# مفتاح ضغط تفاضلي — PS-DW03UN

> مفتاح ضغط تفاضلي لنطاقات ضبط منخفضة جدًا، مناسب للتطبيقات الحرجة من ناحية السلامة في أنظمة التدفئة والتهوية وتكييف الهواء وتوليد الطاقة، بما في ذلك محطات الطاقة النووية، للسوائل الغازية والوسائط الجافة.

- رمز الكتالوج: dw03un
- الطراز: PS-DW03UN
- الفئة: قياس الضغط › Pressure switches
- صفحة المنتج: https://avigan.com.ua/wika/ar/products/dw03un
- السعر: عند الطلب
- المورد: AVIGAN (TOV VIKA Prylad)، الشريك الرسمي لشركة WIKA في أوكرانيا

## نظرة عامة

مفتاح ضغط تفاضلي موديل DW03UN ✓لنطاقات ضبط منخفضة جدًا ✓جودة عالية ►إلى المعلومات!

## التطبيقات

- Differential pressure monitoring and control of processes
- Safety-critical applications in general process instrumentation, especially in HVAC and power generation incl. nuclear power plants
- For gaseous and dry media

## المزايا

- No power supply needed for switching of electrical loads
- Robust switch enclosure from stainless steel 316L, IP66, NEMA 4X
- Setting ranges from 0.3 ... 2.5 mbar to 0.7 ... 16 mbar with high working pressure and high static pressure up to 300 mbar
- Intrinsic safety Ex ia available
- 1 set point, SPDT, high switching power up to AC 250 V, 10 A

## المواصفات الفنية

| المعيار | القيمة |
|---|---|
| model | DW03UN |
| product family | DW03 |
| short description | Differential pressure switch for very low setting ranges, suitable for safety-critical applications in HVAC and power generation, including nuclear power plants, for gaseous and dry media. |
| subcategory | Differential pressure switch |
| certifications | RoHS; EAC; Ex-Ukraine; CCC; KOSHA; CE; ATEX; IECEx |
| explosion protection | Ex ia I Ma; Ex ia IIC T6/T4 Ga; Ex ia IIIC T85°C/T135°C Da IP66; Ex ia IIIC T85°C/T135°C Da; Ex ia IIIC T6/T4 Ga |
| safety integrity level | SIL 3-capable |
| ambient temp | -30 … 85 °C |
| ip rating | IP66 |
| weight kg | 2.2 |
| languages in datasheet | en; de |
| pressure ranges | 0.3 … 2.5 mbar; 0.4 … 4 mbar; 0.4 … 6 mbar; 0.4 … 10 mbar; 0.7 … 16 mbar |
| accuracy class | ≤ 1 % of span |
| accuracy standard | IEC 61298-2:2008 |
| process connections | ¼ NPT female; ½ NPT male (via adapter); G ½ A male (via adapter); G ¼ A male (via adapter); ½ NPT female (via adapter); G ¼ female (via adapter); M20 x 1.5 male (via adapter); ½ NPT male; G ½ A male; G ¼ A male; ½ NPT female; G ¼ female; M20 x 1.5 male |
| case material | Stainless steel 316L; Epoxy resin coated |
| wetted parts material | Stainless steel; Glass-fibre reinforced NBR; Epoxy resin coated; Aluminium casting alloy, Anticorodal® UNI 3571; Aluminium casting alloy (Anticorodal® UNI 3571) |
| sealing material | NBR |
| process temp | -30 … 85 °C |
| output signal | SPDT |
| electrical connection | ½ NPT female |
| switching function | SPDT |
| switching contacts | 1 |

## جداول ورقة البيانات

| 1 | 2 | 3 | 4 |
|---|---|---|---|
| Contact version | Electrical rating (resistive load) | Suitable for Ex ia option |  |
|  | AC | DC |  |
| UN 1 x SPDT, silver | 250 V, 10 A | 125 V, 0.1 A | Yes |

### Maximum values

| Voltage U i | DC 30V |
|---|---|
| Current l i | 100mA |
| Power P i | 0.75W |
| Internal capacitance C i | 0 μF |
| Internal inductance L i | 0mH |

| Setting range in mbar | Working range in mbar | One-sided pressure in mbar | Static pressure in mbar | Fixed dead band for contact version UN |
|---|---|---|---|---|
| 0.3 ... 2.5 | 0 ... 2.5 | ≤ 6 | ≤ 300 | ≤ 0.2 |
| 0.4 ... 4 | 0 ... 4 | ≤ 10 |  | ≤ 0.3 |
| 0.4 ... 6 | 0 ... 6 | ≤ 25 |  | ≤ 0.3 |
| 0.4 ... 10 | 0 ... 10 | ≤ 25 |  | ≤ 0.3 |
| 0.7 ... 16 | 0 ... 16 | ≤ 40 |  | ≤ 0.5 |

| Logo | Description | Country |
|---|---|---|
|  | EU declaration of conformity ■ Pressure equipment directive ■ Low voltage directive ■ RoHS directive ■ ATEX directive 1) IM1 II1GD | European Community |
|  | IECEx 1) Ex ia I Ma Ex ia IIC T6/T4 2) Ga Ex ia IIIC T85°C/T135°C 2) Da IP66 | International |
|  | EAC (option) Hazardous areas 1) | Eurasian Economic Community |
|  | Ex-Ukraine (option) Hazardous areas 1) | Ukraine |
|  | CCC (option) Hazardous areas 1) | China |
|  | KOSHA (option) Hazardous areas 1) | South Korea |

## المستندات

- [ds_pv3550_en_co_708bef](https://avigan.com.ua/wika/docs/wika/ds_pv3550_en_co.pdf) — PDF, 435 KB, en

## المُهيِّئ

يتوفر لهذا المنتج مُهيِّئ تفاعلي في صفحة المنتج.

```
DW03UN-M -BAMZZZDAZZZ
```