditional analogue display has been the most commonly used but the digital display is rapidly catching up. The application of the gauge usually tends to determine what kind of display is needed.



Connection Size

Pressure gauges are available in both the bottom and back connections. The pressure gauges are available with a number of connections which include NPT, DIN, JUS, BSP and SAE. The most widely used connection sizes are ¼” NPT and ½” NPT. Consider the following factors when you are choosing a gauge:

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    Process pressures
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    Gauge size and weight
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    Space limitations
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    Leak integrity
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    Past experiences with gauges, if any

Environment

The environmental factors that usually have to be considered when choosing your pressure gauge is the temperature in the area where it will be used. Here are some other factors that should be kept in mind:

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    Air-borne particulate
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    Humidity
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    Water
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    Chemicals
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    Condensation
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    Ambient temperature

Gauge Size

The dials of the pressure gauges range from 1.5’ to 16’ in diameter. The size of the dial is usually determined by the ease with which the gauge can be read, accuracy requirements and space limitations.

Understanding how to calibrate your pressure sensor is the first step towards preventing measurement inaccuracies, damage and safety issues.

 Eward Simpson 

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Edward Simpson works for RS Calibration Services and has a knack for finding faults in machines and does not rest until they are rectified to perfection. He lives in Pleasanton, CA and loves to write about how machines work and about the importance of proper care and calibration of equipment. When he's not working or writing, he loves to run to stay fit.

Add Depth To Your Interiors With Subtle Colors & Unique Furniture

Want to create jaw-dropping interiors? Well, then you need to explore your creative skills and put all the efforts to add depth to your interiors. Designing beautiful interiors require sheer knowledge of furniture trends and ways of making them work for you.

It’s completely true that you can’t just start implementing all those ideas that come from interior designers because you have to keep the availability of the space in mind. Home decor ideas that suit requirement of lavish houses might not be the best ones for you if you live in a small apartment. Similarly, home decor ideas that fulfill the requirements of small houses, may not be effective for those who are blessed with large abodes.

Here are some of the important tips related to color, texture, and furniture pieces that you must consider while decorating your home.

How to Renovate a House with Waterproofing and Energy Preserving

If you are planning on building a house or renovating your home for some reason, it would be wise to think about the future and consider how you could make your home more energy-efficient and protect it from damage caused by water. The currently available technologies can dramatically reduce the energy consumption of your property and prevent water from penetrating into your home, causing moisture, mold and more severe issues.

Here are some ways in which you can renovate a house with waterproofing and energy preserving a long-term success.

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How to Turn Your Patio into a Family Sanctuary

If you have a patio, you can consider yourself blessed in many ways. Unlike porches, patios are much bigger, more versatile and overall nicer structures that can have a lot of different purposes.

Whether your patio is small or large, there is always something you can add to it in order to make it even better and more functional than it already is. This time, we will focus on turning it into a perfect family sanctuary where you can all enjoy the upcoming warm days.

How to Design Shade Garden: All You Need To Know

Most gardens require six hours of direct sunlight per day to grow. The ones that get less than that are called shade gardens. Things get more complicated than that when you get into details because some gardens have plenty of sunlight, but they are also filled with large trees that block the view during most of the day. These are sometimes called dappled shade gardens.

Don’t bother yourself with these technicalities when designing your garden. Have in mind that the time and intensity of the sunlight will change during the year, as your plants grow and develop.