PF4 - Differential-Pressure Transmitter
The PF4 series is the latest development from ROTRONIC. The thermal measurement technique enables top-precision measurements in the smallest of spaces. This differential-pressure transmitter gives ROTRONIC customers a device to measure a further important parameter in addition to devices for humidity, temperature and CO2 measurement. With the optional connector for HygroClip2 probe, analog input or temperature sensor, the device is widely supported for the most diverse applications.
ROTRONIC stands for unparalleled accuracy and long-term stability. The new differential pressure series meets these requirements with a long-term stability of <0.3 %/year and an accuracy of ±1.0 % of full scale.
The ROTRONIC differential-pressure transmitters are ideal for clean rooms, operating rooms and applications where even minor differences in pressure can have a big effect.
• High-precision measurement and long-term stability
• Fast response time and low hysteresis
• Analog signals freely configurable
• Integrated relay switch contact
• Large overload range
• Expandable with HygroClip2 sensor or analogue inputs
• High immunity to dust and humidity in the medium
|Range of application||0...70 °C / 0…90 %rh; 0...60 °C / 0…90 %rh with display|
|Accuracy at 23 ±5 °C||±1.0 % of full scale @ 23 °C ±3 K|
|Inputs||Differential pressure, hose connections, 4 mm internal diameter Optional: HygroClip2 / analog input 1 Pt100 connection, 4-wire|
|Measuring range||-25...+25 Pa / -50…+50 Pa -100...+100 Pa / -250...+250 Pa -500…+500 Pa -100...200 °C (probe-dependent) 0...100 %RH (with HC2)|
|Pressure dependency||0.1 %/hPa|
|Pressure resistance||2 bar (2'000 hPa)|
|Air flow||120 - 180 μl/min|
|Accuracy analog output||±10 mV (voltage output); ±20 μA (current output)|
|Switch output||1 relay, Time delay, duty cycle, resetting configurable|
|Switching capacity||<50 VAC / <75 VDC / <1 A|
|Power supply||15…40 VDC / 14…28 VAC|
|Current consumption||<70 mA / <150 mA (with Ethernet)|
|Long-term stability||Typ. ±0.3 %/year|
|Response time t 63||<10 ms (only sensor element)|
|Alarm functions||Configurable relay, HW4|
|Type of output signals||Voltage, current, digital (optional)|
|Analog output signal (standard)||0…1 V, 0…5 V, 0…10 V, 0(4)…20 mA|
|Communication interfaces||Ethernet (optional)|
|Cable connections||1 x M16, terminal|
|IP protection rating||IP65|
|FDA / GAMP||FDA 21 CFR part 11 / GAMP5|
|CE / EMC conform||2004/108/EC|
|Dimensions||129 x 72 x 45 mm|
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