Categories Pressure, AIR
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.
Brand : HK Instruments
| 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 |
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