# חיישן זרימת אוויר ללחץ דיפרנציאלי — A2G-520

> לאוורור ומיזוג אוויר

- קוד קטלוגי: a2g_520
- דגם: A2G-520
- קטגוריה: מדידת ספיקה › Air flow sensors
- עמוד המוצר: https://avigan.com.ua/wika/he/products/a2g_520
- מחיר: לפי בקשה
- ספק: AVIGAN (TOV VIKA Prylad), שותף רשמי של WIKA באוקראינה

## תיאור

הדגם A2G-520 מודד את הפרש הלחצים על רכיבים כגון מאווררים או צינורות פיטו, למשל דגם A2G-FM, ומחשב את זרימת האוויר באמצעות ה- ...

## יישומים

- Measurement and monitoring of ventilator air flow
- Measurement and monitoring of air flow in ventilation pipes and ventilation ducts in conjunction with A2G-FM
- Measurement of differential pressure, gauge pressure and vacuum

## תכונות מיוחדות

- Integrated air flow calculation based on all common formulas
- Optimisation of air flow measurement through additional pressure and/or temperature compensation
- IIoT-ready and future-proof thanks to analogue and digital signal transmission (Modbus ® ) as well as wireless (LoRaWAN ® )
- Time-saving instrument configuration and display of current measured values on the smartphone via NFC or WIKA app
- Precise measuring results, even under extreme ambient conditions

## מפרט טכני

| פרמטר | ערך |
|---|---|
| model | A2G-520 |
| product family | A2G |
| short description | Differential pressure air flow sensor for ventilation and air-conditioning, with integrated air flow calculation, IIoT-ready via Modbus® and LoRaWAN®. |
| subcategory | differential pressure |
| certifications | CE; RoHS; WEEE; EMC; RED |
| ambient temp | -40 … 60 °C |
| ip rating | IP65 |
| weight kg | 0.32 |
| languages in datasheet | en; de |
| technology | differential pressure |
| flow ranges | 0 … 999999 m³/h |
| accuracy percent | 0.5 |
| process connections | connecting nozzle Ø 5 mm; connecting nozzle Ø 7 mm; hose with inner diameter 4 ... 6 mm; 2 x connecting nozzle Ø 5 mm; 2 x connecting nozzle Ø 7 mm; For hoses with inner diameter 4 ... 6 mm; 2x connecting nozzle Ø5mm / Ø7mm; For hoses with inner diameter 4...6mm |
| wetted parts material | PC; ABS; PC GF20; PCGF20 |
| process temp | -40 … 60 °C |
| process pressure max bar | 10 |
| output signal | 0 ... 10 V; 0 ... 5 V; 2 ... 10 V; 4 ... 20 mA; Modbus® RTU; LoRaWAN®; Relay; relay; Modbus RTU; LoRaWAN; 0...10V; 0...5V; 2...10V; 4...20mA |
| power supply | AC 24 V ±10 % / 50 Hz / 60 Hz, DC 24 V ±10 % |

## טבלאות מגיליון הנתונים

| Specifications | 1 x analogue output 3-wire (multi range) | Modbus ® RTU (multi range) |
|---|---|---|
| Display | O | O |
| Additional analogue output | O | O |
| Signal inputs | O | O |
| Relay | O | O |
| Automatic zero point setting | O | O |
| Wireless signal (LoRaWAN ® ) | O | O |
| NFC |  |  |
| Configure | ü | ü |
| Read | ü | ü |

### Basic information

| Case dimensions | → See dimensions on page 6 |
|---|---|
| Process connection 1) |  |
| 2 x connecting nozzle | Ø 5 mm[0.19 in] /Ø 7 mm[0.27 in] |
| For hoses | With inner diameter 4 ... 6 mm[0.15 ... 0.23 in] |
| Case 1) | PC GF20 |
| Cover with insert sheet 1) | PC, transparent; ABS, RAL 9010 |
| Mounting plate 1) | PC, RAL 7035 |
| Weight (depending on version) | 260 ... 320 g [0,573 ... 0,705 lb] |

### Operating range 2)

| ±250 Pa | ±1 inWC |
|---|---|
| -25 …+25 | -0.1 ... +0.1 |
| -50 …+50 | -0.2 ... +0.2 |
| -100 …+100 | -0.4 ... +0.4 |
| -150 …+150 | -0.6 ... +0.6 |
| 0…25 | 0 ... 0.1 |
| 0…50 | 0 ... 0.2 |
| 0 …100 | 0 ... 0.4 |
| 0 …250 | 0 ... 1 |

### Operating range 2)

| ±2,500 Pa | ±10 inWC |
|---|---|
| -500 …+500 | -2 ...+2 |
| -1,000 …+1,000 | -4 ...+4 |
| 0 …250 | 0 ... 1 |
| 0 …500 | 0 ... 2 |
| 0 …1,000 | 0 ... 4 |
| 0 …1,500 | 0 ... 6 |
| 0 …2,000 | 0 ... 8 |
| 0 …2,500 | 0 ... 10 |

