HK Instruments DPI2500-1R-D Electronic differential pressure switch & transmitter (0-2500 Pa; with display and one relay)

Measurement ranges (Pa): 100 / 250 / 1000 / 2500 Pa

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: ±8 Pa

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