GESTRA LRG 16-40 Original Installation Instructions Download | Manualshive

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Original Installation Instructions

818524-04

Conductivity Electrode

LRG 16-40

LRG 16-41

LRG 17-40

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Summary of Contents for LRG 16-40

Page 1: ...1 E N English Original Installation Instructions 818524 04 Conductivity Electrode LRG 16 40 LRG 16 41 LRG 17 40 ...

Page 2: ...tory Notes Scope of supply 5 Description 5 Function 5 6 System components 7 Installation notes 16 Attention 16 Note 16 Mounting conductivity electrode 16 Installation Technical Data LRG 16 40 LRG 16 41 LRG 17 40 8 9 Note 8 Name plate marking 10 Dimensions 11 13 Key 15 Example of installation 17 18 Key 18 Tools 18 Example of Installation LRG 16 40 LRG 16 41 LRG 17 40 14 Key 15 Functional Elements ...

Page 3: ... 25 Apply mains voltage 25 Setting parameters 25 Fault finding list for troubleshooting 26 27 Cleaning measuring electrode 27 Replacing electronic circuit board 27 Note 27 Wiring LRG 16 40 LRG 16 41 LRG 17 40 19 Bus cable 19 Note 19 Assignment of sensor connectors 20 Attention 20 Wiring diagram for CAN Bus system example 20 Wiring diagram of conductivity electrode LRG 16 40 LRG 17 40 21 Wiring dia...

Page 4: ...al con ductivity of liquid fluids For conductivity limiting or continuous boiler blowdown the conductivity electrodes LRG 16 40 LRG 16 41 LRG 17 40 must only be used in conjunction with TDS controller LRR 1 40 and an operating terminal display unit type URB or SPECTORcontrol To guarantee a trouble free operation observe the requirements made on water quality as specified in the pertinent TRD and E...

Page 5: ...troller LRR 1 40 and an operating device type URB or SPECTORcontrol the con ductivity electrode LRG can be used as conductivity limiter and continuous blowdown controller in steam boilers and pressurized hot water plants or as conductivity meter in condensate and feedwater systems The conductivity electrodes LRG 16 40 LRG 17 40 are particularly well suited for steam boilers with low TDS content e ...

Page 6: ...ed The standard curve temperature compensation is suitable for boilers operating with variable pressure which means that the boiler does not have a fixed working pressure e g low load 10 bar full load 15 bar The standard curves of feedwater conditioning agents with different basic conductivities com pensate for the influence of the temperature on readings within the operating range n Temperature c...

Page 7: ...ctivity electrode LRG Functions Conductivity limiter continuous blowdown controller Data exchange via CAN bus to ISO 11898 using CANopen protocol URB 1 URB 2 Operating display unit Functions Parameterization indication via LCD display Data exchange via CAN bus to ISO 11898 using CANopen protocol ...

Page 8: ...200 300 400 500 600 800 1000 mm LRG 16 41 180 300 380 500 600 800 1000 mm Temperature sensor Resistance thermometer PT 1000 Conductivity measuring range LRG 16 40 LRG 17 40 0 5 12000 μS cm at 25 C 0 25 6000 ppm parts per million Preferred measuring range up to 500 μS cm LRG 16 41 100 10000 μS cm at 25 C 50 5000 ppm parts per million Measuring cycle 1 sec Time constant T ascertained by using the tw...

Page 9: ...tic soda 1080 μS cm 3 NaOH Caustic soda 5400 μS cm 4 NaOH Caustic soda 11000 μS cm 5 Na3PO4 Trisodium phosphate 190 μS cm 6 Na3PO4 Trisodium phosphate 1100 μS cm 7 Na3PO4 Trisodium phosphate 5900 μS cm 8 Na3PO4 Trisodium phosphate 11200 μS cm 9 Na2SO3 Sodium sulphite 980 μS cm 10 Dipolique 444 200 μS cm 11 Levoxin 195 μS cm Power consumption 3 8 W Fuse Electronic thermal fuse Tmax 85 C hysteresis ...

