Trafag
Trafag 8774 Gas Density Sensor
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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
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