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Event details

Voyage: IN2019_V06       [details]
Subject: Bypass MFC swapped for upstream ssensor
When: 2019-11-15 20:21:27 UTC

- entered into Elog/Everlog as 2019-11-15 20:21:27
Log: in2019_v06_Atmospherics
Equipment: MAAP

Thermo Scientific Model 5012 MultiAngle Atmospheric Photometer [view]
Position: Latitude: -11.2095 Longitude: 133.43867

- entered into Elog as 11 12.57 S, 133 26.32 E
Action: Change
Parameters before change:
- Control:7.33 LPM Vol Flow
Parameters after change:
Comments:

The MFC for the bypass ( 179327) had a sensor downstream of the valve.

Parameters before change:

- Control: 7.33 LPM Vol Flow

- Vol Flow = 7.33 LPM

- Mass FLow = 6.07 SLPM

- pressure = 848mBarA

I have swapped it for one with the sensor upstream ( 179324), making the measured volumetric flow more representative of VSCC flow (measured at same pressure).

Parameters after change:

- Control: 7.33 LPM Vol Flow

- Vol Flow = 7.33 LPM

- Mass FLow = 7.07 SLPM

- Pressure = 987 mBarA

Better for the VSCC

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