SF6 - Gas density monitoring
Maximilian Grudin
Produktområde:
Tryck- och temperaturgivare
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| Produkt | Applikation | Teknik | Mätområde | Utsignal | Temperaturområde | Dokumentation | |
|---|---|---|---|---|---|---|---|
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8774 Gas Density Sensor with analogue and PWM output | High and Medium voltage technology | Oscillating quartz measurement | 0...60 kg SF6 /m3 10 ... 253 Hz | Digital: current pulses Density signal: pulse frequency 10...292 Hz (range 0...60 kg SF6/m3) Analogue: 6.5...20 mA Density signal: current loop 10...275 Hz (range 0...56.1 kg SF6/m3) | Permanent -40... +70°C (max. 200h per year) -55... +70°C |  |
 |
8775 Gas Density Sensor RS485/MODBUS | High and Medium voltage technology | Oscillating quartz measurement | 0...60 kg SF6 /m3 10 ... 253 Hz | RS485/Modbus (RTU) | Permanent -40... +70°C (max. 200h per year) -55... +70°C | |
 |
87x6 Gas Density Monitor | High voltage switchgear | Reference gas measurement | Absolute: 0...1.1 MPa / (0...1100 kPa) | Floating change-over contact | -40°C...80°C | |
 |
87x8 Gas density monitor for arctic temperatures | High voltage switchgear | Referensgas | Absolute: 0...1,1 MPa / (0...1100 kPa) | Floating change-over contact | –60 ... +80°C | |
 |
879x Hybrid Gas Density Monitor RS485/MODBUS | High voltage switchgear | Mechanical monitoring: Principle: Reference gas measurement Electronic monitoring: Principle: Oscillating quartz measurement | Mechanical monitoring, measuring range absolute: 0...1.1 MPa (0...1100 kPa) Electronic monitoring/sensor, measuring range absolute: 0...0.85MPa SF6 @ 20°C 0...56.1 kg SF6 /m3 | RS485 / MODBUS | -40°C...80°C | |
 |
878x Hybrid Gas Density Monitor with analogue output | High voltage switchgear | Mechanical monitoring: Principle: Reference gas measurement Electronic monitoring: Principle: Oscillating quartz measurement | Mechanical monitoring, measuring range absolute: 0...1.1 MPa (0...1100 kPa) Electronic monitoring/sensor, measuring range absolute: 0...0.85MPa SF6 @ 20°C 0...56.1 kg SF6 /m3 | Floating change-over contact | -40°C...80°C | |
