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LRG 16-4

Service pressure

PN 40, 32 bar at 238°C

Mechanical connection

Screwed G

A, ISO 228

Materials

Screw-in body: 1.4571, X6CrNiMoTi17-12-2

Measuring electrode: 1.4571, X6CrNiMoTi17-12-2

Insulation PTFE

Four-pole connector: polyamide (PA)

Length of measurement & installation

100, 300, 400, 500, 600, 800, 1000 and 1200 mm

Cell constant

1 cm

-1

Electrical connection

Four-pole connector, cable gland M 16

Protection

IP 65 to DIN EN 60529

Admissible ambient temperature

Max. 70°C

Weight

Approx. 0.5 kg

Approvals:

TÜV certificate

VdTÜV Bulletin "Wasserüberwachung 100" (= Water Monitoring 100):

Requirements made on water level monitoring equipment

Type approval no. TÜV . WÜL . 12-017, 12-018 (see name plate)

Technical data

Name plate / marking

Fig. 1

LRG 16-4

1 Conductivity electrode LRG 16-4

1 Joint ring 17 x 21, form D, DIN 7603, 1.4301, bright annealed

1 Installation manual

Scope of supply

Mat-Nr.:

NL=

TÜV . WÜL . 12 - 017 / 12 - 018

32 bar (464psi)
238°C (460°F)
T amb = 60°C (140 °F)

LRG 16-4

GESTRA AG

Münchener Straße 77

D-28215 Bremen

Pmax

Tmax

µS

ppm

Betriebsanleitung beachten
See installation instructions
Voir instructions de montage

PN 40 G 3/8 1.4571 IP 65

Equipment designation

Safety note

Disposal note

CE Marking
Type approval no.

Manufacturer

Pressure rating, thread type,

material number, protection

Application

range

DN of T-type connector

NL = Measuring length and length of

installation

Содержание LRG 16-4

Страница 1: ...1 LRG 16 4 Installation Instructions 818854 01 Conductivity Electrode LRG 16 4 GESTRA Steam Systems EN English ...

Страница 2: ...f Conformity Declaration by the Manufacturer 6 Technical data LRG 16 4 7 Scope of supply 7 Name plate marking 7 Installation Dimensions LRG 16 4 8 Mounting conductivity electrode 9 Key 9 Tools 9 Examples of installation LRG 16 4 10 Key 11 Electrical connection LRG 16 4 with four pole connector 12 Key 12 Tools 12 Connecting the conductivity electrode 13 LRG 16 4 connecting the four pole connector 1...

Страница 3: ...3 Contents Page continued Maintenance Safety note 15 Cleaning measuring electrode 15 Removing and disposing of the conductivity electrode Remove and discard conductivity electrode LRG 16 4 15 ...

Страница 4: ...EN regulations The equipment must only be used within the admissible pressure and temperature ratings Function The conductivity electrode LRG 16 4 is used in combination with the following equipment as conductivity limiter and continuous blowdown controller in steam boilers Conductivity switch LRS 1 50 Conductivity controller LRR 1 50 Conductivity controller LRR 1 52 In addition the equipment can ...

Страница 5: ...efore essential not to dismantle the conductivity electrode unless the boiler pressure is verified to be 0 bar The conductivity electrode becomes hot during operation Risk of severe burns to hands and arms Before carrying out installation and maintenance work make sure that the equipment is cold The equipment must only be installed wired and commissioned by qualified and competent staff Retrofitti...

Страница 6: ...uitability of the Zener barriers is certified in a separate wiring diagram provided by the manufacturer Note on the Declaration of Conformity Declaration by the Manufacturer For details on the conformity of our equipment according to the European Directives see our Declaration of Conformity or our Declaration of Manufacturer The current Declaration of Conformity and Declaration of Manufacturer are...

