PW222 High-End Digital Pressure Switch | 5-Digit OLED Display
Upgrade your machine interface with the PW222. Featuring a brilliant 5-digit OLED display and dual-mode outputs, this controller offers unparalleled clarity and precision for high-end industrial automation.
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Superior Clarity: High-contrast OLED screen with English/Chinese menu support.
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Dual Mode Output: Simultaneous analog (4-20mA/0-10V) and dual switching (PNP/NPN) signals.
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Smart Control: Automatic control direction recognition and return difference (hysteresis) logic.
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Flexible Installation: 330° rotatable head for optimal viewing angles in tight spaces.
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Rugged Design: IP67-rated housing with AISI 304/316L wetted parts.
Description
The PW222 Digital Pressure Switch represents the next generation of process monitoring. Unlike traditional LED displays that can be difficult to read in bright or angled environments, the PW222 features a state-of-the-art 5-digit OLED screen. This ensures that operators can monitor critical system pressures with absolute clarity, even from a distance or at sharp angles.
Advanced Signal Integration
Designed for maximum flexibility in modern control cabinets, the PW222 eliminates the need for multiple sensors. It provides a triple-signal architecture: an analog output for continuous monitoring (PLC) and two independent switching outputs (PNP/NPN) for direct machine control. With built-in IO-Link and RS485 compatibility, it is fully prepared for Industry 4.0 integration.
Intelligent Programming
Gone are the days of manual potentiometer adjustments. The PW222 utilizes an integrated microprocessor, allowing for precise calibration of zero points, full range, and decimal separators via a simple three-key interface. Its smart logic automatically recognizes the required control direction and manages hysteresis settings to prevent “chatter” in your hydraulic or pneumatic systems.
Built for the Modern Factory
With its 330° rotatable head, the PW222 adapts to your machine, not the other way around. Whether installed vertically or horizontally, the display can be oriented for perfect visibility. The combination of high-strength engineering plastic and AISI 304/316L stainless steel ensures durability in environments ranging from -20°C to +80°C.
Features
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High-Contrast OLED Interface: Unlike standard segmented LED displays, the 5-digit OLED screen provides crystal-clear rendering of pressure values and full-text menus. This allows for intuitive, manual-free configuration directly at the sensing point.
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Precision Signal Processing: The integrated microprocessor supports both 2-point and 3-point calibration. Zero point and full-scale values are digitally adjustable, eliminating the mechanical drift associated with traditional potentiometer-based switches.
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Comprehensive Electronic Protection: Engineered for maximum uptime, the internal circuitry is protected against reverse polarity, overloads, and short circuits. This ensures a high MTBF (Mean Time Between Failure) even in unstable industrial power grids.
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Adaptive Switching Logic: The PW222 features intelligent control direction recognition. With programmable response delays (0.01s to 2.0s), it effectively filters out transient pressure spikes in hydraulic systems, preventing “chatter” and false alarms.
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Rotational Mechanical Versatility: While the M12 electrical connector remains securely fixed to prevent cable strain, the housing head can be rotated 330°. This allows for a clean, professional cable run while maintaining a perfect line of sight to the display.
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Industry 4.0 Compatibility: Prepared for the digital factory, the PW222 supports optional RS485 Modbus or IO-Link communication, allowing for remote parameter setting and diagnostic data transmission.
Specification
| Feature | Specification |
| Pressure Range | -0.1 MPa … 0 … 100 MPa |
| Display | 5-Digit High-Brightness OLED |
| Switch Output | 2x PNP / NPN (Setable, NO/NC) |
| Analog Output | 4-20mA / 1-5V / 0-10V (Programmable) |
| Accuracy | ≤ 0.5% FS (Standard) / 0.1% (Custom) |
| Supply Voltage | 12 … 30 VDC (24V Standard) |
| Response Time | Adjustable: 0.01s ~ 2.0s |
| Media Temperature | -20°C to +85°C |
| Protection Class | IP67 |
| Communication | IO-Link / RS485 (Optional) |
| Materials | Case: Stainless Steel 304 / Engineering Plastic |
| Electrical Conn. | M12x1 Connector |
FAQ
1. Is the OLED display better than standard LED? Yes. OLED provides much higher contrast and wider viewing angles. It also allows for full text (English/Chinese) menus, making it much easier to program than LED screens that rely on cryptic 4-letter codes.
2. Can I use this for both hydraulic oil and water? Absolutely. With its AISI 304/316L wetted parts, the PW222 is compatible with most non-corrosive liquids and gases. For highly corrosive media, please contact our technical team for specialized material options.
3. What is the benefit of the 330° rotatable head? In tight Swiss machinery or complex piping, sensors are often installed in awkward positions. The rotatable head allows you to turn the display toward the operator without loosening the pressure connection, ensuring both a leak-free seal and perfect visibility.
