Flowserve URB 2 - Manual (Page 6)

6
Explanatory Notes
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System description
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Level Conductivity Temperature
Actual value bar chart X
Actual value, numerical X X X
MIN limit X X X
MAX limit X X X
Switchpoints X X X
Relay (de)energizing times X X
Actual-value output 4-20 mA X
Measuring range X X
Setpoint X X X
Control parameters X X
Valve position of level control valve X
Unit (μS/cm or ppm) X
Stand-by X
Continuous blowdown valve
Operating position of the valve
X
Purging pulse 24 h X
Intermittent blowdown interval X
Duration of intermittent blowdown X
Manual/Automatic operation X X
Function
The operating & display unit URB 2 evaluates at regular intervals the data telegrams of all sensors,
controllers and actuators in a CAN bus system. The readings, parameters, settings and messages are
indicated in plain text. When used as second water level indicator in boiler plants (TRD 40, EN 2952 /
...53), the level is also indicated in the form of a bar graph.
Several languages can be selected for plain text display.
The password protection prevents unauthorized persons from changing parameters and settings.
If other menu levels are selected via the start window and neither a button nor the navigation wheel
is then actuated, the operating & display unit URB 2 will automatically return to the start window after
5 minutes. The time-out function is not effective during manual operation or in the parameterization
mode.
The help function in the various operating levels offers additional information on how to operate the
equipment.