# مفتاح كثافة الغاز — GDS-RC-HV

> مفتاح لكثافة الغاز مع حجرة مرجعية لمراقبة كثافة غاز SF6 في المعدات عالية الجهد، مع تعويض درجة الحرارة والتشخيص الذاتي.

- رمز الكتالوج: gds_rc_hv
- الطراز: GDS-RC-HV
- الفئة: حلول غاز SF6 › Gas density switches
- صفحة المنتج: https://avigan.com.ua/wika/ar/products/gds_rc_hv
- السعر: عند الطلب
- المورد: AVIGAN (TOV VIKA Prylad)، الشريك الرسمي لشركة WIKA في أوكرانيا

## نظرة عامة

مراقبة كثافة الغاز للمعدات الكهربائية. تُعد كثافة الغاز معلمة تشغيلية حاسمة لمحطات الجهد العالي.

## التطبيقات

- High-voltage equipment
- Monitoring of SF 6 gas density of closed gas tanks
- Raising an alarm when defined limit values have been reached

## المزايا

- Accurate isochore, temperature-compensated switching over the entire temperature range
- Increased plant safety through self-diagnostics
- Prepared for any alternative gases
- Very high long-term stability through welded reference gas volume

## المواصفات الفنية

| المعيار | القيمة |
|---|---|
| model | GDS-RC-HV |
| product family | GDS |
| short description | Gas density switch with reference chamber for monitoring SF6 gas density in high-voltage equipment, featuring temperature compensation and self-diagnostics. |
| subcategory | Gas density switch with reference chamber |
| certifications | CE; RoHS |
| ambient temp | -40 … 80 °C |
| ip rating | IP65/IP67 |
| weight kg | 1.25 |
| languages in datasheet | en |
| pressure ranges | 0 … 10 bar; 0 … 12.5 bar |
| density referenced to C | 20 |
| process connections | G 1/2 B per EN 837, axial or radial |
| wetted parts material | Stainless steel |
| switching contacts | 4 |
| has temperature compensation | true |

## جداول ورقة البيانات

### General

| Measurement principle | Reference gas measurement |
|---|---|
| Measuring range | ■ 0 ... 10 bar abs. at 20 °C [68 °F] SF₆ gas ■ 0 ... 12.5 bar abs. at 20 °C [68 °F] SF₆ gas |
| Self-indication in case of malfunc- tion | Integrated into the instrument, the switch contact is actuated in case of leakage in the reference chamber |
| Product label | Lasered onto the reference chamber, maximum weather resistance |

### Accuracy

| 1 | 2 |
|---|---|
| Switching accuracy |  |
| -1 ...+5 bar at 20 °C [68 °F] | ■ ±70 mbar at calibration pressure at 20 °C [68 °F], gaseous phase ■ ±100 mbar at calibration pressure at -30 …+50 °C [-22 ...+122 °F], gaseous phase |
| -1 ...+9 bar at 20 °C [68 °F] | ■ ±100 mbar at calibration pressure at 20 °C [68 °F], gaseous phase ■ ±150 mbar at calibration pressure at -30 …+50 °C [-22 ...+122 °F], gaseous phase |
| -1 ... +11.5 bar at 20 °C [68 °F] | ■ ±150 mbar at calibration pressure at 20 °C [68 °F], gaseous phase ■ ±200 mbar at calibration pressure at -30 …+50 °C [-22 ...+122 °F], gaseous phase |

