GESTRA NRG 16-41 Original Installation Instructions

Level electrode

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E N
E n g l i s h
Level Electrode
NRG 16-41
NRG 16-41.1
NRG 17-41
NRG 17-41.1
NRG 19-41
NRG 19-41.1
Original Installation Instructions
810743-04
1

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Summary of Contents for GESTRA NRG 16-41

  • Page 1 Level Electrode NRG 16-41 NRG 16-41.1 NRG 17-41 NRG 17-41.1 NRG 19-41 NRG 19-41.1 Original Installation Instructions 810743-04 E n g l i s h...
  • Page 2: Table Of Contents

    NRG 16-41, -41.1; NRG 17-41, -41.1; NRG 19-41, -41.1 ..............12 Key ...............................13 Installation NRG 16-41, -41.1; NRG 17-41, -41.1; NRG 19-41, -41.1, step 1 ............14 NRG 16-41, -41.1; NRG 17-41, -41.1; NRG 19-41, -41.1, step 2 ............14 Attention ...............................14 Note ..............................
  • Page 3 Contents – continued – Page Electrical Connection Aligning terminal box ..........................17 Note ..............................17 Control cable ............................17 Wiring diagram .............................18 Wiring diagram for the sensor plug-in connections ................19 Key ...............................19 CAN bus wiring diagram ........................20 Attention ...............................20 Note ..............................21 Tools ..............................21 Basic Settings CAN bus ...............................21...
  • Page 4: Important Notes

    Important Notes Usage for the intended purpose Use level electrode type NRG 16-41, NRG 17-41 or NRG 19-41 only in conjunction with control equipment NRS 1-41 or NRS 1-40.1 as high-water level limiter (high-level alarm). Use level electrode type NRG 16-41.1, NRG 17-41.1 or NRG 19-41.1 only in conjunction with control equipment NRS 1-40.1 as high-water level limiter (high-level alarm).
  • Page 5: Explanatory Notes

    The NRG 1...-41 is to be used in conjunction with the switching controller NRS 1-41 or NRS 1-40.2, the NRG 16-41.1 is designed for use with switching controller NRS 1-40.1. The level data are transferred from the electrode NRG 1...-41 and NRG 1...-41.1 to the control equip-...
  • Page 6: Function

    Control terminal and display unit Functions: Parameterization and visual display (LCD) Data exchange: CAN bus to DIN ISO 11898 using CANopen protocol. Design NRG 16-41, NRG 16-41.1, NRG 17-41, NRG 17-41.1, NRG 19-41, NRG 19-41.1: Screwed ¾", EN ISO 228-1. Fig. 2, Fig. 3...
  • Page 7: Technical Data

    Technical Data NRG 16-41, -41.1; NRG 17-41, -41.1; NRG 19-41, 19-41.1 Type Approval TÜV · SWB / SHWS · ..-403 TÜV · SWB / SHWS · ..-413 Service pressure NRG 16-41, NRG 16-41.1 NRG 17-41, NRG 17-41.1 NRG 19-41, NRG 19-41.1 32 bar g at 238 °C...
  • Page 8: Name Plate / Marking

    TÜV. SWB / SHWS . xx - 403 TÜV . SWB/SHWS TÜV . SWB/SHWS STW(STB) . xx - 413 STW(STB) . xx - 413 0525 0525 GESTRA AG GESTRA AG Münchener Str. 77 Münchener Str. 77 D-28215 Bremen D-28215 Bremen Fig. 1...
  • Page 9: Dimensions Nrg 16-41, -41.1; Nrg 17-41, -41.1

    Technical Data – continued – Dimensions NRG 16-41, -41.1; NRG 17-41, -41.1 GESTRA Steam Systems MA X GESTRA NRG 1...-41.1 ¾" EN ISO 228-1 Fig. 2...
  • Page 10: Dimensions Nrg 19-41, -41.1

    Technical Data – continued – Dimensions NRG 19-41, -41.1 GESTRA Steam Systems GESTRA NRG 1...-41.1 ¾" EN ISO 228-1 Fig. 3...
  • Page 11: Design

    Design NRG 16-41, -41.1; NRG 17-41, -41.1; NRG 19-41, 19-41.1 Fig. 5 Fig. 4 ∅ 33 ¾" EN ISO 228-1 Fig. 6 Fig. 7...
  • Page 12: Functional Elements

    Functional Elements NRG 16-41, -41.1; NRG 17-41, -41.1; NRG 19-41, 19-41.1 P R O D U C T D E S I G N A W A R D Fig. 8 1 2 3 5 6 7 8 910 LW HW...
  • Page 13: Key

    Design / Functional Elements – continued – Electrode rod Bore Spring Electrode tip S. S. joint ring D 27 x 32 mm to DIN 7603 (made of 1.4301), bright annealed Seating surface Electrode thread Screws M 4 M 12 sensor plug, 5 poles, A-coded, M 12 sensor socket, 5 poles, A-coded Cover LED green “Program running”, LED red “CAN bus communication”...
  • Page 14: Installation

