Differential pressure transmitters

electronic differential pressure switch and transmitter

DPI

Electronic differential pressure switch and transmitter

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

 

NOTE! DPI will be discontinued with the following schedule:

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.

Technical details

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
Product datasheet Installation instructions EU Declaration of Conformity UK Declaration of Conformity

DPI

Example
DPI±500-2R-D

Model

Product series

DPI
Electronic differential pressure switch and transmitter
DPI

Measuring ranges (Pa)

±500
-100...100 / -250...250 / -300...300 / -500...500
2500
0...100 / 0...250 / 0...1000 / 0...2500
±500

Number of relays

-1R
One relay
-2R
Two relays
-1R

Zero point calibration

-AZ
With autozero calibration
Standard with pushbutton manual zero point calibration
-AZ

Display

-D
With display
-D

Other Differential pressure transmitters: