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Electronic differential pressure switch and transmitter DPI

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

Description

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, L min 1 kΩ
Relay output 1 (250 VAC / 30 VDC / 6 A)
Optional relay output 2 (250 VAC / 30 VDC / 6 A)
Operating temperature: -10…+50 °C
Response time: 0,5…10 s
Protection standard: IP54

DPI : 

DPI-Series_Datasheet-6.0

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DPI-Series_Manual-5.0

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