Fill Level Measurement On Open Tanks With Fluids; Fill Level Measurement On The Steam Boiler (Drum Water Level) - ABB 2600T Series Operating Instruction

8.12.4 Fill level measurement on open tanks with fluids

Fig. 23: 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 "+" (H) of the transmitter to the
bottom of the tank.
Leave the low pressure side "–" (L) of the transmitter open to
the atmosphere.
8.12.5 Fill level measurement on the steam boiler (drum
water level)
Fig. 24: Level measurement on the steam boiler
Mount the transmitter at the same height or below the lowest
level to be measured.
Connect the high pressure side "+" (H) of the transmitter to the
bottom of the tank.
The low pressure side "–" (L) of the transmitter up at the tank.
Above the maximum level, connect using a condensate vessel.
Use the condensate tank to ensure that the impulse line of the
low pressure side is always filled with liquid (condensate) at a
constant height.
266CRx, 266JRx, 266CSx, 266JSx | OI/266CXX/266JXX/HART-EN Rev. B 29