GESTRA NRGT 26-1S Installation Instructions Manual
  1. Manuals
  2. Brands
  3. GESTRA Manuals
  4. Accessories
  5. NRGT 26-1S
  6. Installation instructions manual

GESTRA NRGT 26-1S Installation Instructions Manual

Steam systems level electrode
Hide thumbs Also See for NRGT 26-1S:
Table of Contents

Advertisement

Quick Links

GESTRA Steam Systems
NRGT 261
NRGT 261S
Installation Instructions 81021304
Level electrode
NRGT 26-, NRGT 26- S
GESTRA

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the NRGT 26-1S and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for GESTRA NRGT 26-1S

Summary of Contents for GESTRA NRGT 26-1S

  • Page 1 GESTRA GESTRA Steam Systems NRGT 261  NRGT 261S Installation Instructions 81021304 Level electrode NRGT 26-, NRGT 26- S...

  • Page 2: Table Of Contents

    Contents Page Important Notes Usage for the intended purpose ......................4 Safety note .............................4 Danger ..............................4 Attention ..............................4 ATEX (Atmosphère Explosible) .........................4 Explanatory Notes Scope of supply ............................5 System description ..........................5 Function ..............................5 Designs ..............................5 Technical Data NRGT 26-, NRGT 26-S ........................6, 7 Corrosion resistance ..........................7 Sizing ..............................7 Name plate / marking ..........................8...
  • Page 3 Contents – continued – Page Wiring NRGT 26-, NRGT 26-S ........................6 Wiring diagram .............................6 Attention ...............................6 Tools ..............................6 Basic Setting Factory setting NRGT 26- ........................7 Factory setting NRGT 26-S ........................7 Establish active measuring range (control range) ..................7 Attention ...............................7 Commissioning Danger ..............................8 Check wiring ............................8 Apply mains voltage..........................8...

  • Page 4: Important Notes

    Important Notes Usage for the intended purpose Use level electrodes NRGT 26- and NRGT 26-S only for indicating liquid levels. Safety note The equipment must only be installed and commissioned by qualified and competent staff. Retrofitting and maintenance work must only be performed by qualified staff who – through adequate training –...

  • Page 5: Explanatory Notes

    Explanatory Notes Scope of supply NRGT 26 1  Compact system type NRGT 26 - with joint ring (of stainless steel .430) D 27 x 32 to DIN 7603, bright annealed  Installation manual NRGT 26 1S (for marine applications)  Compact system type NRGT 26 -S with flange DN 50 (2"), PN 40 to DIN 2635  Installation manual System description...

  • Page 6: Technical Data

    Technical Data NRGT 261, NRGT 261S Type Approval N ° NRGT 26-: TÜV · WRS · 02-39 NRGT 26- S: LR 98/20075 RINA ELE/30298/2 GL 99249-96HH BV 067/AO BV NKK A-556 DNV A-8394 KR HMB 0690-MS002 Max. service pressure 32 bar g at 238 °C Connections NRGT 26-: Screwed ¾"...

  • Page 7: Corrosion Resistance

    Technical Data – continued – NRGT 261, NRGT 261S – continued – Power consumption 5 VA, 3 VA at 24 V DC Fuse Thermal fuse T = 02 °C Sensitivity Water ≥ 0,5 µ S/cm Range : Water ≥ 20 µ S/cm Range 2: Fuel oil EL ε...

  • Page 8: Name Plate / Marking

    Voir instructions de Voir instructions de Voir instructions de montage montage montage NRGT 26-1 NRGT 26-1 PN 40 PN 40 NRGT 26-1S PN 40 G ¾ 1.4571 PN 40 PN 40 G ¾ 1.4571 Pmax Pmax 32 bar (464psi)

  • Page 9: Dimensions

    Technical Data – continued – Dimensions GESTRA Steam Systems GESTRA Steam Systems GESTRA GESTRA NRGT 26-1S NRGT 26-1 b = 70 b = 70 Tiefe: 70 mm ∅ 42 ∅ 42 Flange DN 50, PN 40 Flansch PN 40, DN 50 G 3/4 ¾"...

  • Page 10: Design

    Design NRGT 26 1, NRGT 261S GESTRA Steam Systems GESTRA Steam Systems GESTRA GESTRA NRGT 26-1S NRGT 26-1 Fig. 4 Fig. 5 ∅ 33 ¾" BSP DIN 228 Fig. 6...
  • Page 11 Functional Elements NRGT 26 1, NRGT 261S GESTRA Steam Systems GESTRA NRGT 26-1 Fig. 7 Shown: 24, 5, 230 V AC version 3 4 5 Fig. 8...

