If we enter a grocer’s shop to purchase a piece of cheese, and we can select between two of the same type with approximately the same characteristics, we tend to take the cheaper one. If the expensive one fulfills an additional requirement and provides a benefit, the price could be seen as justified and we are willing to pay the higher price. When talking about cheese, the benefit is visible for us right away: either it has a special rind, a higher ripeness, it is organic, made from goat milk etc. – the benefits are just so obvious!
But when we are close to making an investment for something we are not so familiar with, it is often difficult to recognize the benefits in comparison to the initial cost. At the same time, for large-scale investments the considerations about the benefits and payback are much more relevant. For this reason, I have put together an ROI calculator showing you how much time and money you save during your everyday work if you replace your conventional density measuring methods with density measurement by a digital density meter.
And, are you surprised?
Now you even know what’s your budget for investing in a digital density meter!
And here are the 5 main factors which have an enormous influence on the savings of time and effort when changing to a digital device:
#1: Quick, automated measuring procedure
Temperature regulation via a water bath, calculations and manual corrections via a table – these are all things of the past. Depending on the density meter you choose, the temperature of the sample is either exactly regulated via Peltier elements or the temperature influence on the result is compensated automatically by software. The measurement itself is done in a few seconds and the result is shown as density or in the concentration unit of your choice. If you have to handle many different samples a day, a sample changer will process the samples automatically and you can even walk away while the instrument is doing its job.
#2: Automatic documentation of results
The samples are named according to their product type or sampling location and results are stored in the instrument’s memory, allocated to the respective sample name. Many benchtop instruments already have a camera and automatic bubble detection, so if you want to leave the density meter alone with a carousel of samples to be measured, you can check afterwards whether the density meter detected any filling errors or you can see any bubbles on the camera images stored together with the results.
#3: Less sample amount
Especially when handling samples that cannot be poured back into the storage container to avoid microbiological contamination or when dealing with expensive samples, the sample amount is one of the decisive factors when making the decision to change from analog to digital methods. A digital density meter will only require around 1 to 2 milliliters of sample for a measurement. If you use a portable instrument or you have a sample changer connected, you also have to consider the sample present in the hose connections. However, the sample volume required is considerably lower.
#4: No repeated measurements due to user errors
Users of hydrometers who have the challenge to measure many samples a day (e.g. in wineries, during the fermentation period of the wine) report about regular reading or writing mistakes when taking written notes. If they are not sure, they repeat the measurement to be on the safe side. As digital density meters handle everything automatically, the user influence and danger of making mistakes is reduced to a minimum. The degree of automation can be chosen by the user based on personal requirements and preferences.
#5: Quick cleaning with less solvents
Cleaning of digital density meters is done with a few milliliters of suitable solvent, filled into a syringe. Moving the plunger back and forth helps to increase the cleaning efficiency – mechanical action is not allowed. For hydrometers and pycnometers, in contrast, a lot of cleaning agent is required to get the equipment clean again.
If you just acquired the taste for a digital density meter, check out the 10 main reasons to change from analog to digital density measurement.
Would you like a quotation for a digital density meter tailored to your applications and needs?