Although some believe that good repeatability is a measure of accuracy, this is a misconception. Repeatability is in no way an accuracy guarantee. Therefore, when considering a measurement device, if you see only a repeatability statement and no accuracy statement, be cautious and consider your application. Repeatability is the ability of a system or device […]
Cadillac Meter
The Benefits of Sub-Metering On College Campuses
College campuses can benefit from sub-metering from a business, engineering, and management perspective— all of which are vital to an institution’s sustainability. The full weight of these benefits can vary between small and larger schools. Small colleges will benefit from sub-metering simply as a way to reduce energy use and associated costs. The metered data […]
Piping Requirements For Flow Meter Installation
A distorted fluid velocity profile is one of the most common reasons for inaccurate flow meter readings. Swirls or other distortions in the flow are caused by the tees, elbows and valves that make piping systems functional. But, to keep your flow meter functional as well, there are some requirements regarding the fluid’s flow profile, […]
Metering A Heating System: Condensate Vs. Steam Mesurement
To calculate energy usage and loads for a heating system, the question is: Which side of the heating system should we measure to provide the most accurate and encompassing measurement results? The simple answer would be the steam side since this is the heating medium providing the energy to the point of use location. However, […]
Ultrasonic Vs. Magnetic Flow Meters
While selecting the proper flow meter technology for your system is critical, your ability to rely on the meter’s readings will depend more heavily on the application. Every meter technology will have its advantages and disadvantages, but it’s the nuances of your system and what is flowing through it that should garner the most attention. […]
Not All Flow Meters Are Created Equal! Part 2
Now that we have established why the flow meter is the most inaccurate component of the energy measurement system, what does this accuracy/inaccuracy really mean and how does it impact the measurement? Let’s start by defining measurement. What kind of accuracy is required to make a legitimate flow measurement? Let’s break this down into three […]
Why You’re Probably Overspending on Energy
You’re an engineer for a big company, university campus, or government agency. Your job is to identify and implement the best energy solutions for a pretty large geographic area. This means you need the right tools. Unfortunately, accuracy when it comes to billing is pretty subjective in this field. A number of factors weigh in […]