RMS621 Commissioning
Endress+Hauser 39
Pressure inputs
Function (menu item) Parameter setting Description
Identifier Pressure 1-3 Name of pressure sensor, e.g. ’pressure in’ (max. 12
characters).
Signal Select
4-20 mA
0-20 mA
Default
Selects the signal of the pressure sensor. If ’Default’ is set, the
device works with a fixed default pressure.
Terminals None
A-10; A-110; B-112;
B-113; C-112; C-113; D-
112; D-113
Defines the terminal for connecting the pressure sensor. It is
possible to use a sensor signal for several applications. For this,
in the application in question, select the terminal where the
sensor is located. (multiple selection possible)
Unit bar; kPa; kg/cm
2
; psi; bar
(g); kPa (g); psi (g)
Physical unit of the measured pressure.
• (a) = appears on the display if ’absolute’ was selected as the
type. Refers to the absolute pressure.
• (g) = gauge, appears on the display if ’relative’ was selected
as the type. Refers to the relative pressure.
(a) or (g) appears automatically on the display depending on
the type selected.
!
Note!
Only visible if the "Random" system unit has been selected.
Type Absolute
Relative
Indicates whether the measured pressure is absolute or relative
(gauge) pressure. With relative pressure measurement, the
atmospheric pressure has to be entered afterwards.
Format 9; 9.9; 9.99; 9.999 Number of places after the decimal point
!
Note!
Only visible if the "Random" system unit has been selected.
Start value 0.0000 to 999999 Start value for the pressure with 0 or 4 mA.
!
Note!
This can only be selected for the 0/4 to 20 mA signal.
End value 0.0000 to 999999 End value for the pressure with 20 mA.
!
Note!
This can only be selected for the 0/4 to 20 mA signal.
Signal damp 0 to 99 s Time constant of the first order low pass for the input signal.
This function is used to reduce display fluctuations in the event
of severely fluctuating signals.
!
Note!
This can only be selected for the 0/4 to 20 mA signal.
Offset -9999.99 to 9999.99 Shifts the zero point of the response curve. This function is
used to adjust sensors.
!
Note!
This can only be selected for the 0/4 to 20 mA signal.
Atm. press. 0.0000 to 10000.0
1.013
Configuration of the ambient pressure (in bar) present at the
device installation location.
!
Note!
Item is only active if ’relative’ is selected as the type.
Default -19999 to 19999 Sets the default pressure which is worked with if the sensor
signal fails and the ’Default’ signal is set.
Alarm response See Setup ’Flow inputs’.
Mean value Unused
2 sensors
3 sensors
Mean value computed from several pressure signals
(See Section 11.2.1 for details of the 'Mean value
computation')
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