Flowserve NRGS 16-4 Bedienungsanleitung Seite 1

GESTRA Steam SystemsNRG 16-4Installation Instructions 818596-00Level Electrode NRG 16-4

10InstallationCutting electrode tip to length1. Carefully determine the required length of the electrode tip in accordance with the level-dependent sw

11Installation– continued –Mounting electrode– continued –Observe TÜV (German Technical Supervisory Association) regulations when using the level elec

12Examples of Installation43/8"BSP3/8"BSP12357811DN50123Ø20204569<90°Ø20>1083/8"BSPDN50123Ø2020569<90°Ø20>10<1500Fig.4Fi

13KeyFlange PN 40, DN 50 to DIN 2501-1 Flange PN 40, DN 100 to DIN 2501-1For the approval of the boiler standpipe with connecting flange the relevant

14WiringTerminal boxUse screened cable type I–Y(St) Y2x 2x0.8mm² or LIYCY 4x0.5mm² for wiring.1. Unscrew screw . Fig.32. Remove terminal box from leve

15Wiring– continued –Wiring diagramKeyLevel switch NRS...For wiring of level switch see installation instructions NRS ...Electrode tipTools Screwdriv

16MalfunctionsFault finding list for troubleshootingLevel electrode immersed - no functionFault: Mains voltage is not applied to the level switch.Reme

17DecommissioningDanger noteRisk of severe burns and scalds to the whole body! Before installing the level electrode make sure that the vessel or the

818596-00/905agt ©2005 GESTRA AG Bremen Printed in Germanywww.gestra.deGESTRA AGPostfach 10 54 60, D-28054 Bremen Münchener Str. 77, D-28215 Bremen T

Page2ContentsImportant NotesUsage for the intended purpose...

Page3ContentsMalfunctionsFault finding list for troubleshooting ...

4Important NotesUsage for the intended purposeThe level electrode NRG 16-4 is exclusively designed for detecting and signalling levels in liquids with

5Explanatory NotesScope of supply 1 Level electrode type NRG 16-4 1 Joint ring 17x21 form D to DIN 7603, made from 1.4301, bright annealed 1 Instal

6Technical DataNRG 16-4Type approval no. TÜV. WR/WB. 03-302Service pressure 32 barg at 238°CConnection Screwed 3/8" BSP, ISO 228-1Materials Screw

7Technical Data– continued –Corrosion resistanceIf the level electrode NRG 16-4 is used for its intended purpose, its safety is not impaired by corros

8Technical Data– continued –Dimensions70190Length supplied50A. F. 22ABC0.5Screwed 3/8" BSP, Ø 23Fig.1 Fig.2D30Ra12.5Ra 3.2

9Functional ElementsNRG 16-4KeyThermal insulationSeating surfaceJoint ring 17x21 form D to DIN 7603 , made from 1.4301, bright annealedElectrode screw