### Switch contacts

| 1 | 2 | 3 | 4 |
|---|---|---|---|
| Switch model | Potential-free change-over contacts |  |  |
| Electrical connection |  |  |  |
| Electrical connection | 12-pin TTI plug-in terminal |  |  |
| Wire cross-section | ■ Min. 0.5 mm² ■ Max.2.5mm 2 |  |  |
| Grounding | Grounding in cable socket available |  |  |
| Quantity | ■ 1 micro switch ■ 2 micro switches ■ 3 micro switches ■ 4 micro switches Up to 4 micro switches possible as change-over contact |  |  |
| Switching directions | ■ Falling density ■ Rising density |  |  |
| Switch points | To customer specification, maximum difference of lowest to highest contact: 4 bar |  |  |
| Electrical characteristics | Switching voltage | Resistive load A | Inductive load A |
| ≤ DC 30V | 5 1) | 3 1) |  |
| ≤ DC 50V | 1 | 1 |  |
| ≤ DC 75V | 0,75 | 0.75 |  |
| ≤ DC 125V | 0,5 | 0.03 |  |
| ≤ DC 250V | 0,25 | 0.03 |  |
| ≤ AC 125V | 5 1) | 2 1) |  |
| ≤ AC 250V | 5 1) | 2 1) |  |
| Minimum switching voltage and current | 12 V, 10mA |  |  |
| Calibration pressure | First switch point below filling pressure |  |  |
| Switching function | Change-over contact |  |  |
| Circuits | Galvanically isolated |  |  |
| Maximum number of cycles | 10,000 mechanical and electrical |  |  |
| Insulation resistance contact | > 100MOhm |  |  |

### Switch contacts

| Switch hysteresis | Measuring range | Hysteresis level |
|---|---|---|
|  | -1 ...+5 bar at 20 °C [68 °F] | Typical < 90 mbar 2) |
|  | -1 ... +7.5 bar at 20 °C [68 °F] | Typical < 150 mbar 2) |
|  | -1 ... +11.5 bar at 20 °C [68 °F] | Typical < 220 mbar 2) |
|  | Lower switch hysteresis on request |  |

### Permissible ambient conditions

| 1 | 2 |
|---|---|
| Permissible ambient temperature |  |
| Operating temperature | -40 ...+80 °C [-40 ...+176 °F], gaseous phase |
| Storage temperature | -50 ...+80 °C [-58 ... 176 °F] |
| Maximum load |  |
| Minimum bursting strength | > 36 bar |
| Maximum overpressure | 1.43 times the measuring range |
| Ingress protection | IP65, IP67 |
| Permissible air humidity | ≤ 95 %r.h. (non-condensing) Compensating diaphragm against condensation |
| Shock resistance | ■ 50 g/11 ms: no contact bouncing at a distance of 200 mbar from the switch point ■ 150 g: no damage in all axes and directions |
| Vibration resistance | 4 g at a distance of 50 mbar from the switch point, no contact bouncing (20 ...80 Hz) |

### EMC tests

| Dielectric strength | ■ 2 kV pin on grounding (case) ■ 2 kV pin on pin (micro switch on micro switch) ■ 1 kV pin on pin within micro switches - 1 minute |
|---|---|
| Lightning | 7 kV x 1.2/50 μs |

### Leak tightness

| Process connection | ≤ 1 x 10 -8 mbar x l/s |
|---|---|
| Bellows sealing | ≤ 1 x 10 -8 mbar x l/s |

### Materials

| 1 | 2 |
|---|---|
| Wetted materials |  |
| Reference chamber (pressure element) | Stainless steel, filling with reference gas |
| Process connection | G½BperEN837, axial or radial, stainless steel, spanner flats22mm |
|  | Other connections and connection locations on request |
| Non-wetted materials |  |
| Case and cover | Aluminium die-casting, powder-coated |
| Cable gland M25 x 1.5 | Plastic, sealing range 5 ... 13 mm;(optional 8 ... 17 mm) Tightening torque:8Nm |

| Logo | Description | Country |
|---|---|---|
|  | EU declaration of conformity ■ Low voltage directive ■ RoHS directive | European Union |

| Logo | Description |
|---|---|
| - | China RoHS directive |

## المستندات

- [ds_sp6028_en_co_ed6839](https://avigan.com.ua/wika/docs/wika/ds_sp6028_en_co.pdf) — PDF, 341 KB, en