Страница 7: ...uirements made on water level monitoring equipment Type approval no TÜV WÜL 12 017 12 018 see name plate Technical data Name plate marking Fig 1 LRG 16 4 1 Conductivity electrode LRG 16 4 1 Joint ring 17 x 21 form D DIN 7603 1 4301 bright annealed 1 Installation manual Scope of supply Mat Nr DN NL TÜV WÜL 12 017 12 018 32 bar 464psi 238 C 460 F T amb 60 C 140 F LRG 16 4 GESTRA AG Münchener Straße ...

Страница 8: ... 3 2 0 5 23 G 3 8 A ISO 228 Ra 12 5 Fig 3 Fig 4 LRG 16 4 with T type connector 170 DN A B C 15 118 95 16 20 129 105 18 25 137 115 18 40 180 150 18 B A C B C Fig 2 LRG 16 4 with four pole connector 1 2 3 4 Screwed G 3 8 A ISO 228 190 70 22 ...

Страница 9: ...ape Do not apply conductive paste or grease to the electrode thread Provide a spacing of approx 40 mm between the lower end of the measuring elec trodes and the boiler wall the smoke tubes and any other metallic fittings and the low water level LW Observe the specified tightening torque Key 1 Measuring length and length of installation 2 Thermal insulation provided on site d 20 mm outside of therm...

Страница 10: ...trode via T type connector and connection of a continuous blowdown valve Fig 5 LRG 16 4 8 6 7 G 3 8 A ISO 228 4 R 40 mm A 250 170 8 5 M Fig 6 9 6 Conductivity monitoring direct installation of conductivity electrode via flanged standpipe on the side of the boiler or installation of electrode in an external level pot 40 100 40 40 7 LW 8 LRG 16 4 ...

Страница 11: ... T piece connector 6 Shut off valve GAV 7 Continuous blowdown valve BAE 8 Boiler drum 9 Level pot 3 MF 88 0 0 Level pot 4 DB 372 Fig 7 Conductivity monitoring and continuous boiler blowdown installation of conductivity electrode in top blowdown line via separate level pot 0 LRG 16 4 continued continued ...

Страница 12: ...inal box d Connecting plate e Insulating plate Key f Contact plate of conductivity electrode g Cable strain relief h Cable gland M 16 PG 9 i Wiring of terminals j Measuring electrode Tools Screwdriver size 1 Screwdriver size 2 5 completely insulated according to DIN VDE 0680 1 3 1 i h g a b c d e f j Fig 9 ...

Страница 13: ... of the terminal box 6 Run cable through cable gland h and upper part of the terminal box c and wire terminals of the connecting plate d in accordance with wiring diagram i 7 Press connecting plate d into the upper part of the terminal box and align cable 8 Fix cable with cable strain relief g and cable gland h firmly into position 9 Replace cover b and insert screw a 10 Put upper part of the term...

Страница 14: ...ve measured value too low Electrode lines interrupted or measuring surface exposed Check connection of electrode lines If necessary replace equipment Check water level and installation Conductivity electrode defective measured value too high Short circuit in electrode lines Check connection of electrode lines If necessary replace equipment Malfunctions Conductivity switch controller does not work ...

Страница 15: ...e scalding all over the body It is therefore essential not to dismantle the conductivity electrode unless the boiler pressure is verified to be 0 bar The conductivity electrode becomes hot during operation Risk of severe burns to hands and arms Before carrying out installation and maintenance work make sure that the equipment is cold The equipment must only be installed wired and commissioned by q...

Страница 16: ...68 62 49 40 E Mail fcd_gestra_singapore flowserve com Web www gestra com Flowserve GB Limited Abex Road Newbury Berkshire RG14 5EY Tel 0044 16 35 46 99 90 Fax 0044 16 35 3 60 34 E Mail gestraukinfo flowserve com Web www flowserve com Great Britain USA Flowserve GESTRA U S 2341 Ampere Drive Louisville KY 40299 Tel 001 502 267 22 05 Fax 001 502 266 53 97 E Mail fcd gestra usa flowserve com South Afr...

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