Features and Benefits of the BD Sensors DSP 400P Pressure Switch
High-Precision Pressure Measurement and Switching
The DS 400P provides highly accurate pressure measurement with standard accuracy of 0.35% FSO and an optional 0.25% FSO, ensuring reliable process control. It supports nominal pressure ranges from vacuum to 40 bar, suitable for a wide variety of industrial applications.Robust and Hygienic Stainless Steel Construction
Featuring stainless steel 316L pressure ports and a flush welded diaphragm, the device is designed for hygienic applications, particularly in food and pharmaceutical industries. The surface roughness of media-wetted parts is optimized for easy cleaning and compliance with hygiene standards.Configurable Digital Display and Contacts
The rotatable 4-digit LED display allows clear indication of measured values and can be configured for different switching points, hysteresis, and delay times. The device supports one or two independent PNP contacts, enabling flexible control schemes.Versatile Output Options Including Intrinsic Safety
Optional analogue outputs (4-20 mA) are available in 2-wire or 3-wire configurations, with intrinsic safety versions for use in explosive atmospheres (ATEX certified). This versatility allows integration into various control systems.Durability and Environmental Resistance
The DS 400P is designed to withstand vibration, shock, and electromagnetic interference, with ingress protection rated at IP67. It operates reliably across a wide temperature range and includes options for cooling elements to handle high-temperature media.
Technical Specifications of the DS 400P Intelligent Electronic Pressure Switch
| Specification | Details |
|---|---|
| Nominal Pressure Range | 0 … 100 mbar up to 0 … 40 bar |
| Accuracy | Standard: ≤ ±0.35% FSO; Option: ≤ ±0.25% FSO (for pN ≥ 0.4 bar) |
| Pressure Port Material | Stainless Steel 1.4404 (316L) |
| Diaphragm Material | Stainless Steel 1.4435 (316L), flush welded |
| Contacts | 1 or 2 independent PNP contacts, 125 mA max switching current |
| Display | Rotatable 4-digit LED, range -1999 to +9999, digit height 10 mm |
| Analogue Output (optional) | 4-20 mA, 2-wire or 3-wire, intrinsic safety version available |
| Response Time | < 10 ms (2-wire), < 30 ms (3-wire) |
| Operating Temperature Range | Medium: -40 to 125 °C (silicone oil filling), with cooling element up to 300 °C |
| Protection Class | IP67 |
| Mechanical Stability | Vibration: 20 g RMS; Shock: 500 g / 1 ms half sine |
| Explosion Protection | ATEX certified (Ex ia IIC T4 Ga, Ex ia IIIC T135 °C Da) |
| Weight | Minimum 500 g |
| Certificates | EHEDG, Inspection certificate 3.1, Test report 2.2 according to EN 10204 |
Suitable Applications for the DS 400P Electronic Pressure Switch
The DS 400P is ideally suited for applications requiring precise and reliable pressure monitoring and switching in hygienic and industrial environments. Its robust stainless steel construction and hygienic design make it perfect for sectors where cleanliness and safety are paramount. The configurable contacts and display, along with optional analogue outputs and intrinsic safety versions, allow seamless integration into complex process control systems.
Suitable applications include:
- Food and beverage processing lines requiring hygienic pressure monitoring
- Pharmaceutical manufacturing with strict hygiene and safety standards
- Chemical and petrochemical plants needing explosion-proof pressure switches
- Hydraulic and pneumatic systems requiring precise pressure control
- Water and wastewater treatment plants for reliable pressure detection
- General industrial automation and process control systems