The IFM PY9933 is a pressure sensor with a four-digit display for industrial pressure monitoring. It measures relative pressure from 0 to 25 bar and uses a G1/4 internal-thread process connection. Two programmable digital outputs provide flexible pressure switching functions. PNP/NPN operation, short-circuit protection and reverse-polarity protection support reliable control-system integration. The sensor has IP67 protection and a robust stainless-steel construction.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The PY9933 provides a 0–25 bar relative-pressure measuring range. Set and reset points can be configured in 0.1 bar increments. Its pressure rating is 150 bar, with a minimum burst pressure of 350 bar. The sensor is intended for industrial applications involving liquids and gases. These characteristics make it suitable for general machine and process pressure monitoring.
The PY9933 provides two digital switching outputs. Each output can be parameterised as normally open or normally closed. The electrical design supports PNP/NPN operation, while the switching output can handle up to 250 mA continuously. Switching frequency is below 170 Hz. Short-circuit and overvoltage protection improve electrical reliability.
A four-digit alphanumeric display provides measured-value and function indication. Three green LEDs indicate the display unit and operating status. Two yellow LEDs indicate switching status. Programming is performed using the integrated programming button. Adjustable parameters include hysteresis, switching logic, delays, damping and display units.
0…25 bar measuring range
Relative pressure measurement
Two digital outputs
PNP/NPN operation
NO/NC programmable
250 mA switching current
170 Hz maximum switching frequency
Four-digit alphanumeric display
G1/4 internal thread
M12 A-coded connector
Gold-plated contacts
Reverse-polarity protection
Overvoltage protection
Short-circuit protection
IP67 protection
Industrial pressure monitoring
Machine pressure control
Hydraulic systems
Pneumatic systems
Liquid pressure monitoring
Gas pressure monitoring
Process machinery
Automation systems
The PY9933 uses a cylindrical housing with a diameter of 34 mm and a length of approximately 91.5 mm. Stainless steel, PC, PBT, PEI and FPM materials are used in its construction. Wetted components include stainless steel, ceramic and FPM. The G1/4 internal thread provides a compact process connection. Gold-plated M12 contacts support reliable electrical connection.
The sensor operates from -20 to 80 °C, while storage temperature extends from -40 to 100 °C. IP67 protection protects the electronics against dust and water ingress. The sensor withstands 50 g shock and 20 g vibration according to the specified test conditions. An integrated watchdog and overvoltage protection improve operational reliability. These characteristics make it suitable for demanding industrial machinery.
| Specification | PY9933 |
|---|---|
| Product type | Pressure sensor with display |
| Product code | PN-025-RBR14-QFRKG/US/ /V |
| Product status | Archive |
| Pressure type | Relative |
| Measuring range | 0…25 bar |
| Measuring range psi | 0…363 psi |
| Measuring range MPa | 0…2.5 MPa |
| Process connection | G1/4 internal thread |
| Digital outputs | 2 |
| Electrical design | PNP/NPN |
| Output function | NO/NC programmable |
| Output current | 250 mA |
| Voltage drop | 2 V |
| Switching frequency | <170 Hz |
| Short-circuit protection | Yes |
| Overvoltage protection | Yes, <40 V |
| Reverse polarity | Yes |
| Operating voltage | 18–36 V DC |
| Current consumption | <50 mA |
| Power-on delay | 0.3 s |
| Set point range | 0.2…25 bar |
| Reset point range | 0.1…24.9 bar |
| Setting increment | 0.1 bar |
| Switch-point accuracy | <±0.5% |
| Repeatability | <±0.1% |
| Long-term stability | <±0.05% |
| Medium temperature | -25…80 °C |
| Ambient temperature | -20…80 °C |
| Storage temperature | -40…100 °C |
| Protection rating | IP67 |
| Minimum burst pressure | 350 bar |
| Pressure rating | 150 bar |
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