Knowledge base
Background articles, comparisons and tools for everyone working with differential pressure measurement.
What pressures typically occur in pharma, cleanroom, HVAC, biogas and furnace engineering — and what that means for instrument selection.
Read article →Mechanical ring balance or membrane, capacitive, piezoelectric? A direct, honest comparison — when each principle is superior.
Read article →Step by step: installation position, zero point, filling the sealing liquid and first measurement — everything needed for correct commissioning.
Read article →Pa, mbar, mmH₂O, hPa, inWC, mmHg — all units explained, full conversion table and interactive online calculator.
Read article →Which spans ring balances cover, how to choose the right range — and why differential pressure has a quadratic relationship to volume flow.
Read article →ATEX zones, reading the marking, Zener barrier vs. isolating amplifier — and what intrinsic safety means for differential pressure measurement in hazardous areas.
Read article →Equipment group, category, types of protection, gas and dust groups, T-classes, EPL — and what “X”, “U” and square brackets mean.
Read article →Three isolation-stage designs for intrinsically safe circuits compared — with entity verification per EN 60079-14 in a worked example.
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