### Operating range 2)

| ±7,000 Pa | ±28 inWC |
|---|---|
| 0 …1,000 | 0 ... 4 |
| 0 …1,500 | 0 ... 6 |
| 0 …2,000 | 0 ... 8 |
| 0 …2,500 | 0 ... 10 |
| 0 …3,000 | 0 ... 12 |
| 0 …4,000 | 0 ... 16 |
| 0 …5,000 | 0 ... 20 |
| 0 …7,000 | 0 ... 28 |

### Pressure type / Measuring element / Digital display

| Pressure type | Differential pressure |
|---|---|
| Unit |  |
| Differential pressure | ■ Pa ■ kPa ■ mbar ■ mmWC ■ inWC |
| Air flow | ■ l/s ■ m 3 /s ■ m 3 /h ■ cfm |
| Air velocity | ■ m/s ■ fpm |
| Air flow measuring range | 0 ...999,999m 3 /h |
| Operating pressure | ■ ±250 ... ±2.500 Pa [±1 ...±10 inWC]: 10 kPa [40 inWC] ■ ±7.000 [±28 inWC]: 100 kPa [400 inWC] |
| Measuring element | Piezo measuring cell |
| Digital display |  |
| Display resolution | 240 x 320 dpi |
| Type of display | 2"TFT colour display |
| Dashboard function | Indication of up to four measured values and two relay states possible; automatic size scaling depending on the number of measured values displayed. Indicated values can be given any alphanumeric designation. |
| Colour configuration | Range of setting possibilities; colours definable via RGB code. |
| Alarm function | Definition of two limit values possible; on reaching these limit values, a colour change can be defined for each (e.g.'Warning' and 'Alarm') |

### Accuracy specifications

| 1 | 2 | 3 | 4 |
|---|---|---|---|
| Accuracy 1) | 0.50%FS 2) |  |  |
| Operating range | ± 250 Pa [ ±1 inWC] | ± 2,500 Pa [ ± 10 inWC] | ± 7,000 Pa [ ± 28 inWC] |
| Temperature range |  |  |  |
| Compensated 3) TC 4) offset (% FS/K) | 0.015% | 0.01% | 0.008% |
| Uncompensated 5) TC 4) offset (% FS/K) | 0.025% | 0.02% | 0.02% |
| Compensated 3) TC 4) span (% FS/K) | 0.02% | 0.02% | 0.01% |
| Uncompensated 5) TC 4) span (% FS/K) | 0.03% | 0.02% | 0.02% |
| Zero point setting | ■ Manually via push button on the PCB ■ 'myWIKA wireless device' app ■ Automatic 6) |  |  |

### NFC specification

| On-site interface | NFC (near field communication) |
|---|---|
| Standard | ISO/IEC 15693 |
| Modulation | 13.56 MHz |

### Modbus ® communication

| Protocol | Modbus ® via serial interface |
|---|---|
| Transfer mode | RTU |
| Interface | RS-485 |
| Max. voltage | ■ ± 10V without terminating resistor ■ ± 6V with terminating resistor |

### LoRaWAN ® specification

| LoRaWAN ® specification | LoRa ® 868 MHz EU |
|---|---|
| Version | 1.0.3 |
| Frequency range | 863 ... 870 MHz |
| Transmission power | 12 dBm |
| Range 1) | ≤ 10 km [≤ 6.21 miles] |
| Max. output power | 14 dBm |

| Description | Region |
|---|---|
| EU declaration of conformity | European Union |
| EMCdirective |  |
| RED - Radio Equipment Directive |  |
| RoHS directive |  |
| WEEE directive |  |

### Certificates

| Certificates | ■ Without ■ Measurement report per EN 837 ■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material proof, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. material proof for wetted metal parts, indication accuracy, calibration certificate) |
|---|---|

| Model | Description | Order number |
|---|---|---|
|  | Measuring hoses |  |
|  | PVC hose, inner diameter 4 mm[0.16 in], roll at 25 m[82.02 ft] | 40217841 |
|  | PVC hose, inner diameter 6 mm[0.24 in], roll at 25 m[82.02 ft] | 40217850 |
|  | Silicone hose, inner diameter 4 mm[0.16 in], roll at 25 m[82.02 ft] | 40217906 |
|  | Silicone hose, inner diameter 6 mm[0.24 in], roll at 25 m[82.02 ft] | 40217914 |
|  | Duct connector for measuring hoses Ø4…6mm[0.16 …0.24 in] | 40217507 |
|  | Multiple sealing inserts (for M20 cable gland) |  |
|  | Sealing insert with 2 bores at Ø4mm[0.16 in];PU 10 x | 40444284 |
|  | Sealing insert with 2 bores at Ø6mm[0.24 in];PU 10 x | 40444285 |
|  | Sealing insert with 4 bores at Ø5mm[0.20 in];PU 10 x | 40444286 |
|  | Sealing plug for sealing insert with 4 bores, each with Ø5mm[0.20 in]; PU 50 x | 40454873 |
| - | LoRaWAN ® gateway, preconfigured for WIKA network server Gateway for indoor use Gateway for outdoor use | On request |

## מסמכים

- [ds_pe8806_en_co_a4c590](https://avigan.com.ua/wika/docs/wika/ds_pe8806_en_co.pdf) — PDF, 644 KB, en

## תצורה

למוצר יש מגדיר תצורה אינטראקטיבי בעמוד המוצר.

```
A2G-520- -FZZ-ZZZZZ-ZZZZ
```