IFM PI2793 Pressure Sensor – PI-025-REA01-MFRKG/US/ /P

The IFM PI2793 is a high-precision pressure sensor optimized for hygienic installations in food, beverage, and pharmaceutical processes. Featuring a G 1 aseptoflex process connection, flush-mount ceramic diaphragm, and IO-Link communication, this versatile sensor offers 2 digital switching outputs, a scalable analog 4–20 mA output, and robust IP69K protection. Its construction with 316L stainless steel and PTFE/PFA seals ensures compatibility with viscous and particle-laden media, while the intuitive 4-digit display and programmable outputs make it ideal for demanding, washdown environments with zero dead space.

Technical Specifications

Model: PI2793
Sensor Type: Pressure Sensor
Pressure Type: Relative pressure, including vacuum
Application: Food-grade, flush-mounted, hygienic media
Process Connection: G 1 external thread Aseptoflex Vario (Flush)
Compatible Media: Viscous media, liquids with particles, gases, and liquids
Dead Space Free: Yes
Special Features: Gold-plated contacts, hygienic ceramic diaphragm
Display: 4-digit alphanumeric, with status LEDs
Housing Design: Cylindrical, stainless steel

Measuring & Setting Range

• Measuring Range: –1…25 bar | –14.4…362.7 psi | –0.1…2.5 MPa
• Set Point (SP): –0.96…25 bar
• Reset Point (rP): –1…24.96 bar
• Analog Start Point (ASP): –1…18.74 bar
• Analog End Point (AEP): 5.24…25 bar
• Adjustment Increments: 0.02 bar / 0.3 psi
• Factory Settings:
  • SP1 = 6.24 bar, rP1 = 5.74 bar
  • SP2 = 18.74 bar, rP2 = 18.24 bar
  • ASP = 0.00 bar, AEP = 25.00 bar
  • dAP = 0.06 s, dAA = 0.03 s

Electrical Characteristics

• 2-Wire Configuration:
  • Operating Voltage: 20–32 V DC
  • Current Consumption: 3.6–21 mA
  • Max Load: 300 Ω
  • Response Time: 45 ms
  • Power-On Delay: 1 s
• 3-Wire Configuration:
  • Operating Voltage: 18–32 V DC
  • Current Consumption: < 45 mA
  • Voltage Drop (Switching Output): ≤ 2 V DC
  • Switching Output Rating: 250 mA
  • Switching Frequency: 125 Hz
  • Response Time: 7 ms
  • Power-On Delay: 0.5 s
• Protection Class: III
• Reverse Polarity Protection: Yes
• Integrated Watchdog: Yes
• Insulation Resistance: ≥ 100 MΩ @ 500 V DC

Output Configuration

• Total Outputs: 2
• Signal Types: Digital (switching), Analog (4–20 mA), IO-Link
• Digital Outputs: PNP/NPN, NO/NC configurable
• Analog Output: 4–20 mA, scalable and invertible
• Short-Circuit Protection: Yes (Pulsed)
• Overload Protection: Yes

Accuracy & Deviations

• Switching Accuracy: < ±0.2% of span
• Repeatability: < ±0.1% of span
• Characteristic Deviation: < ±0.2%
• Linearity Deviation: < ±0.15%
• Hysteresis Deviation: < ±0.15%
• Long-Term Stability: < ±0.1% per year
• Temp Coefficient (Zero): < ±0.05% per 10 K
• Temp Coefficient (Span): < ±0.15% per 10 K

Response Times

• Switching Damping (dAP): 0…30 s
• Analog Output Damping (dAA): 0.01…99.99 s
• Min Response Time (3-wire): 3 ms

Communication Interface

• Protocol: IO-Link v1.0
• Transmission: COM2 (38.4 kBaud)
• SIO Mode: Supported
• Master Port Type: A
• Process Data: 1 Analog, 2 Binary
• Min Process Cycle Time: 2.3 ms

Environmental Conditions

• Ambient Temperature: –25 to +80 °C
• Medium Temperature: –25 to +125 °C (up to 145 °C for 1 hour)
• Storage Temperature: –40 to +100 °C
• Protection Ratings: IP67 / IP68 / IP69K
• Pressure Rating: 100 bar
• Burst Pressure: 350 bar
• Vacuum Resistance: –1000 mbar
• MAWP (CRN): 60 bar
• MTTF: 160 years

Compliance & Certifications

• EMC Standards:
  • EN 61000-4-2: ESD – 4 kV CD / 8 kV AD
  • EN 61000-4-3: Radiated HF – 10 V/m
  • EN 61000-4-4: Burst – 2 kV
  • EN 61000-4-5: Surge – 0.5/1 kV
  • EN 61000-4-6: Conducted HF – 10 V
• Shock Resistance: 50 g (11 ms) – IEC 68-2-27
• Vibration Resistance: 20 g (10–2000 Hz) – IEC 68-2-6

Mechanical Design

• Weight: 357.5 g
• Housing Dimensions: Ø 50 mm × 105.8 mm
• Material (Housing): Stainless steel 316L, FKM, PTFE, PEI, PBT, PFA
• Wetted Parts: Ceramic (99.9% Al₂O₃), 316L stainless steel, PTFE
• Surface Finish: Ra < 0.4 µm
• Pressure Cycle Durability: ≥ 100 million cycles

Display & Indicators

• Display: 4-digit alphanumeric
• Indicators:
  • Green LED: Operating status
  • Yellow LED: Switching status
• Displayed Units: Bar, psi, MPa, % of span

Electrical Connection

• Connector: 1 × M12 A-coded
• Contacts: Gold-plated

Key Features & Benefits

✅ Flush Ceramic Diaphragm for hygienic, dead-space free measurement.

✅ Wide Pressure Range –1 to 25 bar ideal for vacuum and positive pressure systems.

✅ Versatile Output Options: Digital (PNP/NPN), Analog (4–20 mA), and IO-Link.

✅ Built-In Display + LED Indicators for on-site configuration and diagnostics.

✅ IP69K Stainless Steel Housing meets the highest washdown standards.

✅ Certified for High-EMC Environments with outstanding stability and repeatability.

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