IFM PI7993 Pressure Sensor – PI-025-REB34-QFRKG/US/ /P

The IFM PI7993 is a flush-mount ceramic pressure sensor designed for precision monitoring of viscous and particulate-laden media in hygienic applications. With a wide –1 to 25 bar measuring range, two configurable PNP/NPN switching outputs, and a freely rotatable 350° housing, the PI7993 delivers both flexibility and durability. Built with IP67/IP69K protection, an alphanumeric display, and gold-plated M12 contacts, it’s ideal for the food, beverage, and processing industries demanding fast, reliable pressure switching.

Technical Specifications

Model: PI7993 Pressure Sensor
Manufacturer: IFM
Product Series: PI Series
Sensor Type: Relative pressure and vacuum sensor
Measuring Range: –1…25 bar | –14.4…362.7 psi | –0.1…2.5 MPa

Process Connection

• G 3/4 external thread
• Flush-mount ceramic diaphragm
• No dead space for hygienic compatibility

Electrical Characteristics

• Operating Voltage: 18–32 VDC (SELV/PELV)
• Current Consumption: < 50 mA
• Insulation Resistance: ≥100 MΩ (500 VDC)
• Protection Class: III
• Power-On Delay: 0.5 s
• Reverse Polarity Protection: Yes
• Integrated Watchdog: Yes
• Electrical Connection: 1 × M12 connector (A-coded, gold-plated contacts)

Output Configuration

• Total Outputs: 2
• Output Signal: Switching signal
• Electrical Design: PNP/NPN
• Output Function: NO/NC configurable
• Voltage Drop: ≤ 2.0 V
• Current Rating: 250 mA
• Switching Frequency: 85 Hz
• Short-Circuit Protection: Yes (pulsed)
• Overload Protection: Yes

Measuring & Setting Ranges

• Measuring Range: –1…25 bar
• Set Point (SP): –0.96…25 bar
• Reset Point (RP): –1…24.96 bar
• Factory Settings:
  • SP1 = 6.24 bar RP1 = 5.74 bar
  • SP2 = 18.74 bar RP2 = 18.30 bar

Accuracy & Repeatability

• Switch Point Accuracy: < ±0.2% of span (Turn down 1:1)
• Repeatability: < ±0.1% (ΔT < 10 K)
• Characteristics Deviation: < ±0.2% (Turn down 1:1, incl. linearity, hysteresis, repeatability)
• Temp. Coefficient (Zero): < ±0.05% of span / 10 K (0…70°C)
• Temp. Coefficient (Span): < ±0.15% of span / 10 K (0…70°C)

Response Time

• Response Time: < 6 ms
• Damping (dAP): Selectable from 0…100 s

Environmental Conditions

• Ambient Temperature: –25 to +80°C
• Storage Temperature: –40 to +100°C
• Medium Temperature: –25 to +125°C (145°C max. for 1 hr)
• Protection Rating: IP67 / IP69K
• Bursting Pressure: 200 bar | 2900 psi | 20 MPa
• Pressure Rating: 100 bar | 1450 psi | 10 MPa
• Type of Pressure: Relative / Vacuum
• No Dead Space: Yes

Compliance & Certifications

• EMC Standards:
  • EN 61000-4-2 (ESD): 4 kV CD / 8 kV AD
  • EN 61000-4-3 HF Radiated: 10 V/m
  • EN 61000-4-4 Burst: 2 kV
  • EN 61000-4-5 Surge: 0.5 / 1 kV
• Shock Resistance:
  • DIN IEC 68-2-27: 50 g (11 ms)
• Vibration Resistance:
  • DIN IEC 68-2-6: 20 g (10…2000 Hz)
• MTTF: 178 years

Mechanical Design

• Weight: 377.5 g
• Dimensions: Ø 34 mm × 119 mm
• Housing Type: Cylindrical, freely rotatable (350°)
• Housing Materials: Stainless steel (316L), PC, PBT, PEI, FKM, PTFE
• Wetted Materials: Al₂O₃ ceramics (99.9%), stainless steel (316L), PTFE
• Pressure Cycle Durability: 100 million

Display & Diagnostics

• Alphanumeric Display: 4-digit
• Display Unit: bar, psi, MPa, % of span
• Status LEDs:
  • 4 × Green (process values)
  • 2 × Yellow (switching outputs)

Key Features & Benefits:

✅ Flush Ceramic Sensor: Built for media with particles and high viscosity.

✅ Dual Digital Outputs: Fully parameterisable PNP/NPN switching logic.

✅ Freely Rotatable Display: 350° housing rotation for flexible mounting.

✅ High Temp Media Compatibility: Operates up to 125°C; 145°C peak.

✅ Smart Damping: Programmable response smoothing from 0 to 100 s.

✅ IP69K & LED Feedback: Built for hygienic applications and easy diagnostics.

📦 Order Today for Fast UK & Europe Delivery!

At Drive Outlet Megastore, we offer the best IFM PI7993 prices, with same-day and next-day shipping across the UK & Europe.

Need help selecting the right IFM pressure sensor?

Contact Us for expert advice from our experienced team.