# مراقب كثافة الغاز الهجين — GDM-100-T

> مع إشارة خرج Modbus ® أو تناظرية 4 ... 20 mA

- رمز الكتالوج: gdm_100_t
- الطراز: GDM-100-T
- الفئة: حلول غاز SF6 › Gas density sensors
- صفحة المنتج: https://avigan.com.ua/wika/ar/products/gdm_100_t
- السعر: عند الطلب
- المورد: AVIGAN (TOV VIKA Prylad)، الشريك الرسمي لشركة WIKA في أوكرانيا

## نظرة عامة

كثافة الغاز هي معلمة تشغيل حاسمة لمحطات الجهد العالي. إذا لم تتوفر كثافة الغاز المطلوبة، فلا يمكن ضمان التشغيل الآمن للمحطة...

## التطبيقات

- Medium and high-voltage equipment
- Gas density monitoring in closed SF 6 gas compartments
- Remote monitoring of the SF 6 condition
- Raising an alarm when defined limit values have been reached

## المزايا

- Ideally suited for smart grid or modernisation projects
- Modbus ® delivers measured values for pressure, temperature and gas density as digital signal
- The 4 ... 20 mA version outputs the absolute pressure at 20 °C [68 °F] or the gas density in g/l as an analogue signal for SF 6 gas
- Compact design with only one process connection
- Suitable for alternative gases

## المواصفات الفنية

| المعيار | القيمة |
|---|---|
| model | GDM-100-T |
| product family | GDM |
| short description | Hybrid gas density monitor with Modbus or analogue 4 ... 20 mA output signal for SF₆ gas and alternative gases, with integrated or attached transmitter. |
| subcategory | Hybrid gas density monitor with integrated/attached transmitter |
| certifications | RoHS; CE; EMC directive EN 61326; EMC |
| ambient temp | -20 … 60 °C |
| ip rating | IP65 |
| weight kg | 1.4 |
| languages in datasheet | en |
| pressure ranges | 1.6 … 16 bar; 0 … 2.4 bar; 0 … 3.7 bar; 0 … 7.5 bar; 0 … 10.1 bar; 0 … 12.9 bar; 0 … 15.7 bar; 0 … 21.3 bar; 0 … 2 bar; 0 … 3 bar; 0 … 6 bar; 0 … 8 bar; 0 … 10 bar; 0 … 12 bar; 0 … 16 bar |
| density referenced to C | 20 |
| accuracy class | ±1 % at 20 °C, ±2.5 % from -20 ... +60 °C |
| process connections | G 1/2 B per EN 837; G 1/2 B |
| wetted parts material | Stainless steel |
| switching contacts | 3 |
| output signal | 4 ... 20 mA; Modbus® RTU; Modbus RTU; 4...20 mA |
| has temperature compensation | true |

## جداول ورقة البيانات

### Selectable versions

| Option 1 | Laminated safety glass |
|---|---|
| Option 2 | Acrylic glass |

### Selectable versions

| Option 1 | 1 magnetic snap-action contact |
|---|---|
| Option 2 | 2 magnetic snap-action contacts |
| Option 3 | 3 magnetic snap-action contacts |

### Selectable versions

| Option 1 | Falling pressure |
|---|---|
| Option 2 | Rising pressure |

### Selectable versions

| Option 1 | Normally closed |
|---|---|
| Option 2 | Normally open |

### Selectable versions

| Option 1 | Galvanically connected |
|---|---|
| Option 2 | Galvanically isolated |

| Compensated pressure in bar abs. at 20 °C [68 °F] (g/l SF₆) | Pressure in bar abs. | Temperature | Output parameters | Output signal |
|---|---|---|---|---|
| 0 …2(12.28) | 0 …2.4 | -40 …+80 °C [-40 ...+176 °F] | ■ Density ■ Pressure at 20 °C [68 °F] ■ Pressure ■ Temperature | Modbus ® RTU |
| 0 …3(18.65) | 0 …3.7 |  |  |  |
| 0 ... 6 (38.87) | 0 ... 7.5 |  |  |  |
| 0 …8(53.4) | 0 …10.1 |  |  |  |
| 0 …10(68.96) | 0 …12.9 |  |  |  |
| 0 …12(85.79) | 0 …15.7 |  |  |  |
| 0 …16(124.64) | 0 …21.3 |  |  |  |

