Pressostato differenziale elettronico e trasmettitore DPI
Strumentazione di misura digitale: Pressostati DPI
I Pressostati elettronici della serie DPI, dispositivi di misurazione, sono progettati per la building automation industriale in HVAC. Sono gli interruttori elettronici di pressione differenziale tecnologicamente più avanzati e versatili sul mercato, combinando fino a due uscite a relè 0-10V. Il DPI comprende campo le seguenti funzioni selezionabili:- Punto di commutazione configurabile
- Isteresi del setpoint
- Unità di misura (Pa, kPa, mmWC, inWC, mbar)
- Campo di misura
- Segnale di uscita (0-10 V, NO / NC)
- Calibrazione Span and zero point

Technical specifications
Bursting pressure: 30 kPa Suitable media: Air and non-aggressive gases Measuring element: Piezoresistive Accuracy (%/FS*) ±0,7 % (±1,5 % initial) *) %/FS from highest pressure range (including: general accuracy, temperature drift, linearity, hysteresis and repetition error). Initial value is the factory calibration accuracy; better accuracy can be achieved with span point calibration. Electrical interface:- Supply voltage: 21–35 VDC / 24 VAC ± 10 %,
- with AZ option: 24 VDC / VAC ± 10 %
- Current consumption:
- 35 mA + relays (7 mA each) + AZ (20 mA) +
- 0…10 V output (10 mA)
- Output signals, basic version:
- Relay output (250 VAC / 30 VDC / 6 A)
- 0…10 V, L min 1 kW
- Output signals, 2R version:
- Relay output 1 (250 VAC / 30 VDC / 6 A)
- 0…10 V, L min 1 kW
- Housing: ABS
- Cover: PC
- Pressure connections: ABS
- Duct connectors: ABS
- Tubing: PVC
- Electrical connections: Power and 0…10 V out, 3 x screw terminals, max 1.5 mm2
- Relays 2 x SPDT, 6 x screw terminals, max 1.5 mm2
- Cable entries: M16 and M20
- Pressure connections: Male, Ø 5,0 mm and 6,3 mm
Dimensions: 89.0 x 86.5 x 37.1 mm General ambient condition:
- Temperature range:
- Operation: -10…+50 °C (-5…+50 °C for -AZ model)
- Storage: -20…+70 °C
- Ambient humidity: 0 to 95 % rH
Safety: Protection standard: IP54
Conformance:
- Meets the requirements for CE marking:
- EMC Directive 2004/108/EY
- Rohs Directive 2002/95/EY