IFM PN7594 Pressure Sensor – PN-010-REG14-QFRKG/US/ /V

The IFM PN7594 is a compact industrial pressure sensor designed for precise monitoring of liquids and gases within a -1 to 10 bar range. Engineered with gold-plated contacts, IO-Link v1.1, and dual configurable PNP/NPN switching outputs, the PN7594 offers exceptional performance in harsh environments. Its rugged stainless steel housing, fast <3 ms response time, and integrated LED/alphanumeric display make it ideal for automation, hydraulics, and vacuum systems across a range of industries.

Technical Specifications

Model: PN7594
Manufacturer: IFM
Sensor Type: Relative pressure and vacuum sensor
Measuring Range: –1…10 bar | –14.5…145 psi | –0.1…1 MPa
Process Connection: G 1/4 external + 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: 2
• Output Signal: Switching signal; IO-Link (configurable)
• Electrical Design: PNP/NPN (NO/NC configurable)
• Switching Output Ratings:
  • Max Voltage Drop: ≤ 2.5 V
  • Max Current:
    • 250 mA (≤ 40 °C)
    • 200 mA (≤ 60 °C)
    • 150 mA (≤ 80 °C)
  • Frequency: < 170 Hz
• Short-Circuit / Overload Protection: Yes (pulsed)

Measuring & Setting Range

• Factory Setting (CMPT = 2):
  • SP: –0.9…10 bar
  • rP: –0.95…9.95 bar
  • Min SP–rP: 0.05 bar
• High Resolution Mode (CMPT = 3):
  • SP: –0.92…10 bar
  • rP: –0.97…9.95 bar

Accuracy & Deviations

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

Response Times

• Response Time: < 3 ms
• Switching Delay (dS, dr): 0…50 s

Software & Parameterisation

• Settings Available:
  • Hysteresis / Window
  • NO / NC configuration
  • Switching logic
  • Delay times
  • Damping
  • Display units (bar, psi, MPa)

IO-Link Interface

• IO-Link Version: 1.1
• Transmission Type: COM2 (38.4 kBaud)
• Smart Sensor Profile: Device ID, Diagnostics, Process Variables
• Process Data: 1 analogue, 2 binary
• Min Cycle Time:
  • 2.3 ms (CMPT 2)
  • 3.0 ms (CMPT 3)
• SIO Mode: Yes

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 (Immunity)
  • DIN EN 61000-6-3 (Emission)
• Shock Resistance: 50 g (11 ms) – DIN EN 60068-2-27
• Vibration Resistance: 20 g (10–2000 Hz) – DIN EN 60068-2-6
• MTTF: 260 years

Mechanical Design

• Weight: 260.5 g
• Housing Material: Stainless Steel (316L), PC, PBT-GF20
• Wetted Materials: Stainless Steel (316L), FKM, Ceramics
• Pressure Cycle Durability: ≥100 million cycles
• Tightening Torque: 25–35 Nm

Display & Interface

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

Key Features & Benefits

✅ Dual PNP/NPN Switching Outputs for maximum control flexibility.

✅ Wide Range Capability: –1 to 10 bar, ideal for both vacuum and positive pressure.

✅ High Overpressure Tolerance: 150 bar burst, 75 bar rated.

✅ Integrated IO-Link for intelligent diagnostics and easy configuration.

✅ Robust Stainless Steel Build for long-term operation in harsh environments.

✅ Compact Design + LED Display makes integration quick and intuitive.

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