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
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
