Flowserve NRG 111-11 Manuel d'utilisateur

1NRG 111-11Installation Instructions 810898-01Level ElectrodeNRG 111-11GESTRA Steam SystemsGESTRA

10Functional ElementsFig. 7MAX 70 °CMAX 95 %Fig. 8K L M LPON

11AElectrode rodBBoreCSpringDElectrode tipEDisk (measuring surface extension)FRetaining ringGGrub screwHGasket D 33x 39 DIN 7603-1.4301ISeating surfac

12Attention The seating surfaces of the standpipe or the flange provided on the vessel must beaccurately machined, see fig. 6. Do not bend electrode

13Note For the approval of the boiler standpipe the relevant regulationsmust be considered. Refer to page 14 for four typical installation examples.

14Examples of Installation∅ 2020Fig. 9 Fig. 10Fig. 11 DN 501" BSP1" BSP≥10∅ 20≤ 90°1283590741111 DN 80Centre distance

151Flange PN 320, DN 50, DIN 2505-1Flange PN 250, DN 80, DIN 2505-12For the approval of the boiler standpipe with connecting flange the relevant regul

16Wiring – continued –Wiring DiagramFig. 12Compensation electrodeCompensation electrodeMeasuring electrode

17Apply mains voltage to level switch NRS 1-7.CommissioningMake sure that the electrode NRG 111-11 is connected to the level switch NRS 1-7 according

18Operation MalfunctionsFault finding list for troubleshootingLevel electrode immersed – low level alarmFault: Mains voltage not applied.Remedy: Apply

19Declaration of Conformity AnnexWe hereby declare that the equipment NRG 111-11 conforms to the following European guidelines: LV guideline 73/23/ee

2ContentsUsage for the intended purpose ...

20Great BritainFlowserve Flow Control (UK) Ltd.Burrel Road, Haywards HeathWest Sussex RH 16 1TLTel. 00 44 14 44 / 31 44 00Fax 00 44 14 44 / 31 45 57E-

3Check wiring ...

4Important NotesDangerWhen loosening the electrode steam or hot water might escape. This presents the dangerof severe scalding. It is therefore essent

5Explanatory Notes – continued –DescriptionThe level electrode NRG 111-11 detects the min. liquid level (low level alarm) in a steam boiler. Theopera

6NRG 111-11Type approval no.TÜV· WB · 01-354EG 01 202 931-B-01-0077-01Service pressureNRG 111-11: 183 barg (at 357 °C)Connection1" BSP (to ISO 22

7Corrosion ResistanceIf the unit is used for the intended purpose, its safety is not impaired by corrosion.Technical Data – continued –SizingThe hous

8Technical Data – continued –DimensionsFig. 2b = 704001751401" BSP, ISO 228-1≥ 185500, 1000, 1500,2000, 2500, 300013630

9Fig. 5 Fig. 6N8N100.5Fig. 3 Fig. 4 1" BSP, ISO 228-1∅ 4014Design NRG 111-11ABCDEGFIHJ30∅ 58110