Endress+Hauser RMS621 - Special Flow Meters

Commissioning RMS621
36 Endress+Hauser
Special flow meters
Function (menu item) Parameter setting Description
Special flow meters Differential pressure 1, 2,
3
Mean flow
Configuration of individual or several differential pressure
transmitters (DPT).
!
Note!
Only use if your DP transmitter outputs a pressure-scaled
signal (mbar, inH
2
0 etc.)
Identifier Name of the flow transmitter (max. 12 characters).
Meas. point Select
DPT
Splitting Range
Select whether one DP transmitter or several DPTs are used for
extending the measuring range (Splitting Range).
(See Section 11.2.1 for details of the 'Splitting Range')
Differential pressure transmitter
Flow type Pitot
Orifice corner tap
Orifice D2
Orifice flange tap
ISA 1932 nozzle
Long rad. nozzle
Venturi nozzle
Venturi tube (cast)
Venturi tube (mach.)
Venturi tube (steel)
V-cone
Type of differential pressure transmitter
The data in brackets refer to the type of Venturi tube.
Medium Water
Steam
Select the medium for which the flow should be measured.
Signal Select
4-20 mA
0-20 mA
PFM
Pulse
Default
See Setup ’Flow inputs’
Terminals None
A-10; A-110; B-112;
B-113; C-112; C-113; D-
112; D-113
See Setup ’Flow inputs’
Curve Linear
Sqr. root
Curve of the DP transmitter used.
!
Note!
Please observe information in Section 11.2.1!
Time base .../s; .../min; .../h; .../d See Setup ’Flow inputs’
Unit l/...; hl/...; dm
3
/...; m
3
/
...; bbl/...; gal/...; igal/...;
ft
3
/...; acf/...
See Setup ’Flow inputs’
!
Note!
Only visible if the "Random" system unit has been selected.
kg, t, lb, ton (US) Can only be selected for flow transmitter/mass
gal/bbl 31.5 (US), 42.0 (US), 55.0
(US), 36.0 (Imp), 42.0
(Imp), User def.
31.0
See Setup ’Flow inputs’
Format 9; 9.9; 9.99; 9.999 See Setup ’Flow inputs’
!
Note!
Only visible if the "Random" system unit has been selected.
Rng. units mbar
in/H
2
0
Unit of differential pressure
Range start mbar
in/H
2
0
Start value for the differential pressure with 0 or 4 mA.
Range end mbar
in/H
2
0
End value for the differential pressure with 20 mA.