PN3093 IFM Pressure Sensor – PN-025-RER14-MFRKGUSV

The IFM PN3093 is a ceramic-capacitive pressure sensor designed for precise relative pressure measurement in industrial environments. With dual output support (switching and analogue), IO-Link integration, and a rugged IP67 housing, it excels in monitoring liquids and gases under harsh conditions, offering exceptional accuracy, repeatability, and long-term reliability.

Technical Specifications

Model: PN3093
Manufacturer: IFM
Product Series: PN Series
Sensor Type: Relative pressure sensor
Measuring Range: 0…25 bar | 0…362 psi | 0…2.5 MPa

Process Connection

• G 1/4 internal thread (M6 I)
• Rated for 25…35 Nm tightening torque

Electrical Characteristics

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

Output Configuration

• Total Outputs: 2
• Digital Outputs: 1 (NO/NC, configurable)
• Analogue Outputs: 1
• Output Signal: Switching / Analogue / IO-Link (configurable)
• Electrical Design: PNP
• Voltage Drop (DC): ≤2.5 V
• Switching Output Current Rating:
  • 150 mA (continuous)
  • 200 mA (@ 60°C)
  • 250 mA (@ 40°C)
• Switching Frequency: < 170 Hz
• Analogue Output (Current): 4–20 mA (Max. Load: 500 Ω)
• Analogue Output (Voltage): 0–10 V (Min. Load: 2000 Ω)
• Short-Circuit Protection: Yes (pulsed)
• Overload Protection: Yes

Measuring & Setting Ranges

Factory Setting / CMPT = 2

• Set Point (SP): 0.2…25 bar | 4…362 psi | 0.02…2.5 MPa
• Reset Point (RP): 0.1…24.9 bar | 2…360 psi | 0.01…2.49 MPa
• Minimum SP–RP Difference: 0.2 bar | 2 psi | 0.02 MPa
• Adjustment Step: 0.1 bar | 2 psi | 0.01 MPa

High Resolution / CMPT = 3

• Set Point (SP): 0.2…25 bar | 3…363 psi | 0.02…2.5 MPa
• Reset Point (RP): 0.1…24.9 bar | 1…361 psi | 0.01…2.49 MPa
• Adjustment Step: 0.1 bar | 1 psi | 0.01 MPa

Accuracy & Repeatability

• Switch Point Accuracy: < ±0.5% of span
• Repeatability: < ±0.1% of span (ΔT < 10 K)
• Characteristics Deviation: < ±0.25% (BFSL) / < ±0.5% (LS)
• Hysteresis Deviation: < ±0.25% of span
• Long-Term Stability: < ±0.05% per 6 months
• Temp. Coeff. (Zero/Span): < ±0.2% of span / 10 K (0…80°C)

Response Times

• Switching Response Time: < 3 ms
• Analogue Response Time: < 3 ms
• Delay Time (dS, dr): 0…50 s
• Damping (Process Value – dAP): 0…4 s
• Damping (Analogue Output – dAA): 0…4 s

IO-Link Communication

• Interface Type: IO-Link v1.1
• Transmission Type: COM2 (38.4 kBaud)
• SDCI Standard: IEC 61131-9
• SIO Mode: Supported
• Master Port Type: A
• Process Data: 1 analogue, 1 binary
• Parameter Setting:
  • Hysteresis / Window
  • NO/NC Switching Logic
  • Damping
  • Output Type (Current/Voltage)
  • Display Units
  • Switch-On / Switch-Off Delays

Environmental Conditions

• Ambient Temperature: –25 to +80°C
• Storage Temperature: –40 to +100°C
• Medium Temperature: –25 to +80°C
• Minimum Bursting Pressure: 350 bar | 5075 psi | 35 MPa
• Pressure Rating: 150 bar | 2175 psi | 15 MPa
• Vacuum Resistance: –1000 mbar (–0.1 MPa)
• Protection Rating: IP65 / IP67
• Type of Pressure: Relative
• MTTF: 226 years

Mechanical Design

• Weight: 235 g
• Dimensions: Ø 34 mm × 90.7 mm
• Housing Type: Cylindrical
• Materials:
  • Housing: Stainless steel (316L), PBT+PC-GF30, PC
  • Wetted Parts: Stainless steel (316L), Al₂O₃ (ceramic), FKM
• Pressure Cycle Durability: 100 million cycles
• Tightening Torque: 25…35 Nm

Display & Diagnostics

• Display Type: Alphanumeric, 4-digit (red/green)
• Green LEDs: bar, psi, MPa
• Yellow LED: Switching status

Key Features & Benefits:

✅ Compact, Rugged Design: Built to withstand harsh industrial environments.

✅ High-Accuracy Pressure Monitoring: Up to 25 bar with repeatability < ±0.1%.

✅ Flexible Outputs + IO-Link: Digital, analogue, and IO-Link for maximum integration.

✅ Wide Temperature and Pressure Ratings: Suitable for demanding media.

✅ Fast Response Time: Analogue and switching signals respond in under 3 ms.

✅ Long-Term Reliability: 100 million pressure cycles with gold-plated connections.

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