Skip to Main Content
Added to cart.

Five Factors to Consider When Choosing a Pressure Controller

Five Factors to Consider When Choosing a Pressure Controller

When choosing a pressure controller for a lab, there are several details to consider. Here are five essential factors to help you determine the best equipment for your lab’s application.

Pressure Controllers in Labs

The goal is fast, accurate, and stable control for production testing to single or multiple pressure points. The best choice is a durable controller that can sustain precise and regular operation through repeated cycles. Choose a controller that fits your application and has a reputation for longevity.

When Is It Time to Replace?

Before we mention the five factors many times, it starts with the question, when is it time to replace a pressure controller?

  • If your pressure controller is obsolete and the manufacturer doesn’t support it.
  • It’s broken or not working, and you can’t repair it, or it is too expensive.
  • Does it still have the capability to provide value to your lab?

If you have answered yes to one or all of the above, then it is time to find better equipment for your lab.

Assess the Lab’s Workload

What is the workload like in your lab? Specifically, how much were you using the pressure controller? Is your workload the same as before, or has it increased? This will give you an idea of what you need in equipment.

Pressure Range

Evaluate the set of pressure ranges you will need to calibrate. The pressure controller you choose must be capable of controlling and measuring the entire span of your expected ranges. Ranges and pressure types will determine the complexity.

Pressure Type

Determine the type of pressure that needs to be calibrated: gauge, absolute, bidirectional, or differential. The choice of sensors within the calibrator must match these types or emulate the pressure types of the devices being calibrated.


Determine the accuracy and minimum acceptable test uncertainty ratio (TUR) for each range you need to calibrate. Choose a controller capable of calibrating each range and satisfying the requirements of the TUR. This can become complex with multiple ranges, accuracies, and pressure types.

Duty Cycle

Consider the duty cycle required for the controller. This is particularly important in a production environment requiring repeated cycling of pressure. Many controllers have Cycle Life Testing Performance Data that the manufacturer can provide on request.

Maintenance and Service 

While this is outside the top five factors, you will want to understand how easily your new purchase will keep up and running. Also, what does the servicing look like on the latest piece of equipment?

Find the Solution 

While we understand that it may be impossible to narrow the choice to a single product accurately, multiple products may fit within the specifications. If you are still trying to decide which pressure controller is best for your needs, SRP control systems Ltd can help you find the solution. We have over 40 years of experience providing products, services, measurement, and calibration solutions. Contact us today!

Background image