Published 2024-11-22

Setting up ventilation is important to ensure a good indoor climate and to keep operating costs down. But, as many of us know, it is often a time-consuming process, especially when it comes to large systems where several technicians often have to work together to measure flow and pressure several times in different places in the buildings to achieve optimal ventilation adjustment.

Thanks to the Celsicom V600, these problems are a thing of the past. In fact, with the help of the meter, a ventilation technician can perform really big adjustment jobs all by himself.

Adjustment of ventilation with Celsicom V600

All you need to set airflows in a system is our new tuning instrument, an optional airflow meter and a mobile phone or tablet. Here is our step-by-step guide to setting up ventilation with the Celsicom V600:

• Remove the sliding cover of the Celsicom V600 and scan the QR code inside with a mobile/tablet
• Create an account on the Celsiview cloud service webpage that appears on the screen
• Add the Celsicom V600 and choose the instrument for your measurement
• Identify the weakest point of the ventilation system, i.e. your reference device
• Enter the K-factor and projected value for reference actuators and other actuators
• Connect the calibration instrument to the reference device and the measurement is underway.
• Celsicom V600 guides you through the entire proportional adjustment process
• The mobile/tablet displays the current adjustment values for each sensor
• If a pressure change occurs in the system, new values are calculated – in seconds!
• Finally, raise or lower the reference actuator to 100% (as designed) and the values of the other actuators will be automatically adjusted

“No need to go back and check measurements”

This is how ventilation adjustment works with Celsicom V600. One person who has discovered the advantages of the new adjustment instrument is ventilation technician Tor Halvorsen at VXPro AB. Tor has used the instrument for several large adjustment jobs and believes that it facilitates and improves his job in several respects.

– I don’t have to spend time doing my own calculations, nor do I have to go back and check the reference device. In the past, it often took at least three trips to get all the values right. Now I get it right straight away,” says Tor, adding that the Celsicom instrument makes him more efficient.

– It saves at least a third of the time. Up to half in some cases. Depending on the accessibility and complexity of the systems.

Impressively accurate alignment

In addition to the time savings, the Celsicom V600 and Celsiview allow Tor to perform large adjustments with impressive precision. He often exceeds the requirement of six percent accuracy in the adjustment between the sensors by far.

– “I often get down to three percent accuracy, which benefits everyone. The tenants get a comfortable indoor climate and the property owners lower energy consumption,” says Tor Halvorsen, who sees how the smart measuring instrument allows him to “do more in less time”.

– This is a great solution that gives me more capacity every day of the week!

Discover other Celsicom meter boxes

The Celsicom product family also offers measurement boxes for accurate measurement and analysis of other quantities such as temperature, humidity and differential pressure to ensure safe and optimal environments in many different industries.

Companies operating in sectors such as construction, real estate, moisture damage management and the food industry benefit greatly from Celsicom’s flexible and precise measurement boxes. Whether you need to ensure indoor air quality, monitor workplace conditions or meet critical environmental parameters, Celsicom can help you do so with the highest accuracy and reliability.

Curious about the user-friendly, reliable and versatile Celsicom? Read more here!

Published 2022-08-11

Operation technician Martin Lundin works with the indoor climate at the hospital in Västerås but also at the hospitals in Fagersta, Sala and Köping in Region Västmanland. His constant challenge is to create comfortable indoor environments for both healthcare professionals and patients while keeping energy consumption low.

To help him in his daily work, Martin Lundin often uses the smart multi-instrument testo 400. Nordtec caught up with Martin to hear about his impressions and experiences with this climate meter.

Can you tell us a bit about your work?
– I do everything in the field of indoor climate and check ventilation flows and also perform some minor adjustments. However, as we have about 400 000 square meters to cover in our premises, much of this work is done by hired contractors.

– I am also an energy coordinator. In this role, I work actively to reduce energy consumption, which is measured in kilowatt hours per square meter.

– Also, you should not feel that there are temperature differences between different hospital departments, but it can be difficult to find that balance. However, the instrument is great for walking around and measuring temperatures and also differential pressure between different corridors, i.e., the air conditioning system. over- or under-pressure to ensure the right balance of ventilation systems.

– I also work on preventive maintenance. To enable my staff to easily troubleshoot when we have problems with heating or ventilation, I have equipped them with a bag containing the testo 440 multi-instrument and various accessories. Good work always requires good instruments and tools.

Do you measure both in premises and ventilation ducts?
– Yes, exactly. I measure temperature, humidity and airflow in ducts and premises. When measuring flow in canals, I sometimes have to drill a hole and measure at several points in a cross section of the canal area.

You mean so-called grid measurement?
– Yes, that’s right. That’s where the instrument is fantastic. You specify whether it is a square channel, for example, enter the dimensions and then take a number of measurement points. The instrument then automatically calculates the airflow.

Are you satisfied with the instrument?
– I’m super happy. I had a testo 440 dP before, but needed an instrument with better pressure measurement accuracy and the ability to log trends. There are so many more possibilities with the testo 400.

Do you feel unfamiliar with a touch screen on a measuring instrument?
– No, given today’s technology and how accustomed we are to mobile phones, it was quite natural. On the contrary, it was very easy to get started with the testo 400.

How do you analyze the measurement results?
– I usually connect the instrument to the computer and use the program testo DataControl to analyze the values. Then I get reports that are very useful where I can also attach pictures. I think that’s really good.

Can you tell us about a particularly interesting measurement mission?
– Yes, in Sala hospital we changed the control equipment on an old unit to get better control of the supply air temperature. But initially there was too much alternation between high and low temperatures.

– Then we were able to use the 400, because we could connect both before and after the heating coil. The controller’s P and I times were changed and we could continuously see how it calmed down or if the values jumped. You could see when it started to oscillate. That’s where the trend management in testo 400 is fantastic.

– Then I am currently working on mapping the indoor temperatures of the entire hospital, in all departments at different outdoor temperatures.

That sounds like a big job?
– Yes, our client requires that energy consumption be reduced, so we have a huge job ahead of us to get the right curves, especially on the heating side and to have the right temperature in the supply air.

What did you use before getting the testo 400?
– Previously, as I said, I had a testo 440. But I needed better accuracy of the differential pressure measurement at low air flows. Also, I like to see trends, which cannot be done in the same way with this instrument.

What kind of sensors do you use?
– I have a small hot wire sensor that is always in the instrument. Then I have a digital sensor that measures both moisture and temperature. These values are transmitted to the instrument via Bluetooth. Both these sensors also work with the old testo 440. Then I have a clamp-on sensor for pipe temperature measurement as well.

What did you use before getting the testo 400?
– Previously, as I said, I had a testo 440. But I needed better accuracy of the differential pressure measurement at low air flows. Also, I like to see trends, which cannot be done in the same way with this instrument.

Have you needed support from us to get started?
– No, I think it has worked well. The only thing that happened was that the pipe temperature sensor broke on one occasion.

Do you also use data loggers to see trends over time?
– Yes, I do if I am unsure and there are major problems that are not immediately apparent. Then I have to log for a longer period of time and analyze the anomalous trends afterwards.

Do you have any requests, anything you would like to see in the instrument?

– I don’t know… I haven’t used exactly all the features yet, but right now I’m just very happy with the instrument!

– If one could wish freely, it would have been good to have a socket at the top of the front for a hot wire sensor. He often holds the instrument upside down.

– Then it would be good if you could make a few more pre-settings in the instrument via the analysis program testo DataControl.