The IFM PI1705 is a flush pressure sensor with display designed for hygienic pressure monitoring in food and beverage processing. It measures -1…4 bar and supports both relative pressure and vacuum measurement. Two digital outputs, one scalable 4…20 mA output, and IO-Link provide flexible integration into automation systems. Its G1 Aseptoflex Vario connection, 316L stainless-steel construction, and flush no-dead-space design support hygienic installation. The sensor also provides integrated temperature monitoring from -25…150 °C.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The PI1705 is designed for low-pressure applications with a measuring range of -1…4 bar. It can monitor both vacuum and positive pressure. The minimum difference between the switching point and reset point is 0.006 bar. Pressure values can be configured in 0.001 bar increments. This provides fine adjustment for sensitive process-control applications.
The PI1705 combines pressure measurement with integrated temperature monitoring. Its temperature measuring range is -25…150 °C with a resolution of 0.2 K. Temperature data can be transmitted digitally through IO-Link. The sensor also provides internal temperature and pressure-peak information through IO-Link. This allows multiple process parameters to be monitored from one device.
The PI1705 uses a G1 Aseptoflex Vario process connection with a flush sealing contour. Wetted materials include 99.9% Al₂O₃ ceramic, stainless steel 316L/1.4435, and PTFE. The wetted surface has a specified Ra <0.4 µm / Rz 4 µm finish. The sensor supports medium temperatures up to 150 °C and a pressure rating of 30 bar. IP67/IP68/IP69K protection supports demanding hygienic environments.
-1…4 bar measuring range
Relative pressure and vacuum
Flush mounting
No-dead-space construction
4-digit alphanumeric display
Two digital outputs
One analogue output
4…20 mA scalable/invertible
PNP/NPN
NO/NC configurable
IO-Link 1.1
COM2 38.4 kBaud
Integrated temperature monitoring
0.2 K temperature resolution
G1 Aseptoflex Vario connection
IP67/IP68/IP69K
Food and beverage processing
Hygienic pressure monitoring
Vacuum monitoring
Low-pressure systems
Tank monitoring
Process pipelines
CIP/SIP equipment
Temperature monitoring
The PI1705 provides pressure and temperature data through its IO-Link interface. The pressure resolution through IO-Link is 0.0002 bar. Temperature resolution is 0.2 K. Diagnostic functions include operating hours, switching cycles, pressure peaks, and measuring-cell diagnosis. The sensor supports a minimum IO-Link process cycle time of 5.6 ms. This makes it suitable for detailed digital process monitoring.
Install the PI1705 using the specified G1 Aseptoflex Vario connection. Ensure the flush sealing surface is clean and correctly seated during installation. The recommended tightening torque is 35 Nm. Observe the pressure and temperature limits of the process. Regularly inspect the sensing surface, process seal, and M12 connector.
| Specification | Details |
|---|---|
| Model | PI1705 |
| Product type | Flush pressure sensor with display |
| Order code | PI-004-REA01-MFRKG/US/P |
| Measuring principle | Ceramic pressure measuring cell |
| Measuring range | -1…4 bar |
| Pressure type | Relative pressure / vacuum |
| Media | Liquids and gases |
| Special media | Viscous media / suspended particles |
| Process connection | G1 external thread |
| Connection system | Aseptoflex Vario |
| Flush design | Yes |
| No-dead-space design | Yes |
| Pressure rating | 30 bar |
| Minimum burst pressure | 100 bar |
| Vacuum resistance | -1000 mbar |
| Medium temperature | -25…150 °C |
| Supply voltage, 2-wire | 20…30 V DC |
| Supply voltage, 3-wire | 18…30 V DC |
| Digital outputs | 2 |
| Analogue outputs | 1 |
| Electrical design | PNP/NPN |
| Switching function | NO/NC parameterisable |
| Analogue output | 4…20 mA |
| Analogue output | Scalable / invertible |
| Switching output current | 100 mA |
| Switching frequency | 125 Hz |
| Short-circuit protection | Yes, pulsed |
| Overload protection | Yes |
| IO-Link revision | 1.1 |
| IO-Link transmission | COM2, 38.4 kBaud |
| Minimum IO-Link cycle | 5.6 ms |
| IO-Link pressure resolution | 0.0002 bar |
| Temperature range | -25…150 °C |
| Temperature resolution | 0.2 K |
| Ambient temperature | -25…80 °C |
| Protection rating | IP67/IP68/IP69K |
| Housing material | Stainless steel 316L/1.4404 |
| Wetted measuring cell | 99.9% Al₂O₃ ceramic |
| Wetted process connection | Stainless steel 316L/1.4435 |
| Wetted surface | Ra <0.4 µm / Rz 4 µm |
| Dimensions | Ø50 × 107 mm |
| Weight | 359.9 g |
| Electrical connection | M12, 4-pin, gold-plated |
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