Summary of Contents for Flowserve GESTRA NRG 16-42
- Page 1 GESTRA GESTRA Steam Systems N RG 16-42 Installation Instructions 810295-03 Level electrode NRG 6-42...
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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 Description .............................5 Function ..............................5 System components ..........................5 Design ..............................5 Technical data NRG 6-42 ............................. 6 Corrosion resistance ..........................7 Sizing ..............................7 Name plate / marking ..........................7 Dimensions NRG 6-42 ..........................8... - Page 3 Contents continued Page Wiring NRG 6-42 ............................5 Aligning terminal box ..........................5 Note ..............................5 Wiring diagram .............................6 Attention ...............................7 Tools ..............................7 Basic Settings CAN Bus ...............................8 Node ID ..............................8 Attention ...............................8 Factory setting ............................8 Factory set default node IDs ........................9 Assigning / changing node ID ........................9 Attention ...............................9 Code switch settings for node ID / baud rate ..................20 Commissioning...
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Page 4: Important Notes
Important Notes Usage for the intended purpose Use level electrode NRG 6-42 only in conjunction with level switch NRS -42. Safety note The equipment must only be installed and commissioned by qualified and adequately trained personnel. Maintenance and retrofitting must only by performed by entrusted personnel who – through adequate training –... -
Page 5: Explanatory Notes
Explanatory Notes Scope of supply NRG 16-42 Level electrode type NRG 6-42 Joint ring (of stainless steel .430) D 33 x 39 to DIN 7603, bright annealed Terminating resistor 20 Ω Installation manual Description The level electrode NRG 6-42 works according to the conductivity measurement principle. With the NRG 6-42 a maximum of 4 levels can be signalled in conductive liquids: ■... -
Page 6: Technical Data
Technical data NRG 16-42 Type Approval Nº TÜV · WR · 04-399 Max. service pressure 32 bar g at 238°C Connections Screwed " BSP, DIN ISO 228- Flanged DN 50, PN 40, DIN 2635 Materials Case: Die cast aluminium 3.26 (G AlSi8Cu3) Stem: S. S. .457 (X6CrNiMoTi7-2-2) Measuring electrodes: S. -
Page 7: Corrosion Resistance
(bending and alternating stress). The dimensional allowances for corrosion reflect the latest state of technology. Name plate / marking Betriebsanleitung beachten See installation instructions Voir instructions de montage Designation of NRG 16-42 the equipment PN 40 1.4571 IP 65 32 bar ( 464 psi) Pmax Tmax 238 °C... -
Page 8: Dimensions Nrg 6-42
Technical Data continued Dimensions NRG 16-42 GESTRA Steam Systems GESTRA NRG 16-42 Depth: 70 mm Fig. 2... - Page 9 Design NRG 16-42 GESTRA Steam Systems GESTRA NRG 16-42 ∅ 40 " BSP, ISO 228- Fig. 3 Fig. 4...
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Page 10: Functional Elements
Functional Elements NRG 16-42 MAX 70 °C MAX 70°C GESTRA Steam Systems MAX 95 % MAX 95% GESTRA IP 65 NRG 16-42 F G F Fig. 5 Fig. 6... - Page 11 Design / Functional Elements continued Thermal insulation, provided on site, d = 20 mm (outside of thermal insulation of the steam boiler) Seating surface Joint ring (of stainless steel .430) D 33 x 39 to DIN 7603, bright annealed Electrode thread " BSP, EN ISO 228- Housing screws M4 M 2 sensor connector, 5 poles, A-coded M 2 sensor jack, 5 poles, A-coded...
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Page 12: Installation
Installation NRG 16-42 . Determine required measuring lengths of electrode rods and enter data in table “Functions”. accordingly, Fig. 3 2. Cut electrode rods 3. Deburr faces of electrode tips. 4. Strip off 50 mm of PTFE insulation from the ends of electrode tips. 5. - Page 13 Installation continued Examples of installation NRG 16-42 " BSP " BSP DN 50 DN 50 ≤90° ≤90° ∅ 20 ∅ 20 Fig. 7 Fig. 8 " BSP " BSP ¾" BSP DN 20 DN 00 24,5 24,5 > 40 DN 20 ≤90° ∅ 20 Fig. 9 DN 20 Fig. 10...