Page 10: ...WÜL xx 007 Pmax Pmax Tmax Tmax PN40 G1 1 4571 IP65 Leitfähigkeitselektrode Conductivity electrode Electrode de mesure de conductibilitè 32 bar 464psi 238 C 460 F 18 36 V DC 100 10000µS cm 50 5000ppm IN OUT CAN Bus VS Nr Mat Nr 0525 Münchener Str 77 D 28215 Bremen Betriebsanleitung beachten See installation instructions Voir instructions de montage Tamb 70 C 158 F TÜV WÜL xx 007 Pmax Pmax Tmax Tmax...

Page 11: ...11 Technical Data continued Fig 2 LRG 16 40 Dimensions 40 1 ISO 228 1 RA 12 5 RA 3 2 0 5 E A L E mm 200 300 400 500 600 800 1000 b 68 A F 41 173 336 20 C M 1 ISO 228 1 N 28 ...

Page 12: ...12 Technical Data continued Fig 3 LRG 17 40 Dimensions continued E mm 200 300 400 500 600 800 1000 40 1 ISO 228 1 RA 12 5 RA 3 2 0 5 E A L A F 41 28 173 336 20 C M 1 ISO 228 1 N ...

Page 13: ...13 Technical Data continued Fig 4 LRG 16 41 Dimensions continued E mm 180 300 380 500 600 800 1000 40 1 ISO 228 1 RA 12 5 RA 3 2 0 5 E A L b 68 A F 41 173 336 20 C 1 ISO 228 1 30 ...

Page 14: ...14 Functional Elements Fig 5 LRG 16 40 LRG 16 41 LRG 17 40 B C D Fig 6 LRG 16 40 Shown without cover plate G F I H J 3 2 1 K Toggle switch white C ...

Page 15: ...s recess head screws M4 C M 12 sensor connector jack 5 poles A coded D Cover E Length of installation and measuring length F Terminal strip G Fixing screws for electronic circuit board H Connection for functional earth I Gasket J Fixing nut for terminal box K Terminal lugs for electrode wires functional earth L Thermal insulation M Measuring tube N Set screw M 2 5 DIN 913 Key ...

Page 16: ...60 mm between the lower end of the measuring tube and the boiler wall the smoke tubes and any other metallic fittings as well as the low water level n Do not cut the measuring electrodes n Avoid subjecting the electrode to shocks Note n For the approval of the boiler standpipe the relevant local and national regulations must be observed n Three examples of installation are shown on pages 17 and 18...

Page 17: ...inuous boiler blowdown direct installation of electrode via measuring pot and connection of continuous blowdown valve Fig 8 NW LW NB A GESTRA Steam Systems GESTRA LRG 16 40 LRG 16 40 4 A 4 5 6 8 A 250 400 336 1 ISO 228 1 R 250 600 336 1 ISO 228 1 R 197 DN mm A mm 15 182 20 184 25 184 40 189 R LRG 16 40 LRG 17 40 R 30 mm LRG 16 41 R 60 mm LRG 16 40 R LRG 16 40 LRG 17 40 R 30 mm LRG 16 41 R 60 mm ...

Page 18: ... type connecting piece Key Fig 9 Conductivity metering and continuous boiler blowdown installation of electrode in top blowdown line via separate measuring pot 6 5 1 ISO 228 1 DN 15 40 Outlet Inlet DN 15 40 7 A Tools n Open end spanner A F 18 19 mm n Open end spanner A F 41 mm n Screwdriver for socket head cap screws size 1 3 n Screwdriver for cross recess head screws size 1 and 2 LRG 16 40 ...

