Trafag 879X Hybrid Gas Density Monitor

High voltage switchgear

Gas density monitoring

Microswitch: 2 kV terminal ground
Output signal sensor: 250V against mass (EN60255-5)

Mechanical monitoring: Principle: Reference gas measurement
Electronic monitoring: Principle: Oscillating quartz measurement

At min. 5 kPa distance from switch point no contact bouncing
under 20...100 Hz: 4 g

-40°C ... 80°C

50g/ 8 ms

-40°C ... 80°C

1.4435, 1.4404, 1.4571 (AISI316L, AISI316)

IP67

RS485 / MODBUS

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