Emerson Rosemount 2051 Reference Manual page 29

Reference Manual
00809-0100-4107
DP level example
Figure 2-15: Example Tank
A differential transmitter is used in a level application. Once installed on an empty tank
and taps vented, the process variable reading is –209.4 inH
reading is the head pressure created by fill fluid in the capillary. Based on
scaled variable configuration would be as follows:
Table 2-7: Scaled Variable Configuration for Tank Application
Scaled variable units:
Scaled data 13:
Pressure value position 1:
Scaled Variable position 1:
Pressure value position 2:
Scaled Variable position 2:
Linear offset:
DP flow example
A differential pressure transmitter is used in conjunction with an orifice plate in a flow
application where the differential pressure at full scale flow is 125 inH
application, the flow rate at full scale flow is 20,000 gallons of water per hour. It is highly
recommended to use the low flow cutoff function in order to have a stable output and
avoid problems due to process noise at a low flow or no flow condition. A low flow cutoff
value that is practical for the flow element in the application should be entered. In this
Reference Manual
230- i n.
0. 94 sg
200- i n.
H L
12- i n.
inch
linear
0 inH O
2
12-in.
188 inH O
2
212-in.
–209.4 inH O
2
Configuration
September 2020
O. The process variable
2
Table 2-7, the
O. In this particular
2
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