### Accuracy specifications

| 1 | 2 | 3 |
|---|---|---|
| Accuracy 1) |  |  |
| Compensated pressure ranges in bar abs. at 20 °C [68 °F] (g/l SF₆) 0 …2(12.28) 0 ... 6 (38.87) 0 …3(18.65) | For -40 ... -20 °C [-40 ... -4 °F] | ■ ±2 %(standard) ■ ±1.5 %(option) |
| Compensated pressure ranges in bar abs. at 20 °C [68 °F] (g/l SF₆) 0 …8(53.4) 0 …10(68.96) 0 …12(85.79) | For -20 ...+80 °C [-4 ...+176 °F] | ■ ±1.25 %(standard) ■ ±0.75 %(option) |
| 0 …16(124.64) | For -40 ...+80 °C [-40 ...+176 °F] | ■ ±1.25 %(standard) ■ ±0.6 %(option) |
| Pressure accuracy | ■ ±1 %at 20 °C [68 °F] (standard) ■ ±0.2 %at 20 °C [68 °F] (option) |  |
| Temperature accuracy | ±1.5 K |  |
| Reference conditions | Per IEC 61298-1 |  |

| Compensated pressure range in bar abs. at 20 °C [68 °F] (g/l SF₆) | Accuracy 1) | Output parameters | Output signal |
|---|---|---|---|
| 0 …2(12.28) | ■ ±2 %(standard) | Absolute pressure at 20 °C [68 °F] | 4 ...20mA |
| 0 …3(18.65) | ■ ±1.5 %(option) |  |  |
| 0 ... 6 (38.87) |  |  |  |
| 0 …8(53.4) |  |  |  |
| 0 …10(68.96) |  |  |  |
| 0 …12(85.79) |  |  |  |
| 0 …16(124.64) |  |  |  |

| Density range in g/l SF 6 (compensated pressure in bar abs. at 20 °C [68 °F]) | Accuracy 1) | Output parameters | Output signal |
|---|---|---|---|
| 0 …10(1.64) | ■ ±2 %(standard) ■ ±1.5 %(option) | SF₆ gas density in g/l | 4 ...20mA |
| 0 …16(2.59) |  |  |  |
| 0 ... 25 (3.97) |  |  |  |
| 0 …40(6.16) |  |  |  |
| 0 …60(8.87) |  |  |  |
| 0 …80(11.33) |  |  |  |

| Compensated pressure range in bar abs. at 20 °C [68 °F] (g/l SF₆) | Overload safety in bar abs. | Burst pressure in bar abs. |
|---|---|---|
| 0 ... 2 (12.28) | 6.2 | 10 |
| 0 ... 3 (18.65) | 14.5 | 24 |
| 0 ... 6 (38.87) | 14.5 | 24 |
| 0 ... 8 (53.4) | 31 | 52 |
| 0 ... 10 (68.96) | 31 | 52 |
| 0 ... 12 (85.79) | 31 | 52 |
| 0 ... 16 (124.64) | 62 | 103 |

### Case

| Case material | 316L |
|---|---|
| Case options | ■ Cable outlet ■ Metal cable outlet, shield optionally connected (heavy-duty version) |

### Output signal

| Voltage supply | DC10…30V |
|---|---|
| Power consumption |  |
| Model GD-20-A | ≤ 0.75W |
| Model GD-20-D | ≤ 0.45W |
| Maximum permissible load R A (model GD-20-A) | R A ≤ (U B - 9.5 V) / 0.023 A with R A in ohm and U B inV |
| Time response |  |
| Settling time 1) | < 10 ms |
| Switch-on time 2) | ≤ 500 ms |

