dpi
electrionic differential pressure switch and transmitter
DPI
The DPI is an electronic differential pressure switch and transmitter with up to two relay outputs.
USAGE & APPLICATIONS
The DPI is used for measuring and indicating low pressures of air and non-combustible gases in order to monitor and control building automation, HVAC and cleanroom systems.
Technical Specifications
Accuracy (from FS):
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Long term stability, typical 1 year:
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Zero point calibration:
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Supply voltage:
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Current consumption:
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Output signals:
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Operating temperature:
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Response time:
Protection standard:
±1.5 % (±0.7 % with span point calibration) (including: general accuracy, temperature drift, linearity, hysteresis, and repetition error)
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±1 Pa (±8 Pa without autozero element -AZ)
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automatic with autozero element (-AZ) or by using the buttons on the lid
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21–35 VDC / 24 VAC ±10 % (without -AZ option)
24 VDC ±10 % / 24 VAC ±10 % (with -AZ option)
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35 mA + relays (7 mA each) + AZ (20 mA) + 0…10 V output (10 mA)
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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)
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-10…+50 °C (with autozero calibration -5...+50 °C)
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0.5...10 s
IP54