01
Clamping and system pressure
Monitor hydraulic power units, fixtures and machine circuits with local status plus control-system signals.
ifm · Industrial pressure
ifm PN Pressure Sensors
Digital pressure sensing for machine and industrial fluid-power applications, with local display, switching, analogue and IO-Link functions according to PN family/model. Use the PN route when machine operators need a visible pressure value together with reliable PLC integration and configurable switching logic.
Industrial pressureCeramic-capacitiveRed / green displaySwitchingAnalogue by routeIO-Link
Overall PN route-1…600 barFamily-wide current industrial selection range
FunctionsSwitch + transmitModel-dependent switching / analogue / IO-Link
Operator interfaceDigital displayLocal pressure and status visibility
CellCeramic-capacitiveIndustrial pressure measurement principle
Machine pressure
Designed for hydraulic, pneumatic and general industrial pressure monitoring
The PN family is strongest where the machine needs both local operator visibility and PLC-level switching / transmission.
02
Liquid line pressure
Use appropriate media-compatible PN variants for water-based machine circuits and industrial process pressure.
03
Air / vacuum monitoring
Negative and low-pressure ranges are available; compare PN with the more compact PQ route for compressed-air applications.
04
Pressure peaks and fluctuations
Current PN functionality includes IO-Link data and family-specific diagnostic / min-max capabilities useful for machine maintenance.
Operator + PLC visibility
Local indication with a digital pressure value
Red / green process indication
Colour changes can make acceptable and fault pressure ranges visible directly at the machine.
Switching plus analogue on PN2 / PN routes
Selected current PN devices combine switching with scalable 4–20 mA or 0–10 V transmission.
Parameterisation and process data
Use the same pressure sensor for local switching and digital communication where the model supports IO-Link.
Current PN routes
PN2 for transmitter + switching; PN7 when dual switching and IO-Link are enough
ifm's current selection separates PN2 and PN7 according to signal architecture rather than pressure range alone.
PN2Transmitter + switch + IO-Link, with scalable 4–20 mA / 0–10 V analogue output and FKM internal sealing.
PN7Dual switching output and IO-Link transmitter route; no analogue transmitter function in the current PN7 selection description.
PN4Special AC-powered switch route for applications where the electrical architecture requires 85…265 V AC.
Other pressure familiesPE, PA/PX/PT/PV, PK and PQ serve different sealing, compactness, transmitter-only or pneumatic requirements.
Representative PN model
PN2094 shows the typical industrial PN architecture
PN2094 example
Use exact order-number data for final selection; family-level ranges do not mean every output, connection and pressure span is available in every model.
Measuring range-1…10 bar
Process connectionG 1/4 internal thread
Outputs2 digital + 1 analogue output
Measuring elementCeramic-capacitive pressure cell
MediaLiquid and gaseous media within material compatibility
HousingUpper part rotatable for display / connector alignment
Choose the pressure family
PN is the display-rich industrial route—not automatically the best pressure sensor for every machine
| Requirement | ifm route | Why |
|---|---|---|
| Industrial pressure with display + switching + analogue / IO-Link | PN / PN2 | Primary fit Flexible machine-pressure architecture |
| Dual switching + IO-Link without analogue output | PN7 | Focused switching architecture |
| Very compact transmitter | PT / PA / PX | Transmitter-focused, lower-profile route |
| Compressed air / vacuum, compact format | PQ | Purpose-oriented pneumatic pressure family |
| Food / beverage hygienic pressure or tank level | PI / PM / PG hygienic routes | Process connections and hygienic design matched to sanitary applications |
Requirement capture
Inputs required to select the PN pressure sensor
Pressure rangeMinimum, normal, maximum and expected pressure peaks.
MediumHydraulic oil, water, air, gas or other process fluid.
ConnectionRequired thread / adapter and available installation space.
OutputsSwitching, 4–20 mA, 0–10 V and/or IO-Link.
Display needLocal indication, colour window and operator visibility.
EnvironmentTemperature, washdown, vibration, pressure pulsation and electrical architecture.