Practical know-how for differential pressure measurement: how to do it even better
How to make the best use of your differential pressure measuring instrument
With differential pressure measurement, it is important to connect the right pressure to the right connection. Make sure that you connect the overpressure to the plus connection (+) and the negative pressure to the minus connection (-). This enables your differential pressure gauge to operate over the full measuring range – and you can count on high-precision measuring values.
Measure differential pressure in the cleanroom:
If it is a case of ensuring standard-compliant operation in cleanrooms, the requirements in terms of the precision of the differential pressure measuring instrument could not be higher. The pressure difference between rooms of different cleanroom classes is precisely controlled – and has to be strictly adhered to. Because the minimum overpressure of the cleanroom ensures that, when the door is open, no air flow is created from the unclean room into the clean one, which would contaminate the latter. The standardized differential value is between 5 and 20 Pa. A Testo differential pressure gauge means you can be sure that your values are right.