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Summary of Contents for GESTRA LRG 16-9
- Page 1 Conductivity Electrode LRG 16-9 Original Installation Instructions 818867-04 E n g l i s h...
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Page 2: Table Of Contents
UL/cUL (CSA) Approval ..........................6 Note on the Declaration of Conformity / Declaration by the Manufacturer ..........6 Technical data LRG 16-9 ..............................7 Scope of supply ............................7 Name plate / marking ..........................7 Installation Dimensions LRG 16-9 ..........................8 Mounting conductivity electrode ......................9 Key .................................9 Tools ...............................9... - Page 3 LRG 16-9 ..............................11 Key ...............................11 LRG 16-9 ..............................12 Key ...............................12 Electrical connection Connecting the conductivity electrode ....................13 Leitfähigkeitselektrode LRG 16-9, Belegung Stecker - Buchse ..............13 Troubleshooting Indication, diagnosis and remedy ......................14 Maintenance Safety note ............................15 Cleaning measuring electrode .......................15 Removing and disposing of the conductivity electrode...
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Page 4: Usage For The Intended Purpose
The equipment must only be used within the admissible pressure and temperature ratings. Function The conductivity electrode LRG 16-9 is used in combination with the following equipment as conductivity limiter and continuous blowdown controller in steam boilers: Conductivity switch LRS 1-7... -
Page 5: Safety Note
Important notes - continued - Safety note The equipment must only be installed, wired and commissioned by qualified and competent staff. Retrofitting and maintenance work must only be performed by qualified staff who - through adequate training - have achieved a recognised level of competence. Danger When loosening the conductivity electrode steam or hot water might escape! This presents the risk of severe scalding all over the body! -
Page 6: Directives And Standards
The VdTÜV Bulletin "Water Monitoring 100" states the requirements made on water monitoring equipment. Approvals for Marine Applications The conductivity electrode LRG 16-9 in conjunction with conductivity switch LRS 1-7 is approved for feedwater monitoring on seagoing vessels. See data sheet. ATEX (Atmosphère Explosible) The equipment is a simple item of electrical equipment according to DIN EN 50020 section 5.4. -
Page 7: Technical Data
PN 40 G 1/2” 1.4571 IP 65 Mat-Nr: xxxxxx 32 bar 238°C T amb = 70°C TÜV . WÜL . XX-014 / XX-017 / XX-018 Type approval no. GESTRA AG · Münchener Straße 77 · D-28215 Bremen Manufacturer Service pressure & temperature, Fig. 1... -
Page 8: Installation
Installation Dimensions LRG 16-9 Space required for servicing = 50 mm G ½ A, ISO 228 ∅ 27 G ½ A, ISO 228 Ra 3.2 Fig. 3 ∅18 ∅26 Fig. 2 LRG 16-9... -
Page 9: Mounting Conductivity Electrode
Installation - continued - Note The conductivity electrode is designed for installation in pipes. The conductivity electrode is installed in a socket end, a measuring chamber or a mounting flange. When installing the conductivity electrode please consider a min. space of 50 mm ... -
Page 10: Lrg 16-9
R * = 15 mm Fig. 4 Conductivity electrode LRG 16-9 with on-site socket end for installation in pipes. t = 30 Fig. 5 Conductivity electrode LRG 16-9 with measuring chamber for installation in pipes. Flange Thickness diameter of flange Fig. 6 Conductivity electrode LRG 16-9 with mounting flange for sandwiching between flanges. -
Page 11: Dimensions And Examples Of Installation
The conductivity electrode is mounted in a bypass below the main line. This arrange- ment prevents gas bubbles and flash steam from reaching the equipment. Fig. 7 A throttling point, e. g. a non-return valve (GESTRA type RK 86) should be installed in the main line. -
Page 12: Lrg 16-9
This arrangement prevents gas bubbles and flash steam from reaching the equipment. Please see also installation instructions for OR 52-5 / OR 52-6. Fig. 8 A throttling point, e. g. a non-return valve (GESTRA type RK 86) should be installed in the main line. -
Page 13: Electrical Connection
Electrical connection Connecting the conductivity electrode The conductivity electrode LRG 16-9 is equipped with a sensor plug-in connection type M 12, with 5 poles, A-coded, pin assignment see Fig. 9. For connecting the electrode preconfigured control cable assemblies (with male and female connectors) of various lengths are available as add-on equipment. -
Page 14: Troubleshooting
Check connection of electrode lines. If necessary, replace equipment. high. Short circuit in electrode lines. Temperature sensor defective, temperature reading Check conductivity electrode LRG 16-9 and, if necessary, too low. replace it with a new one. Check wiring (short circuit, Temperature sensor defective, temperature reading interruption?) too high. -
Page 15: Maintenance
Re-install the conductivity electrode. Observe the notes given in section "Installation" and "Electrical Connection". Removing and disposing of the conductivity electrode Remove and discard conductivity electrode LRG 16-9 1. Detach sensor sleeve from the conductivity electrode. 2. Before removing the equipment make sure that is is neither hot nor under pressure. - Page 16 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 818867-04/06-2017cm (808786-04) · GESTRA AG · Bremen · Printed in Germany...
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