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Page 14: 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 Provide vent hole as close as possible to the boiler wall. High water (HW) Electrode rod d = 5 mm Protection tube DN 80... -
Page 15: Wiring
Wiring NRG 16-42 Note that screened multi-core twisted-pair control cable is required, e. g. UNITRONIC ® BUS CAN 2 x 2 x ... mm or RE-2YCYV-fl 2 x 2 x ... mm Prefabricated control cables (with connector and coupler) of various lengths for connecting the equipment are available as accessories. -
Page 16: Wiring Diagram
Wiring continued Wiring diagram Code switch Electrode rod Electrode rod NRG 16-42 Electrode rod Electrode rod 24V DC e.g. UNITRONIC BUS CAN 2 x 2 x... ® CAN - Bus e.g. UNITRONIC BUS CAN 2 x 2 x... ® Terminating resistor 20 Ω, paired cable. -
Page 17: Attention
Wiring continued Attention Wire equipment in series. Star-type wiring is not permitted! ■ Interlink screens of control cables such that electrical continuity is ensured and ■ connect them once to central earthing point (CEP). In a CAN bus network the first and the last equipment must be provided with a ■... -
Page 18: Basic Settings
Basic Settings CAN bus All level and conductivity controllers and associated electrodes are interconnected by means of a CAN bus adopting the CANopen protocol. Every item of equipment features an electronic address (Node ID). 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. -
Page 19: Factory Set Default Node Ids
NRS 1-41 ID: 006 TRV 5-40 ID: 005 NRS 1-42 ID: 020 NRG 16-41 ID: 007 NRS 2-40 ID: 039 NRG 16-42 ID: 021 NRR 2-40 ID: 040 NRG 26-40 ID: 041 LRR 1-40 ID: 050 LRG 16-40 ID: 051... -
Page 20: Code Switch Settings For Node Id / Baud Rate
Basic Settings continued Code switch settings for node ID / baud rate Node ID Node ID Fig. 13 (Factory setting) Fig. 14 (Example) Length of cable Baud rate 250 kBit/s 25 m 25 kBit/s 250 m 00 kBit/s 335 m 50 kBit/s 500 m 20 kBit/s 000 m 0 kBit/s 000 m Fig. 15 (Factory setting 250 kBit/s) -
Page 21: Commissioning
Commissioning Check wiring Check whether the level electrode NRG 6-42 and the associated level switch NRS -42 have been wired according to the wiring diagram. Fig. 11 Apply mains voltage Turn on the power for level switch NRS -42. Operation Level electrode with CAN bus During operation the level switch detects the level electrode via CAN bus. The communication via CAN bus is faultless –... - Page 22 Malfunctions continued Fault finding list for troubleshooting continued The equipment fails to work – no function Fault: LED “Power” does not light up. Remedy: Apply mains voltage. Wire equipment according to the wiring diagram. Fault: The thermal fuse has been triggered. Remedy: The ambient temperature must not exceed 70°C. The LED I does not light up. No data exchange. Fault: Remedy: Check level switch NRS -42.
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Page 23: Decommissioning
Decommissioning Danger Risk of severe burns and scalds to the whole body! Before removing the level electrode make sure that the vessel and the measuring pot are depressurised (O bar) and cooled down to room temperature (20 °C). Disposal Remove the level electrode and separate the waste materials, using the material specifications as a reference. - Page 24 GESTRA Agencies all over the world: www.gestra.de España Polska GESTRA ESPAÑOLA S.A. GESTRA POLONIA Spolka z.o.o. Luis Cabrera, 86-88 Ul. Schuberta 04 E-28002 Madrid PL - 80-72 Gdansk Tel. 00 34 9 / 5 5 20 32 Tel. 00 48 58 / 3 06 0 -02 od 0 00 34 9 / 4 3 67 47;...