### Rear cable socket

| 1 | - | - |
|---|---|---|
| 2 | U + | DC 10 ...30V |
| 3 | U - | Mass |
| 4 | A | RS-485 signal |
| 5 | B | RS-485 signal |
| 6 | - | - |

### Rear cable socket

| 1 | U + | DC 10 ...30V |
|---|---|---|
| 2 | - | - |
| 3 | U - | Mass |
| 4 | - | - |
| 5 | - | - |
| 6 | - | - |

### Operating conditions

| 1 | 2 |
|---|---|
| Electrical safety |  |
| Model GD-20-D | Reverse polarity voltage U + vs.U - |
| Model GD-20-A | Reverse polarity voltage U + vs.U - |

### EMC tests

| Immunity to EMF | 30 V/m (at 80 MHz to 6 GHz) |
|---|---|
| Immunity against surge voltages (surge) per IEC 61000-4-5 | 1 kV, non-symmetrical, cables to ground, RS485A to RS485B, U + vs.U - |
| ESD per IEC 61000-4-2 | 8 kV contact discharge, 15 kV indirect discharge, 8 kV indirect discharge |
| Immunity against conducted HF signals in accordance with IEC 61000-4-6 | 10V at 150 kHz to 80 MHz |
| Immunity against fast transients (burst) per IEC 61000-4-4 | 4 kV |

| Logo | Description | Country |
|---|---|---|
|  | EU declaration of conformity | European Union |

| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|
| Designation | Case ingress protection | Temperature range in | °C Shield provided customer | Shield connected on the instrument | Assignment |  |
|  |  |  |  | side | U + | U - |
| Cable outlet 2 m, plastic | IP67 | -40 ...+80 °C [-40 ...+176 °F] | Yes | - | Brown | Blue |
| Cable outlet 5 m, plastic |  |  | Yes | - |  |  |
| Cable outlet 10 m, plastic |  |  | Yes | - |  |  |
| Cable outlet 2 m, SS |  |  | Yes | - |  |  |
| Cable outlet 5 m, SS |  |  | Yes | - |  |  |
| Cable outlet 10 m, SS |  |  | Yes | - |  |  |
| Cable outlet 2 m, shield connected, SS |  |  | Yes | Yes |  |  |
| Cable outlet 5 m, shield connected, SS |  |  | Yes | Yes |  |  |
| Cable outlet 10 m, shield connected, SS |  |  | Yes | Yes |  |  |

| Model | Description | Order number |
|---|---|---|
| Modbus ® start-up kit | ■ Power supply unit for sensor ■ Connection cable ■ Interface converter (RS-485 to USB) ■ USB cable type A to type B ■ Modbus ® tool software on USB stick | 14075896 |
| WIKAsoft-GD for configuration and testing of the digital sensor | Free download from: www.wika.com/download | - |
| Optional accessories |  |  |
| Recalibration valve | Model GLTC-CV ■ Enables easy recalibration of the gas density monitor without dismounting ■ Welded permanently to the instrument or available as loose valve for retrofitting | - |
| Connection cable for Switching outputs | ■ Terminal without wiring ■ Connector mounted on the instrument side, cable with loose ends | - |

| Description | Order number |
|---|---|
| Adapter from test connection (M26 x 1.5) to quick coupling | 14146937 |
| Protective cap for test connection (M26 x 1.5) | 14193772 |
| Calibration system for SF₆ gas density measuring instruments, model BCS-10 | SeeWIKA data sheet SP 60.08 |
| Calibration system for SF₆ gas density measuring instruments, model ACS-10 | SeeWIKA data sheet SP 60.15 |

## المستندات

- [ds_sp6079_en_co_e9ccb1](https://avigan.com.ua/wika/docs/wika/ds_sp6079_en_co.pdf) — PDF, 808 KB, en