ifm electronic Pressure Sensor
Model: PN2028
1. General Description
The ifm PN2028 is a programmable electronic pressure sensor designed for industrial applications. It features a robust stainless steel housing, a high-visibility 4-digit LED display, and a G 1/4 process connection.
This sensor is highly versatile, offering two outputs that can be configured as dual switching outputs or as one switching output and one analog output. This allows it to be used for both simple process control (on/off) and continuous measurement (monitoring) simultaneously.
Key Features 🎯
- Versatile Outputs: Features two programmable outputs, configurable as:
- 2x PNP/NPN Switching Outputs (250 mA each)
- 1x Switching Output + 1x Analog Output (4…20 mA or 0…10 V)
- Clear Display: Bright 4-digit alphanumeric LED display shows the current pressure.
- Programmable: Set points, reset points, output functions (NO/NC), and display units are all programmable via the pushbuttons.
- Robust Housing: Features a stainless steel housing with an IP67 protection rating.
- High Overpressure Protection: Built to withstand pressure spikes significantly higher than its measuring range.
2. Technical Specifications
Measuring Range
| Parameter | Value |
| Measuring Range (P Range) | -1 … 25 bar |
| -14.5 … 362.5 psi | |
| -0.1 … 2.5 MPa | |
| Max. Overpressure (P max) | 100 bar / 10 MPa |
Electrical Data
| Parameter | Value |
| Operating Voltage (U) | 18 … 32 V DC |
| Total Outputs | 2 |
| Output 1 (Switching) | 1x PNP/NPN (250 mA) |
| Output 2 (Configurable) | 1x PNP/NPN (250 mA) OR 1x Analog |
| Analog Output (Ua) | 0 … 10 V (scalable) |
| Analog Output (Ia) | 4 … 20 mA (scalable) |
| Protection Class | III (SELV/PELV) |
| Reverse Polarity Protection | Yes |
| Short-circuit Protection | Yes (Pulsed) |
Mechanical & Environmental Data
| Parameter | Value |
| Process Connection | G 1/4 Threaded Port |
| Enclosure Rating | IP67 |
| Housing Material | Stainless Steel |
| Wetted Parts Material | Stainless Steel, Ceramics, FKM |
| Ambient Temperature | -25 … 80 °C (Typical) |
| Connection | M12 Connector (4-pin) |
3. Connection (M12 4-Pin Connector)
| Pin | Designation | Function |
| 1 | L+ | 18 … 32 V DC (Power Supply +) |
| 2 | OUT 2 | Switching Output 2 or Analog Output |
| 3 | L- | 0V (GND / Power Supply -) |
| 4 | OUT 1 | Switching Output 1 (or IO-Link) |
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