GESTRA NRR 2-52, Оригинальная инструкция по установке

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Contents
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In control cabinet: Wiring the level controller / the operating & display unit
Connection of supply voltage .................................................................................................................16
Connecting output contacts ...................................................................................................................16
Connecting level electrode, level transmitter .........................................................................................16
Connection of data line for the level controller / operating & display unit ...............................................16
Connecting the potentiometer (for indication of valve positions), connections IN ../ OUT / 4-20 mA ........16
In the plant:
Wiring level electrode / level transmitter
Connecting level electrode, level transmitter .........................................................................................17
Level controller: Factory settings
Level controller NRR 2-52, NRR 2-53 ....................................................................................................17
Level controller: Changing factory settings
Changing function and input for level electrode/transmitter ...................................................................18
Tools .....................................................................................................................................................19
Before putting the level control system into operation
Establishing measuring range ...............................................................................................................20
Operating & display unit URB 50
User interface .......................................................................................................................................21
Key .......................................................................................................................................................21
Switch on supply voltage .......................................................................................................................21
Explanation of icons ..............................................................................................................................22
Commissioning procedure
Adjusting the MIN/MAX switchpoints and setpoint .................................................................................24
Numberpad ...........................................................................................................................................24
Key .......................................................................................................................................................24
Establishing measuring range for level electrode NRG 2.-.. ....................................................................25
Setting the control parameters ..............................................................................................................26
Additional information on control parameter settings .............................................................................26
Key .......................................................................................................................................................26
Setting the control parameters for 3-element control (optional) .............................................................27
Key .......................................................................................................................................................27
Only NRR 2-52: Calibrating the potentiometer for indication of valve position ........................................28