The IFM PK7531 is an electronic pressure switch designed for intuitive mechanical adjustment of the switching point. It measures relative pressure from 0 to 250 bar and is suitable for liquids and gases. Two switching outputs provide direct pressure-control signals for industrial automation systems. The switching point is adjusted using setting rings, allowing quick configuration without a programming interface. Its stainless-steel wetted construction, 400 bar pressure rating, and IP67 protection make it suitable for hydraulic and industrial pressure applications.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The PK7531 provides pressure monitoring from 0 to 250 bar. Its setting rings allow the switching point to be adjusted directly on the sensor. This approach makes commissioning straightforward when frequent pressure adjustments are required. The device provides two PNP switching outputs. It is suitable for applications where direct pressure threshold monitoring is more important than continuous analogue measurement.
The pressure switch uses a stainless-steel 316L process and wetted construction with FPM sealing. It supports a pressure rating of 400 bar and a minimum burst pressure of 1000 bar. The device is rated for medium temperatures from -25…80 °C. A minimum pressure-cycle capability of 50 million cycles supports long-term industrial operation. IP67 protection helps protect the switch against dust and water exposure.
Two yellow LEDs indicate switching status during operation. The setting rings include a scale to help configure the required switching point. The sensor uses an M12 connector for electrical connection. Short-circuit and overload protection improve reliability. This makes the PK7531 practical for hydraulic, pneumatic, cooling, and lubrication systems.
0…250 bar pressure range
Relative pressure measurement
Two switching outputs
PNP electrical design
Normally open outputs
Intuitive setting rings
Switching-point scale
Yellow LED indication
G1/4 external thread
Internal M5 thread
Stainless-steel wetted parts
400 bar pressure rating
1000 bar burst pressure
50 million pressure cycles
IP67 protection
M12 connector
Hydraulic systems
Pneumatic systems
Cooling circuits
Lubrication systems
Pump pressure monitoring
Machine tools
Industrial machinery
Pressure-control systems
The PK7531 is designed for applications requiring simple and dependable pressure switching. The two outputs can be used to monitor separate pressure thresholds. The mechanical setting rings make adjustment convenient during commissioning. LED indicators provide immediate confirmation of switching status. This reduces setup complexity in systems that do not require analogue or IO-Link communication.
Install the PK7531 through its G1/4 external process connection using the specified sealing arrangement. Use the setting rings to establish the required pressure threshold after installation. Ensure the applied pressure remains below the specified pressure rating. Check the process connection and M12 connector during routine maintenance. Verify the switching point periodically where pressure conditions are critical.
| Specification | Details |
|---|---|
| Model | PK7531 |
| Product type | Electronic pressure switch |
| Order code | PK-250-SFG14-QSPKG/US/ /W |
| Measuring principle | Electronic pressure measurement |
| Measuring range | 0…250 bar |
| Pressure type | Relative |
| Media | Liquids and gases |
| Process connection | G1/4 external thread |
| Additional connection | M5 internal thread |
| Pressure rating | 400 bar |
| Minimum burst pressure | 1000 bar |
| Medium temperature | -25…80 °C |
| Operating voltage | 9.6…32 V DC |
| Current consumption | <25 mA |
| Protection class | III |
| Reverse polarity protection | Yes |
| Digital outputs | 2 |
| Electrical design | PNP |
| Output function | Normally open |
| Output current | 500 mA |
| Voltage drop | <2 V |
| Switching frequency | 100 Hz |
| Short-circuit protection | Yes, pulsed |
| Overload protection | Yes |
| Switch-point adjustment | Setting rings |
| Hysteresis | 5 bar |
| Ambient temperature | -25…80 °C |
| Storage temperature | -40…100 °C |
| Protection rating | IP67 |
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