IFM PN2571 Pressure Sensor – PPN-250-SEG14-MFRKG/US/ /V

The IFM PN2571 is a versatile industrial pressure sensor engineered for high-performance monitoring of liquids and gases up to 250 bar (3625 psi). Featuring a robust metallic thin film cell, dual PNP/NPN switch outputs, and a scalable analogue signal (4–20 mA / 0–10 V), it supports IO-Link communication for advanced diagnostics. The PN2571 combines high overload capacity (1200 bar) with a bright 4-digit alphanumeric display, gold-plated M12 contacts, and G 1/4 + M5 dual-thread connection, making it ideal for OEM and heavy-duty applications.

Technical Specifications

Model: PN2571
Manufacturer: IFM
Sensor Type: Relative pressure sensor
Measuring Element: Metallic thin film cell
Measuring Range: 0…250 bar | 0…3625 psi | 0…25 MPa
Vacuum Resistance: –1000 mbar | –0.1 MPa
Process Connection: G 1/4 external (DIN EN ISO 1179-2) + M5 internal thread

Electrical Characteristics

• Operating Voltage: 18–30 V DC (SELV/PELV)
• Current Consumption: < 35 mA
• Protection Class: III
• Power-On Delay Time: 0.3 s
• Reverse Polarity Protection: Yes
• Integrated Watchdog: Yes
• Insulation Resistance: ≥100 MΩ (500 V DC)
• Electrical Connection: 1 × M12 A-coded, gold-plated contacts

Output Configuration

• Total Outputs: 3 (2 × digital, 1 × analogue)
• Output Types:
  • Switching: PNP/NPN (configurable NO/NC)
  • Analogue: 4–20 mA (load ≤ 500 Ω) / 0–10 V (load ≥ 2000 Ω)
  • IO-Link
• Switching Specs:
  • Max Current: 250 mA
  • Voltage Drop: ≤ 2 V
  • Frequency: < 500 Hz
• Short-Circuit / Overload Protection: Yes (pulsed)

Measuring & Setting Range

• Analogue Start Point: 0…200 bar | 0…2900 psi | 0…20 MPa
• Analogue End Point: 50…250 bar | 725…3625 psi | 5…25 MPa
• Set Point (SP): 1.5…250 bar
• Reset Point (RP): 0.5…249 bar
• Min. SP–RP Difference: 1.5 bar / 15 psi / 0.15 MPa
• Scalability: 1:5

Accuracy & Deviations

• Switch Point Accuracy: < ±0.4%
• Repeatability: < ±0.1% (ΔT < 10 K)
• Characteristic Deviation: < ±0.25% (BFSL) / < ±0.5% (LS)
• Hysteresis Deviation: < ±0.1%
• Long-Term Stability: < ±0.05% per 6 months

Response Times

• Response Time: < 1.5 ms
• Programmable Delay (dS/dr): 0…50 s
• Damping (Process/Analogue): 0…4 s
• Max Response Time (Analogue): 3 ms

Software & Interfaces

• Parameter Options: Hysteresis/Window, NO/NC, Delays, Damping, Units, Output type
• IO-Link Version: 1.1
• Transmission Rate: COM2 (38.4 kBaud)
• Standard Compliance: IEC 61131-9
• SIO Mode: Yes
• Required Port Type: A (B if pin 2 not connected)

Environmental Conditions

• Ambient Temperature: –25 to +80 °C
• Storage Temperature: –40 to +100 °C
• Protection Rating: IP65 / IP67

Compliance & Certifications

• EMC: DIN EN 61000-6-2 / EN 61000-6-3
• Shock Resistance: DIN EN 60068-2-27: 50 g (11 ms)
• Vibration Resistance: DIN EN 60068-2-6: 20 g (10–2000 Hz)

Mechanical Design

• Weight: 261.5 g
• Housing: Cylindrical, Ø 34 mm × 92.7 mm
• Materials:
  • Housing: Stainless Steel (630, 316L), PBT+PC-GF30, PBT-GF20, PC
  • Wetted Parts: Stainless Steel 17-4 PH (1.4542)
• Pressure Cycle Durability: High, for OEM use

Display & Interface

• Display Type:
  • 3 × Green LEDs (bar, psi, MPa units)
  • 2 × Yellow LEDs (switching state)
  • 4-digit Alphanumeric Display (Red/Green)

Key Features & Benefits

✅ 250 Bar Rating + 1200 Bar Burst Pressure for demanding hydraulic and pneumatic environments.

✅ Dual Switch + Scalable Analogue Output for flexible control integration.

✅ IO-Link Communication for diagnostics, parameterisation, and smart factory integration.

✅ Gold-Plated Contacts + IP67 Sealing ensure long service life in harsh environments.

✅ Fast Response & Minimal Drift guarantees accurate performance over time.

✅ Integrated LED Display offers instant process visibility in bar, psi, or MPa.

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