IFM PM1708 Pressure Sensor – PM-,25BREA01-E-ZVG/US

The IFM PM1708 is a flush-mountable ceramic-capacitive pressure sensor optimized for viscous and particulate-laden media in the food and beverage industry. Designed for hygienic process integration, the PM1708 supports a measuring range of –0.0125 to 0.25 bar, offers both analogue and IO-Link outputs, and is equipped with gold-plated contacts for enhanced signal reliability.

Its IP67/IP68/IP69K protection rating, combined with superior shock and vibration resistance, ensures stable operation in demanding CIP/SIP environments.

Technical Specifications

Model: PM1708
Manufacturer: IFM
Product Series: PM Series
Sensor Type: Relative pressure sensor
Measuring Range: –0.0125…0.25 bar | –0.182…3.626 psi | –1.25…25 kPa

Process Connection

• G 1 external thread (Aseptoflex Vario)
• Hygienic connection for flush installation in process lines

Electrical Characteristics

• Operating Voltage: 18–30 VDC (SELV/PELV)
• Current Consumption (2-wire): 3.5…21.5 mA
• Current Consumption (3-wire): < 45 mA
• Power-On Delay: 0.5–1 s
• Insulation Resistance: ≥100 MΩ (500 VDC)
• Protection Class: III
• Reverse Polarity Protection: Yes
• Integrated Watchdog: Yes
• Electrical Connection: 1 × M12 connector (A-coded, gold-plated contacts)

Output Configuration

• Total Outputs: 2 (1 analogue, 1 digital/IO-Link)
• Digital Output: 1 (IO-Link configurable)
• Analogue Output: 1 (4–20 mA scalable)
• Max Load: 700 Ω (Ub = 24 V)
• Output Signal: Analogue / IO-Link (configurable)
• Short-Circuit / Overload Protection: Yes

Measuring & Setting Ranges

• Measuring Range: –12.5…250 mbar | –0.182…3.626 psi | –1.25…25 kPa
• Analogue Start Point (ASP): –12.5…200 mbar
• Analogue End Point (AEP): 37.5…250 mbar
• Factory Setting: ASP = 0.0 mbar, AEP = 250 mbar
• Step Resolution: 0.1 mbar | 0.002 psi | 0.01 kPa

Accuracy & Repeatability

• Repeatability: < ±0.1% of span (ΔT < 10 K)
• Characteristics Deviation: < ±0.2% (incl. linearity, hysteresis, repeatability)
• Linearity Deviation: < ±0.15% of span
• Hysteresis Deviation: < ±0.15% of span
• Long-Term Stability: < ±0.1% of span per year
• Temp. Coefficient (Zero/Span):
  • –25…15°C: ±0.1% of span / 10 K
  • 80…150°C: ±0.15% of span / 10 K

Response Times

• Step Response (2-wire): 30 ms
• Step Response (3-wire): 7 ms
• Damping (Analogue – dAA): 0…4 s

IO-Link Communication

• Interface Type: IO-Link v1.1
• Transmission Type: COM2 (38.4 kBaud)
• SDCI Standard: IEC 61131-9
• Profiles: Digital Measuring Sensor, Identification, Diagnosis
• SIO Mode: Supported

Environmental Conditions

• Ambient Temperature: –25 to +80°C
• Storage Temperature: –40 to +100°C
• Medium Temperature: Up to 150°C
• Protection Rating: IP67 / IP68 / IP69K
• Bursting Pressure: 30 bar | 435 psi | 3000 kPa
• Pressure Rating: 6 bar | 84 psi | 600 kPa
• Vacuum Resistance: –1000 mbar
• MTTF: 323 years

Mechanical Design

• Weight: 273.45 g
• Dimensions: Ø 30.2 mm × 111 mm
• Housing Type: Cylindrical (hygienic design)
• Housing Materials: Stainless steel (316L), PBT
• Wetted Materials: Al₂O₃ ceramics, stainless steel (316L), PTFE
• Surface Finish (Wetted): Ra < 0.4 / Rz < 4
• Pressure Cycle Durability: 100 million
• Tightening Torque: 35 Nm

Display & Diagnostics

• No local display
• Diagnostic functions via IO-Link

Key Features & Benefits:

✅ Hygienic Flush-Mount Design: Perfect for food-grade and viscous media applications.

✅ High Pressure Ratings: Withstands up to 30 bar burst pressure.

✅ Dual Output Architecture: Analogue and IO-Link outputs for flexible integration.

✅ Extreme Environmental Protection: IP69K for high-pressure washdowns and CIP systems.

✅ Gold-Plated Contacts: Ensures reliable signal transmission and corrosion resistance.

✅ Smart IO-Link Interface: Offers remote configuration, diagnostics, and process transparency.

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