PCD-S - RMS Differential Pressure Probe

PCD-S - RMS Differential Pressure Probe

The Rotronic differential pressure probes are ideal for clean rooms, operating theaters and applications where even minor differences in pressure can have a big effect. Thanks to our two different measurement methods (thermal mass flow measurement and diaphragm measurement), we offer the perfect solution for every requirement. Together with other measurement parameters, these probes can be integrated in RMS perfectly.


  • High-precision measurement and long-term stability
  • With ambient pressure compensation
  • Large overload range
  • With flow or diaphragm sensor technology
  • Compatible with RMS logger, RMS On-premises software and SaaS solutions


  • HVAC
  • Cleanroom

More Information
Long-term stability <0.3 % of measured value / year
Measuring range -25...+25 Pa / -50…+50 Pa / -100...+100 Pa / -250...+250 Pa / -500…+500 Pa
Accuracy at 23 ±5 °C ±1.0 % full-scale (Pa)
Response time t 63 <1 s
Dimensions Ø 32 mm x 87 mm
IP protection rating IP65
Fire protection class Complies UL94-HB
Measurement interval 1 s probe
≥10s RMS / 1s Modbus
Weight 60 g
Housing Polycarbonate (housing)
Stainless steel DIN 1.4305 (nuts)
Current consumption Flow: 30 mA (avg.)<br>Diaphragm: 12 mA (avg.)
FDA / GAMP FDA 21 CFR part 11 / GAMP5
Battery lifetime Flow:
Wireless logger: 60d @ 10s interval / 350d @ 60s interval
LAN logger: 70d @ 10s interval / 395d @ 60s interval
Wireless logger: 130d @ 10s interval / 650d @ 60s interval
LAN logger: 180d @ 10s interval / 840d @ 60s interval
Adjustment points Factory adjustment/calibration: 5 points
Customer adjustment: max. 9 points
Pressure resistance Flow: 5 bar
Diaphragm: 0.7 bar
Parameters Differential pressure
Medium Flow: Air
Diaphragm: Air & non-aggressive gases
Pressure connections Tubing connector Ø 4.0 mm x 10 mm
Protocols Modbus RTU
Ambient pressure & temperature compensation Flow: Automatic
Diaphragm: Not necessary
Sensor type Flow / Diaphragm
Zero point compensation Flow: Automatic, 1x per measurement interval
Diaphragm: Manual, with external tube; via RMS software
Leak rate Flow: <180 μl/min.
Diaphragm: 0 μl/min.
Warm-up time <0.5 s

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+65 6376 2107


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