MR MSENSE DGA 9 - Filling Level L2

MSENSE
®
DGA 9 7045899/02 EN – 11.2020 Page 75
6.2.6 Filling level L2
In this process step, the extraction chamber is filled with oil up to filling level L2 and the gaseous air is
forced from the extraction chamber into the measurement cell.
Legend
Condition of components
[1]
Filling level L0 “reached”
[2]
Filling level L1 “reached”
[3]
Filling level L2 “reached”
[4]
Valve V9 “open”
[5]
Flow F1 “present - filling”
[6]
Valve V1 “filling - draining”
[7]
Valve V3/ V7 “closed”
[8]
Compressor K1 "standstill”
[9]
Valve V4/ V8 “closed”
[10]
Valve V2 “open”
[11]
Pump P1 "standstill”
[12]
Valve V5 “open”
Safety functions and fault detection Filling level L2
Monitored components
Detectable errors
Filling sensors zero acknowledgement, low and high
Filling level L0, L1 or L2 reached
Filling sensors zero acknowledgement, low and high
Flow measurement
Time monitoring
• Flow stops
• Drain the flow
• Filling level timeout (prevents the
flooding of the measurement cell)
Measurement cell
Measurement cell offline
Pressure switch
No pressure increase