The DPI series electronic pressure measuring devices are engineered for building automation in HVAC/R industry. The most technologically advanced and versatile electronic differential pressure switches on the market, combining up to two relay outputs and 0–10 V output options.
The DPI includes the following field selectable features:
• Configurable switching point: Open on rise or fall in pressure
• Hysteresis of setpoint
• Measurement units (Pa, kPa, mmWC, inWC, mbar)
• Measurement range (4 ranges per model)
• Output signal (0−10 V, NO/NC)
• Span and zero point calibration
End of Sale date (EOS) 30.6.2025 or until the stock last, whichever comes first
End of Delivery date (EOD) 31.12.2025
Last Date of Support (LDS) 31.12.2030
DPI can be replaced with DPI-24 products available in Produal product portfolio.
Accuracy (from FS): | ±1.5 % (±0.7 % with span point calibration) (including: general accuracy, temperature drift, linearity, hysteresis, and repetition error) |
Long term stability, typical 1 year: | ±1 Pa (±8 Pa without autozero element -AZ) |
Zero point calibration: | automatic with autozero element (-AZ) or by pushbutton |
Supply voltage: | 21–35 VDC / 24 VAC ±10 % (without -AZ option) 24 VDC ±10 % / 24 VAC ±10 % (with -AZ option) |
Current consumption: | 35 mA + relays (7 mA each) + AZ (20 mA) + 0…10 V output (10 mA) |
Output signals: | 0…10 V Relay output 1 (250 VAC / 30 VDC / 6 A) Optional relay output 2 (250 VAC / 30 VDC / 6 A) |
Operating temperature: | -10...+50 °C (with autozero calibration -5...+50 °C) |
Response time: | 0.5...10 s |
Protection standard: | IP54 |
Example
DPI±500-2R-D
Product series
Measuring ranges (Pa)
Number of relays
Zero point calibration
Display