Trafag 8774 Gas Density Sensor

Applications

High voltage switchgear, Medium voltage switchgear

Category

Gas density monitoring

Dielectric strength

250 VAC, 50 Hz

Measuring principle

Oscillating quartz measurement

Vibration

15 g (max. 6 mm), (5...2000 Hz)

Media temperature

-40°C ... 70°C

Shock

100g/ 6 ms

Ambient temperature

Permanent -40... +70°C
(max. 200h per year) -55... +70°C

Protection

IP65

Output signal

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)

Measuring range

0...60 kg SF6 /m3
10 ... 253 Hz