Differential pressure, dual
Two zone pairs in one sensor
Measures the pressure difference between two pairs of zones at once. Used for pressure cascades, where the air must move in one specific direction through several rooms.
What is Differential pressure, dual, and how does it work?
Air moves from high to low pressure. If a cleanroom is kept at positive pressure relative to the corridor outside, air flows out through gaps and doors instead of in, and particles do not follow. If the pressure difference drops, the flow reverses and the protection disappears without anyone being able to see it.
The dual sensor has two channels and therefore measures two zone pairs at the same time. A cascade with four zones can then be followed with two sensors instead of four, and all measurements appear in the same graph.
Specifications
Measures
Differential pressure, 2 channels
Zone pairs
Two at once
Connects to
Cobalt X
Measuring range
See data sheet
Calibration
Traceable certificate
Replacement
Exchange without downtime
The measuring range is confirmed in the quote based on your qualification. Full specifications and the data sheet are included.
The product in use
The sensor is mounted outside the zone, and the tubes are run to the rooms to be compared. The data logger sits alongside and transmits wirelessly.
Each limit has its own delay, so a normal passage through the airlock does not trigger an alarm, while a sustained loss of pressure does.
How to get it
We do not sell individual parts over the counter. We put the setup together based on what we see on your site and take care of the rest.
Request a quote
Tell us what you want to monitor. We will come back with questions or a proposal.
Walkthrough
We visit, look at your equipment and rooms and advise on quantity and placement.
Installation
We install, set up limits and on-call rotas and train your staff in the system.
Operation and calibration
We look after it afterwards. Calibration on time and sensor exchange without downtime.
Validation
We validate the system, on our own or together with your QA, and deliver the documentation.
Frequently asked questions
How large should the pressure difference be?
That is set in your own qualification and depends on the zone class. We configure your figures, we do not decide them.
How do we avoid an alarm at every passage?
With a delay on each level. The pressure difference must stay outside the limit for the number of seconds or minutes you decide.
When should we choose the dual instead of the single?
When you have a cascade through several rooms. If you only have two zones to compare, the single is enough.
Related products
The equipment can be combined freely. We put the setup together based on what needs to be measured at your site.
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Måløv Byvej 229
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Tell us what you need.
Want to see how it would look at your site?
Book a walkthrough. We visit, look at your equipment and rooms and advise on where the sensors should go. You then get a tailored proposal. No obligation.
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