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):
Long term stability, typical 1 year:
Zero point calibration:
Supply voltage:
Current consumption:
Output signals:
Operating temperature:
Response time:
Protection standard:
±1.5 % (±0.7 % with span point calibration) (including: general accuracy, temperature drift, linearity, hysteresis, and repetition error)
±1 Pa (±8 Pa without autozero element -AZ)
automatic with autozero element (-AZ) or by using the buttons on the lid
21–35 VDC / 24 VAC ±10 % (without -AZ option)
24 VDC ±10 % / 24 VAC ±10 % (with -AZ option)
35 mA + relays (7 mA each) + AZ (20 mA) + 0…10 V output (10 mA)
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)
-10…+50 °C (with autozero calibration -5...+50 °C)
0.5...10 s
IP54