  • Page 12: Key

    Design / Functional Elements Thermal insulation provided on site, d = 20 mm (without thermal insulation of steam boiler) Seating surface Joint ring (of stainless steel .430) D 27 x 32 to DIN 7603 Electrode thread ¾" BSP, DIN ISO 228- Flange DN 50 (2"), PN 40 to DIN 2635 Protection tube Spacer disc...

  • Page 13: Installation

    Installation NRGT 26 1 . Check seating surfaces of threads or flange provided on vessel or boiler standpipe. Fig. 6 2. Place joint ring C onto seating surface B of the electrode Fig. 7. Use only joint ring (of stainless steel .430) D 27 x 32 to DIN 7603 supplied with electrode. 3.

  • Page 14: Examples Of Installation

    Installation – continued – Examples of installation ¾" BSP ¾" BSP DN 50 DN 50 ≤ ≤ 90 ° 90° ∅ 20 ∅ 20 Fig. 9 Fig. 10 ¾" BSP ¾" BSP ¾" BSP DN 20 DN 00 24.5 24.5 "...

  • Page 15: Key

    Installation – continued – Flange PN 40, DN 50 (2"), DIN 2527 Flange PN 40, DN 00 (4"), DIN 2527 For the approval of the boiler standpipe with connecting flange the relevant regulations must be considered. Vent hole High water (HW) Electrode rod d = 5 mm Protection tube DN 80 Protection tube DN 00...

  • Page 16: Wiring

    Wiring NRGT 26 1, NRGT 261S Use multi-core flexible control cable with min. conductor size .5 mm for wiring. Undo screws H, remove housing cover J. Fig. 7 2. Unscrew union nuts of cable entry I. The electrode terminal can be turned through +/– 180 °. 3.

  • Page 17: Basic Setting

    Basic Setting Factory setting NRGT 261 The compact system is delivered with the following factory set default values: Switch K position 4, water ≥ 20 µS/cm Measuring range 300 mm: ■ Measuring range 400 mm up to 700 mm: Switch K position 4, water ≥ 20 µS/cm ■...

  • Page 18: Commissioning

    Commissioning Danger The terminal strip and the electronic components of the NRGT 26-/NRGT 26-S are live during operation. This presents the danger of electric shock. Use only completely insulated screwdriver according to VDE 0680 for adjusting the measuring points. Check wiring .

  • Page 19: Operation

    Operation NRGT 261, NRGT 261S Operation in steam and (pressurised) hot water plants in accordance with TRD 40, TRD 602, TRD 604, EN 2952, EN 2953 or other national regulations or according to the guidelines of classification societies. Note Should malfunctions occur during the commissioning procedure refer to chapter ■...

  • Page 20: Operational Malfunctions

    Operational Malfunctions Fault finding list for troubleshooting Equipment fails to work Fault: Mains voltage has not been applied. Remedy: Apply mains voltage. Wire equipment according to the wiring diagram. Fault: The thermal fuse has been activated. Remedy: In case of a defective thermal fuse the mains voltage has not been applied to terminal R. Replace defective thermal fuse (ref.

  • Page 21: Decommissioning

    Decommissioning Danger Risk of severe burns and scalds to the whole body! Before removing the level electrode make sure that the vessel or measuring pot are depressurised (0 bar) and cooled down to room temperature (20 °C). Disposal Remove the level electrode and separate the waste materials in accordance with the material specification.

  • Page 22: Annex

    ■ EMC standard EN 50 08-2, EN 50082-2 This declaration is no longer valid if modifications are made to the equipment without consultation with us. Bremen, 9 March 2004 GESTRA AG Dipl.-Ing. Uwe Bledschun Dipl.-Ing. Lars Bohl Head of the Design Dept. Quality Assurance Representative...
  • Page 23 For your notes...
  • Page 24 P. O. Box 0 54 60, D-28054 Bremen Münchener Str. 77, D-2825 Bremen Telephone +49 (0) 42 35 03 - 0 +49 (0) 42 35 03 - 393 E-Mail gestra.ag@flowserve.com Internet www.gestra.de 8023-04/205cm · © 997 GESTRA AG · Bremen · Printed in Germany...

This manual is also suitable for:

Nrgt 26-1

Table of Contents