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Eco differential pressure gauge

Design
Per EN 837-3 and ventilation and air-conditioning (VAC) regulations

Nominal size in mm
110

Accuracy class
±3 % (±5 % with scale range ≤ 0 ... 125 Pa)

Scale ranges
0 … 50 Pa to 0 … 12,500 Pa -25 … +25 Pa to -1,500 … +1,500 Pa further plus/minus ranges on request

Pressure limitation
Steady: Full scale value
Fluctuating: Full scale value

Air flow meter For ventilation and air-conditioning Model A2G-25

The model A2G-25 air flow meter is used for measuring air flows of gaseous media in ventilation and air-conditioning applications.
The air flow is measured by determining the differential pressure and multiplying it with the K factor. The K factor depends on the ventilator used or, when using pipe/duct measuring probes, on the size and number of probes.
The K factors of all radial ventilators from common manufacturers are already programmed in the menu of the A2G-25. When using the model A2G-FM measuring probe or a different ventilator K factor, this can be quickly and easily entered in the menu of the instrument.
Electrical analogue output signals for both measurement parameters (DC 0 ... 10 V or 4 ... 20 mA; adjustable in the instrument via jumpers) or the digital Modbus® versions enable the direct connection to control systems or the building automation system.
The measured differential pressure is also shown on the LC display and transmitted via the analogue or digital output signals. Thus the A2G-25 combines two measurements in one instrument. The LC display and the clear menu navigation enable a time-saving and simple commissioning.
With the A2G-25, air flows up to 200,000 m3/h and differential pressures up to 7,000 Pa can be measured.

Eco differential pressure gauge Model A2G-05

Design Per EN 837-3 and ventilation and air-conditioning (VAC) regulations Nominal size in mm 110
Accuracy class ±3 % (±5 % with scale range ≤ 0 ... 125 Pa)
Scale ranges 0 … 50 Pa to 0 … 12,500 Pa -25 … +25 Pa to -1,500 … +1,500 Pa further plus/minus ranges on request Pressure limitation Steady: Full scale value Fluctuating: Full scale value
Overpressure safety 20 kPa Max. working pressure (static pressure) 20 kPa Permissible temperature Ambient: -30 … +80 °C Medium: -16 … +50 °C
Temperature effect When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.5 %/10 K of full scale value
Ingress protection IP 54 per EN 60529 / lEC 529

Air flow meter For ventilation and air-conditioning Model A2G-25

The model A2G-25 air flow meter is used for measuring air flows of gaseous media in ventilation and air-conditioning applications.
The air flow is measured by determining the differential pressure and multiplying it with the K factor. The K factor depends on the ventilator used or, when using pipe/duct measuring probes, on the size and number of probes. The K factors of all radial ventilators from common manufacturers are already programmed in the menu of the A2G-25. When using the model A2G-FM measuring probe or a different ventilator K factor, this can be quickly and easily entered in the menu of the instrument.
Electrical analogue output signals for both measurement parameters (DC 0 ... 10 V or 4 ... 20 mA; adjustable in the instrument via jumpers) or the digital Modbus® versions enable the direct connection to control systems or the building automation system.
The measured differential pressure is also shown on the LC display and transmitted via the analogue or digital output signals. Thus the A2G-25 combines two measurements in one instrument. The LC display and the clear menu navigation enable a time-saving and simple commissioning. With the A2G-25, air flows up to 200,000 m3/h and differential pressures up to 7,000 Pa can be measured.

Low Pressure Differential Pressure Gauges Type A2G-10, air2guide WIKA Datasheet A2G-10 · 6/2015 Page 1 of 2

„ Ingress protection, NEMA 4 (IP 65)
„ Red mark pointer
„ Internationally recognized traceable calibration certificate
„ Measuring hose PVC or silicone, inner diameter 4 or 6 mm, length 25 m PVC or silicone tube ⅛” or ¼” inside diameter
„ 2 duct connectors
„ Output signal 4... 20 mA, 2-wire, power supply DC 14 V or output signal 0 ...10 V, 3-wire, power supply DC 15V (see datasheet A2G-15)
„ Without mounting case

Air velocity transmitter Model A2G-20

Design EMC directive: 2004/108/EC RoHS directive: 2002/95/EC Low voltage directive: 2006/95/EC WEEE directive: 2002/96/EC Measuring ranges
Air velocity: Measuring range 0 … 2 m/s, 0 ... 10 m/s and 0 ... 20 m/s (settable at the instrument via jumpers) Temperature: 0 … 50 °C
Accuracy Air velocity: Measuring range 0 … 2 m/s: < 0.1 m/s +5 % of measured value Measuring range 0 ... 10 m/s: < 0.5 m/s +5 % of measured value Measuring range 0 ... 20 m/s: < 1.0 m/s +5 % of measured value Temperature: < 0.5 °C (v > 0.5 m/s

Differential pressure switch For ventilation and air-conditioning Model A2G-40

The model A2G-40 differential pressure switch, in the Δp function, monitors filters and ventilators in ventilation ducts and air shutters. Five pressure range increments are available. The differential pressure switch is characterised by its simple mounting and high reliability

Differential pressure sensor For ventilation and air-conditioning Model A2G-50

The model A2G-50 differential pressure sensor is used for measuring differential pressures of gaseous media in ventilation and air-conditioning applications.
It is based on the piezoresistive measuring principle. This compact differential pressure sensor offers excellent performance and high quality at an attractive price.
Electrical analogue output signals for both measurement parameters (0 ... 10 V or 4 ... 20 mA; adjustable in the instrument via jumpers) or the digital Modbus® versions enable the direct connection to control systems or the building automation system.