BD Sensors DS 217 Pressure Switch Features
Welded Stainless-Steel Sensor for Durability
All-welded measuring cell and stainless-steel wetted parts (17‑4PH diaphragm; 316Ti/304 housing) provide long service life, chemical resistance to typical industrial media, and zero elastomer process seals at the sensor.Wide Pressure Range with Excellent Safety Margins
Nominal ranges from 0…6 to 0…600 bar, with generous overpressure (up to 1,200 bar at pN 400 bar) and burst pressure ratings (up to 3,000 bar at pN 400 bar), supporting robust process protection.Integrated, Rotatable LED Display
Bright 4-digit red LED (7 mm digits) with programmable damping (0.3–30 s) and update (0–10 s) allows clear local indication and easy commissioning even when the instrument is rotated for access.Flexible Switching and Analog Output
Standard 1 PNP contact; optional 2 independent PNP contacts and a 4…20 mA (3‑wire) analog output for supervisory control and data acquisition. Short-circuit resistant contacts rated to 125 mA.Reliable Measurement and Control Performance
Accuracy ≤ ±0.5% FSO; switching point accuracy ≤ ±1.5% FSO; repeatability ≤ ±0.5% FSO; 10 Hz measuring rate; configurable switching delays 0…100 s; >100 million switching cycles.Built for Harsh Industrial Environments
Withstands vibration (10 g, 25–2000 Hz) and shock (500 g/1 ms). Operates across wide medium and ambient temperatures with strong EMC immunity per EN 61326. Oxygen application option available.
Technical Specifications of the DS 217 Electronic Pressure Switch (Welded Stainless Sensor)
| Parameter | Specification |
|---|---|
| Sensor principle | Welded stainless-steel measuring cell |
| Accuracy (IEC 60770) | ≤ ±0.5% FSO |
| Switching point accuracy | ≤ ±1.5% FSO |
| Repeatability | ≤ ±0.5% FSO |
| Measuring rate | 10 Hz |
| Nominal pressure ranges (gauge) | 0…6, 10, 16, 25, 40, 60, 100, 160, 250, 400, 600 bar |
| Overpressure (static) | 12…1,200 bar, range dependent (e.g., pN 600 bar → 1,200 bar) |
| Burst pressure | 30…3,000 bar, range dependent (e.g., pN 600 bar → 3,000 bar) |
| Vacuum resistance | Unlimited |
| Switching outputs | Standard: 1 PNP; Optional: up to 2 independent PNP contacts |
| Contact rating | Max. 125 mA; short-circuit resistant |
| Switching frequency | Max. 10 Hz |
| Switching delay | 0…100 s (programmable) |
| Analog output (option) | 4…20 mA, 3‑wire; VS = 24 VDC ±10%; Rmax = 500 Ω |
| Analog accuracy | ≤ ±0.5% FSO |
| Influence effects | Supply: 0.05% FSO/10 V; Load: 0.05% FSO/kΩ |
| Thermal error | ≤ ±0.5% FSO/10 K (compensated −25…85°C) |
| Temperature ranges | Medium: −25…125°C; Electronics/Ambient: −25…85°C; Storage: −40…85°C |
| Vibration / Shock | 10 g RMS (25–2000 Hz) / 500 g (1 ms) |
| Wetted materials | Pressure port: SS 1.4571 (316Ti); Diaphragm: SS 1.4542 (17‑4PH) |
| Housing / Display housing | SS 1.4301 (304) / PA 6.6 + polycarbonate |
| Seals (sensor) | None at the sensor (welded) |
| Display | 4‑digit red LED, 7 mm digits; −1999…+9999; rotatable; damping/update programmable |
| Weight | Approx. 160 g |
| Electrical protection | Short-circuit protection (permanent), reverse polarity (no damage) |
| EMC | EN 61326; CE: EMC Directive 2014/30/EU; PED 2014/68/EU (module A) for qualifying ranges |
| Electrical connection | M12x1 (5‑pin, plastic) |
| Mechanical connections | G1/2″ EN 837; G1/4″ EN 837; 1/4″ NPT |
| Options | Second PNP contact; 4–20 mA output (3‑wire); oxygen application |
Note: Capability values such as overpressure/burst are range dependent. Refer to ordering options for connection and output combinations.
Suitable Applications for the DS 217 OEM Pressure Switch
The DS 217 is ideal wherever a compact, rugged pressure switch with local indication, flexible contacts, and optional analog feedback is required. Its welded stainless-steel sensor, generous pressure ratings, and oxygen-ready variants make it a versatile choice for OEMs and plant engineers.
- Plant and Machine Engineering: Pump/compressor protection, filter monitoring, alarm and interlock switching, and general hydraulic/pneumatic control.
- OEM Skids and Packages: Compact switch-and-display solution with optional 4–20 mA feedback for PLC/SCADA integration.
- Energy and Utilities: Boiler feed, auxiliary systems, and balance-of-plant pressure supervision.
- Process Gas and Oxygen Systems: Oxygen-compatible configurations for clean gas distribution and safety monitoring.
- Industrial Automation: Safety and limit switching, pressure threshold control, and fault annunciation.
- HVAC and Refrigeration: High/low pressure cutouts, condenser/evaporator monitoring, and system protection (within materials and media limits).