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266CRH / 266CRT, 266CSH / 266CST MULTIVARIABLE PRESSURE TRANSMITTER | OI/266CXX/MODBUS-EN REV. A
Fill level measurement on closed tanks
Non-condensing measuring medium (dry leg)
H High pressure sid
L Low pressure side
1 Gas
Figure 20: Level measurement on closed tanks (dry leg)
•
Mount the transmitter at the same height or below the
lowest level to be measured.
•
Connect the high pressure side '+' of the transmitter to the
bottom of the tank.
•
Connect the low pressure side ' ' of the transmitter to the
top of the tank, above the maximum level.
2 Liquid
3 Condensate trap
Fill level measurement on open tanks with fluids
H High pressure side
L Low pressure side
Figure 21: Level measurement on open tanks
•
Mount the transmitter at the same height or below the
lowest level to be measured.
•
Connect the high pressure side '+' of the transmitter to the
bottom of the tank.
•
Leave the low pressure side '–' of the transmitter open to the
atmosphere.
1 Liquid
29
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