    Installation NRG 16-41, -41.1; NRG 17-41, -41.1; NRG 19-41, 19-41.1, step 1 , Fig. 4. 1. Screw electrode tip into measuring electrode 2. Carefully determine required measuring length of electrode. Observe min. length, Fig. 2, Fig. 3. 3. Mark length of electrode tip 4.
  • Page 15: Examples Of Installation Nrg 16-41.1, Nrg 17-41.1, Nrg 19-41.1

    Installation – continued – Examples of installation NRG 16-41.1, NRG 17-41.1, NRG 19-41.1 ¾" DN 50 ≤ 90° Fig. 10 ∅ 20 ¾" 1" ¾" DN 20 DN 100 24.5 24.5 ≤ 90° DN 20 ∅ 20 Fig. 11 Fig. 12...
  • Page 16: Key

    Installation – continued – Flange PN 40, DN 50, DIN 2527 Flange PN 40, DN 100, DIN 2527 For the approval of the boiler standpipe with connecting flange the relevant regulations must be considered. Vent hole (Provide vent hole as close to the boiler wall as possible) High water level (HW) Electrode rod d = 8 mm Protection tube DN 80...
  • Page 17: Electrical Connection

    Electrical Connection Aligning terminal box . Fig. 13 1. Unscrew screws and remove cover 2. Loosen nut with 19 mm spanner. Do not remove it! Fig. 14 The electrode terminal box can now be turned through +/– 180°. 3. Turn electrode terminal box into desired position (+/– 180°). 4.
  • Page 18: Wiring Diagram

    Electrical Connection – continued – Wiring diagram NRG 1...-41.1 2 3 4 5 6 7 8 9 0 18V-36V DC 120 Ω CAN-Bus Fig. 13...
  • Page 19: Wiring Diagram For The Sensor Plug-In Connections

    Electrical Connection – continued – Wiring diagram for the sensor plug-in connections 120 Ω 120 Ω Fig. 14 Fig. 15 Fig. 16 RES 1 RES 2 Terminating resistor 120 Ω, RES 1 or RES 2 CAN bus line, twisted pair control cable Pin 1: Screen Pin 2: Power supply 24 V DC+ (red) Pin 3: Power supply 24 V DC–...
  • Page 20: Can Bus Wiring Diagram

    Electrical Connection – continued – CAN bus wiring diagram URB 2 NRS, NRR, LRR, NRG, LRG, TRS, URB 1 EF, URZ RES 1 RES 2 Fig. 17 Attention Wire equipment in series. Star-type wiring is not permitted! The Bus line must run separately from signal and mains lines. Link screens of control cables such that electrical continuity is ensured and connect them once to the central earthing point (CEP).
  • Page 21: Note

    The four-core bus cable serves as power supply and data highway for high-speed data exchange. The CAN address (Node ID) can be set between 1 and 123. The equipment is configured at our works and ready for service with other GESTRA system components without having to set the node ID.
  • Page 22: Node Id

    Factory setting TRS 5-40 (1) TRS 5-40 (2) X + 1 + 90 X + 2 + 90 High level alarm NRS 1-41 NRG 16-41 Reserved Reserved Reserved X + 1 X + 2 X + 3 X + 4...
  • Page 23: Factory Set Default Values

    Basic Settings – continued – Factory set default values The level electrode features the following factory set default values: Baud rate: 250 kB/s Node ID: NRG 1...-41: 007, NRG 1...-41.1: 004 Assigning / changing node ID If several systems of the same kind are to communicate in one CAN bus network, be sure to assign one node ID for each individual system component (e.
  • Page 24: Code Switch Settings

    Basic Settings – continued – Code switch settings 2 3 4 5 6 7 8 9 0 Node ID Node ID Fig. 18 (Factory setting Fig. 19 (Factory setting NRG 1...-41) NRG 1...-41.1) Length of cable Baud rate 250 kBit/s 125 m 125 kBit/s 250 m...
  • Page 25: Commissioning Procedure

    Commissioning Procedure Check wiring Make sure that the level electrode NRG 1...-41, NRG 1...-41.1 is properly connected to the switching controller NRS 1-41, NRS 1-40.1, NRS 1-40.2 according to the wiring diagram. Fig. 13, 14 Apply mains voltage Apply power to switching controller NRS 1-41, NRS 1-40.1, NRS 1-40.2. Operation High-water level limiter (Max alarm) Used in combination with switching controller NRS 1-41, NRS 1-40.1, NRS 1-40.2 in (pressurized)
  • Page 26: Malfunctions

    Malfunctions Fault finding list for troubleshooting Equipment fails to work – Indication of a malfunction Fault: In spite of correct wiring and commissioning of the equipment an interference signal is indicated. Remedy: The interference signal is caused by H. F. interferences coming from the installati- on.
  • Page 27 For your Notes...
  • Page 28 Agencies all over the world: www.gestra.de GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon +49 421 3503-0 Telefax +49 421 3503-393 E-mail info@de.gestra.com www.gestra.de 810743-04/04-2017cm (808720-03) · GESTRA AG · Bremen · Printed in Germany...

This manual is also suitable for:

Nrg 16-41.1Nrg 17-41Nrg 17-41.1Nrg 19-41Nrg 19-41.1

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