Page 19: ...via code switches 3 S8 to S10 Fig 6 Default factory setting of conductivity electrode LRG baud rate 250 kbit s cable length 125 m For longer cable lengths reduce baud rate accordingly Make sure that all bus nodes feature the same settings S 8 S 9 S 10 Baud rate Cable length Number of pairs and conductor size mm2 OFF ON OFF 250 kBit s 125 m 2 x 2 x 0 34 Factory setting ON ON OFF 125 kBit s 250 m 2 ...

Page 20: ...ect them to the central earthing point CEP in the control cabinet n If equipotential bonding currents outdoor installations are to be expected disconnect the screens from the central earthing point n If two or more system components are connected in a CAN bus network the first and the last devices must be provided with a terminating resistor 120 Ω electrode pin 4 CH pin 5 CL control unit terminal ...

Page 21: ...ig 13 Terminal lug Code switch for setting the node ID and baud rate Measuring electrode Temperature sensor Ground Connecting for functional earth Toggle switch white Pt1000 Terminal lug Code switch for setting the node ID and baud rate Measuring electrode Temperature sensor Ground Connecting for functional earth Toggle switch white Pt1000 ...

Page 22: ...lised safety power supply unit e g SITOP Smart 24 V 2 5 A The power supply unit must feature electrical isolation for protection against dangerous contact voltage To ensure safe electrical isolation the separating equipment must meet the requirements for double or reinforced isolation as specified in DIN EN 50178 or DIN 61010 1 or DIN EN 60730 1 or DIN EN 60950 The power supply unit must be provid...

Page 23: ...ponents and can be used straight away without having to set the node ID Factory settings The conductivity electrode features the following factory set default values n Baud rate 250 kbit s 125 m bus cable length n Node ID 051 Enter the assigned node ID on the name plate Node ID Should it be necessary to establish other node IDs please take the interdependence of the equipment into consideration an...

Page 24: ... ID must not be used for more than one item of equipment in the CAN bus system The node ID 0 is not permissible Attention 3 3 Node ID Baud rate In a CAN bus system a maximum of 123 nodes devices can be managed Each node has its own address node ID This address can be set via a 10 pole code switch 3 Fig 4 Node ID 51 S1 ON 1 S2 ON 2 S3 OFF 4 S4 OFF 8 S5 ON 16 S6 ON 32 S7 OFF 64 Factory setting Node ...

Page 25: ...es of the first and last devices provided with 120 Ω terminating resistors Apply mains voltage n Apply mains voltage to control unit LRR 1 40 or apply bus supply voltage n The green LED 1 Fig 6 lights up and goes out approx every 5 s The data exchange is continuous Setting parameters Use operating device URB or SPECTORcontrol to configure parameterize operate and show the control parameters of the...

Page 26: ...posits on the measuring surface cause MAX or MIN alarms although the actual value is between these limits reference measurement Remedy Remove conductivity electrode and clean measuring surface Fault The earth connection to the vessel is interrupted No function Remedy Clean seating surfaces and screw in the equipment together with the supplied joint ring 33 x 39 form D DIN 7603 material 2 4068 brig...

Page 27: ... adhesive deposits with a grease free cloth n To remove adhesive deposits use emery cloth medium grain Replacing electronic circuit board 1 Undo cover screws B and remove terminal cover D 2 Pull the electrode wires out of the terminal lugs K on the circuit board Remove terminal strip F 3 Undo earth connection H 4 Unscrew the fixing screws G of the electronic circuit board and take out the circuit ...

Page 28: ...asuring pot are depressurised O bar and cooled down to room temperature 20 C Attention The CAN bus data line must not be interrupted during operation Before removing bus cables from the terminal strip make sure that all connected devices are out of service If data lines of equipment sending data are interrupted a malfunction message will be generated Disposal Remove the conductivity electrode and ...

Page 29: ...29 For your notes ...

Page 30: ...30 For your notes ...

Page 31: ...31 For your notes ...

Page 32: ...8545 05 GESTRA AG Bremen Printed in Germany GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon 49 421 3503 0 Telefax 49 421 3503 393 E mail info de gestra com Web www gestra de Agencies all over the world www gestra de ...

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