Overview
The ifm PN4223 pressure sensor is an electronic pressure monitor with integrated 7-segment LED display designed for industrial automation and process control. It features AC/triac output, 1/4″ NPT process connection, and 5-wire configuration. The unit provides real-time pressure indication and programmable switching for pneumatic and hydraulic systems.
Key Features
- 7-segment LED display for direct pressure visualization across units of bar, PSI, and MPa
- Triac output (AC-compatible) with normally open/closed programmable configuration
- Measuring range 0–25 bar (0–363 PSI / 0–2.5 MPa)
- Operating voltage 85–265 V AC; nominal 90–250 V AC (45–65 Hz)
- Requires 5 A fast-acting miniature fuse per IEC60127-2 Sheet 1
- Stainless steel (303S22) and ceramic wetted parts for corrosion resistance
Technical Specifications
- Pressure range adjustable within 0.2 to 25.0 bar (setpoint and reset functions)
- Current consumption 10 mA
- Maximum potential difference between supply and output circuits: 300 V
- Ambient temperature rating 0–40°C, enclosure type 1, pollution degree 2
- Process connection: 1/4″ NPT with M12 connector (A) quick disconnect option
- Housing materials: stainless steel (304S15), polycarbonate (Makrolon), polybutylene terephthalate (Potan)
- Seal materials: FPM (Viton)
- Display update: selectable rate and orientation via menu
Typical Applications
The PN4223 is suited for:
- Hydraulic and pneumatic system pressure monitoring
- Industrial process control with visual and electrical alarm outputs
- Machine tool and manufacturing equipment pressure supervision
- Water and gas distribution pressure indication
- Compressed air systems requiring threshold-based switching
Compatibility & Replacements
Compatible With
- AC power supply systems (85–265 V)
- Hydraulic and pneumatic circuits requiring pressure monitoring
- G 1/4 (ISO 4401) process connections
- Programmable controllers and relay circuits accepting triac outputs
- M12 connector quick-disconnect systems
Replaces / Drop-In Replacement For
The PN4223 is part of the ifm PN422x series. Related models in the same family include PN4220 (4–400 bar), PN4221 (2–250 bar), and PN4222 (1–99.9 bar). Verify compatibility with your system integrator before ordering as display range and output configuration differ by model.
Works With
- Triac switching circuits and AC-rated load devices
- Industrial PLC and control system inputs
- Pressure-dependent alarm and monitoring logic
- M12 A-coded connectors and ifm sensor ecosystems
- io-Link parameter setting tools (where supported by controller)
