GESTRA NRR 2-52 Original Installation Instructions

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English

Level Controller NRR 2-52

Level Controller NRR 2-53

Operating & Display Unit URB 50

NRR 2-52

NRR 2-53

URB 50

Original Installation Instructions

819222-03

Default Chapter2
- Table of Contents2
Important Notes5
- Usage for the Intended Purpose5
- Function5
- Safety Note6
Directives and Standards6
- VdtüV Bulletin "Wasserstand 100" (= Water Level 100)6
- LV (Low Voltage) Directive and EMC (Electromagnetic Compatibility)6
- ATEX (Atmosphère Explosible)6
- Ul/Cul (CSA) Approval6
- Note on the Declaration of Conformity / Declaration by the Manufacturer6
Technical Data7
- Nrr 2-52, Nrr 2-537
- Scope of Supply9
In Control Cabinet: Mounting Level Controller10
- Dimensions NRR 2-52, NRR 2-5310
- Key10
- Installation in Control Cabinet10
- Name Plate / Marking11
In Control Cabinet: Installing the Operating & Display Unit12
- Dimensions URB 5012
- Key12
- Installation in Control Cabinet12
- Name Plate / Marking12
In Control Cabinet: Wiring Level Controller13
- Wiring Diagram for Level Controller NRR 2-5213
- Key13
- Wiring Diagram for Level Controller NRR 2-5314
- Key14
In Control Cabinet: Wiring the Operating & Display Unit15
- Back of Equipment, Position of Connector15
- Connection of Supply Voltage15
- Pin Assignment for Data Line NRR 2-52, NRR 2-53 - URB 5015
- Key15
In Control Cabinet: Wiring the Level Controller / the Operating & Display Unit16
- Connection of Supply Voltage16
- Connecting Output Contacts16
- Connecting Level Electrode, Level Transmitter16
- Connection of Data Line for the Level Controller / Operating & Display Unit16
- Connecting the Potentiometer (for Indication of Valve Positions), Connections in ../ out / 4-20 Ma16
In the Plant17
Wiring Level Electrode / Level Transmitter17
- Connecting Level Electrode, Level Transmitter17
Level Controller: Factory Settings17
- Level Controller NRR 2-52, NRR 2-5317
Level Controller: Changing Factory Settings18
- Changing Function and Input for Level Electrode/Transmitter18
- Tools19
Before Putting the Level Control System into Operation20
- Establishing Measuring Range20
Operating & Display Unit URB 5021
- User Interface21
- Key21
- Switch on Supply Voltage21
- Explanation of Icons22
Commissioning Procedure24
- Adjusting the MIN/MAX Switchpoints and Setpoint24
- Numberpad24
- Key24
- Establishing Measuring Range for Level Electrode NRG 225
- Setting the Control Parameters26
- Additional Information on Control Parameter Settings26
- Key26
- Setting the Control Parameters for 3-Element Control (Optional)27
- Key27
Contents - Continued28
- Only NRR 2-52: Calibrating the Potentiometer for Indication of Valve Position28
Operation28
- Manual Actuation of Control Valve28
- Trending29
- Key29
- Testing MIN/MAX Alarm, Entering Date and Time30
- Setting up a Password and Logging in31
- Key31
- Log out33
- Alarm & Malfunction List34
- Key34
Error, Alarm and Warning Messages35
- Indication, Diagnosis and Remedy35
Further Notes36
- Action against High Frequency Interference36
- Decommissioning / Replacing the Level Controller NRR 2-536
- Decommissioning / Replacing the Operating & Display Unit URB 5036
- Disposal36

Other manuals for GESTRA NRR 2-52

Original Installation & Operating Manual68 pages

Installation & Operating Manual68 pages

Questions and Answers:

M
maureenchapmanAug 5, 2025
How to prevent electric shock when working on GESTRA NRR 2-52 Controller electrical systems?
- U
  uburtonAug 5, 2025
  To avoid electric shock when working on GESTRA Controller electrical systems, always switch off the voltage to the equipment before working on the terminal strips (installation, electrical connection, removal). Also, disconnect all poles of the supply cable from the mains and secure it so it cannot be switched back on. Before starting work, verify that the plant is not carrying live voltage.