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OPP-SENS® Differential air pressure

volume flow transmitter
Type Item no. ADG Euro / pc.

OPP-SENS® Differential air pressure PV… See See
volume flow transmitter following following
for measuring pressure differential and volume flow of page page
non-combustible and non-aggressive gases and air.
With manual zero point setting.
Selectively configurable from 0 – 1,000 Pa and 0 – 4,000 Pa,
depending on desired accuracy.
Adjustable linear or square root extraction output of pressure
differential on analog transmitters (factory setting: linear).
The data is always transmitted in the form of registers in the
bus version.
Volume flow is calculated by entering correction factor k or
selecting a fan manufacturer and is output as a linear output
signal or via bus.
Volume flow measurement range: 0 – 99,000 m³ / h.
Display and control unit with autoadapt and capacitive
button (option). This enables the NFC function, allowing easy
sensor parameterization via a smartphone.
5-point calibration: linear interpolation of the output
curve over 5 user-defined points.
10 offset points: linear shift of characteristic curve
the output signal via 10-level rotary switch.
Captive lid with 8-way positioning.
Optional integration of fan walls/fan grids.
10 pressure sensor ranges selectable with rotating switch:

Version AD1 (0 – 1,000 Pa):
0 – 100 0 – 200 0 – 300 0 – 400
0 – 500 0 – 600 0 – 700 0 – 800
0 – 900 0 – 1,000 Pa* *factory setting

Version AD4 (0 – 4,000 Pa):
0 – 400 0 – 800 0 – 1,200 0 – 1,600
0 – 2,000 0 – 2,400 0 – 2,800 0 – 3,200
0 – 3,600 0 – 4,000 Pa* *factory setting

Power supply:
2-wire 24 V DC
3-wire / Modbus / BACnet 24 V AC / DC
Outputs:
2-wire 4 – 20 mA
3-wire 0 – 10 V or 4 – 20 mA
switchable or bus
Burst pressure AD1: 15 kPa
Burst pressure AD4: 40 kPa
Permiss. amb. cond.: -20 – 70 °C, 0 – 95 % RH
(non-condensing)

Permiss.
media temperature: -5 – 65 °C
Error Margin: ±1 % of sensor range limit value
at -5 – 65 °C
Housing: IP 65 including seal
Plastic gray / yellow
Cable gland: M16
Terminals: Spring terminals 0.2 – 1.5 mm2

52 | Catalog 2025 | Sensors To our online catalog: www.oprg.de/en/support/download-center