6 Commissioning
RMS 621
34
Hauser
!
Note!
Dependent on the version 4 to 10 current, PFM, pulse and RTD inputs are available on the energy
manager. These can be used for measuring flow, temperature, and pressure signals.
Setup
→
Flow
Up to three flowmeters for measuring flow can be connected to the unit. The
signals from these flowmeters are simultaneously recorded and analysed. It is possible to use just
one flowmeter for different applications (see menu address Terminals).
Function (Menu
address)
Parameter set-up
Description
Flow inputs
Flow 1, 2, 3
Splitting range 1, 2, 3
Average flow
Set up of individual flow meters or a flow meter with expanded
measurement range or automatic measurement range change
over (split) by using multiple flow meters
Identifier
Flow 1-3
Identifies the flowmeter
Flow measurement device
Operational volume
Mass
Differential pressure
Set up of the flow principle being used e.g. if the flow signal is
volume proportional, mass or differential pressure. Examples
for flow devices operational volume (e.g. Vortex, mag.,
turbine), mass (e.g. Coriolis) and differential pressure (orifice
plate, nozzle, etc.)
!
Note!
When using differential pressure devices please take note of
the hints in the appendix "Flow measurement set-up".
Differential pressure device
Pitot
Orifice corner tap
Orifice D tap
Orifice end tap.
ISA 1932 nozzle
Long radius nozzle
Venturi tube
Venturi pipe (cast iron)
Venturi pipe (machined)
Venturi pipe (sheet metal)
Construction of the differential pressure sensor
!
Note!
Wehen using Pitot tubes a correction factor must be entered
(see appendix 11.2.1)
The values in brackets identify the type of venturi pipe.
!
Note!
Only active on flow meter/differential pressure.
Medium
Water
Steam
Selection of medium to be measured.
!
Note!
Only active on differential pressure devices.
Signal type
Please select
4-20 mA
0-20 mA
PFM
Pulse
Select the flowmeter signal mode.
Terminals
Not used
A-10; A-110; B-112;
B-113; C-112; C-113; D-
112; D-113
Allocates the terminal to which the flowmeter is connected. It
is possible to use one sensor (flow signal) for more than one
application. Select the respective terminal to which the signal
required is connected in the application. (Multi calculations
possible)
Curve
Linear
Squared
Selection of the output curve used by the flow meter.
Time base
.../s; .../min;
.../h
; .../d
Time base for the flow signal engineering units in format:
X per
selected time base.
Engineering Units
l/...; hl/...; dm
3
/...;
m
3
/...
; bbl/...; gal/...;
igal/...; ft
3
/...; acf/...
kg, t, lb, ton (US)
Volume unit for the flow signal in format:
selected units times
X
Selectable only on flow device/mass
Содержание RMS621
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