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 specifications

Measurement ranges: ±100 Pa / ±250 / ±300 / ±500 Pa (field selectable via menu)
Accuracy: ±1.5 % (±0.7 %*)
Long term stability: Typical 1 year With autozero: ±1 Pa Without autozero: ±8 Pa
Electrical connections:
in/out:
Terminal block (24 V, GND, 0–10 V)
Wire: 0.2–1.5 mm2 (12–24 AWG)
Relay 1:
Terminal block (NC, COM, NO)
Wire: 0.2–1.5 mm2 (12–24 AWG)
Relay 2:
Terminal block (NC, COM, NO)
Wire: 0.2–1.5 mm2 (12–24 AWG)
Electrical
Circuit: 3-wire (24 V, GND, 0–10 V)
Input:
Without autozero: 21–35 VDC/ 24 VAC, ±10 %
With autozero: 24 VAC or VDC, ±10 %
Output:
Analog: 0–10 V
Relay 1: 250 VAC / 30 VDC / 6 A
Relay 2: 250 VAC / 30 VDC / 6 A
Adjustable switching point and hysteresis
Zero/Span output calibrated within ±0.025 V
Resistance minimum: 1 kΩ
Current consumption: 35 mA + relays (7 mA each) + AZ circuit (20 mA)
+ 0–10 V output (10 mA)