GESTRA LRGT 16-1 Installation & Operating Instructions Manual
Conductivity transmitter lrgt 16-1;
conductivity transmitter lrgt 16-2;
conductivity transmitter lrgt 17-1
Hide thumbs
Also See for LRGT 16-1:
- Installation & operating manual (72 pages) ,
- Installation instructions manual (68 pages)
Subscribe to Our Youtube Channel
Related Manuals for GESTRA LRGT 16-1
Summary of Contents for GESTRA LRGT 16-1
- Page 1 GESTRA Steam Systems LRGT 16-1 English LRGT 16-2 LRGT 17-1 Installation & Operating Instructions 818726-06 Conductivity Transmitter LRGT 16-1 Conductivity Transmitter LRGT 16-2 Conductivity Transmitter LRGT 17-1...
-
Page 2: Table Of Contents
Notes on the Declaration of Conformity/Manufacturer's Declaration ............6 Technical data LRGT 16-1, LRGT 16-2, LRGT 17-1 ......................7 Scope of supply ............................9 Name plate/marking ..........................9 Installation Dimensions of LRGT 16-1, LRGT 16-2, LRGT 17-1 ................10 Key ...............................11 Tools ..............................11 Installation Mounting the conductivity transmitter ....................12 Installation examples LRGT 16-1, LRGT 16-2, LRGT 17-1 .......................13... - Page 3 Checking the electronic circuit board ....................25 Replacing the electronic circuit board ....................25 Maintenance Safety note ............................26 Cleaning the measuring electrode ......................26 Removing and disposing of the conductivity transmitter Removing and disposing of conductivity transmitters LRGT 16-1, LRGT 16-2, LRGT 17-1 ......27...
-
Page 4: Important Notes
Important notes Intended use Use conductivity transmitters LRGT 16-1, LRGT 16-2 and LRGT 17-1 only for measuring electrical conductivity in liquids. Conductivity transmitters LRGT 16-1 / LRGT 16-2/17-1 can be used as conductivity limiters or continuous blowdown controllers in steam boilers in combination with the following equipment:... -
Page 5: Safety Note
Conductivity controller LRR 1-53 Industrial controller KS 90-1 Conductivity transmitters LRGT 16-1, LRGT 17-1 are mainly used in steam boilers with low TDS content, e.g. steam regenerators, high-pressure boilers and condensate tanks. Conductivity transmitter LRGT 16-2 is mainly used in industrial boilers up to PN 40 and max. -
Page 6: Directives And Standards
Conductivity transmitter LRGT 16-1 is certified for marine use. LV (Low Voltage Directive) and EMC (Electromagnetic Compatibility) Conductivity transmitters LRGT 16-1, LRGT 16-2, LRGT 17-1 conform to the requirements of the Low Voltage Directive 2014/35/EU and the EMC Directive 2014/30/EU. -
Page 7: Technical Data
LRGT 17-1: Spacer discs PEEK HT Measuring length and installed length (electrode rod cannot be cut) LRGT 16-1, LRGT 17-1: 200, 300, 400, 500, 600, 800, 1000 mm (for marine applications: max. 400 mm) LRGT 16-1: 180, 300, 380, 500, 600, 800, 1000 mm... - Page 8 Technical data continued LRGT 16-1, LRGT 16-2, LRGT 17-1 continued LRGT 16-1, LRGT 17-1 Measuring ranges*) (µS/cm at 25 °C) Current output mA = µS/cm 4 mA 20 mA Preferred measuring range up to 500 µS/cm corresponds to corresponds to...
-
Page 9: Scope Of Supply
Technical data continued Scope of supply LRGT 16-1 1 Conductivity transmitter LRGT 16-1 1 Sealing ring 33 x 39, form D, DIN 7603, 1.4301, bright annealed 1 Installation & Operating Instructions LRGT 16-2 1 Conductivity transmitter LRGT 16-2 1 Sealing ring 33 x 39, form D, DIN 7603, 1.4301, bright annealed 1 Installation &... -
Page 10: Installation
Installation Dimensions of LRGT 16-1, LRGT 16-2, LRGT 17-1 GESTRA Steam Systems GESTRA Steam Systems µS-ppm GESTRA GESTRA LRGT 16-2 LRGT 16-1 b = 68 b = 68 G1 A, ISO 228 G1 A, ISO 228 ∅ 40 [mm] G1 A, ISO 228 LRGT 1-..1 LRGT 16-2... -
Page 11: Key
inspection. Refer to pages 13 and 14 for typical installation examples. LRGT 16-1 (for marine applications) Max. admissible measuring/installed length: 400 mm. When installing the conductivity transmitter in a steam boiler, make sure it is securely ... -
Page 12: Mounting The Conductivity Transmitter
Installation Attention LRGT 16-1, LRGT 17-1 Provide spacing of approx. 30 mm between the lower end of the measuring tube and the boiler wall, the smoke tubes and any other metallic fittings, and the low water level (LW). Do not cut the measuring electrode or measuring tube! ... -
Page 13: Installation Examples
G 1 A, ISO 228 LRGT 16-1 LRGT 16-2 DN 50 LRGT 17-1 R*: LRGT 16-1, LRGT 17-1 R = 30 mm Fig. 6 LRGT 16-2 R = 60 mm Conductivity monitoring and continuous boiler blowdown, direct installation of conductivity trans-... -
Page 14: Key
Installation examples continued LRGT 16-1, LRGT 16-2, LRGT 17-1 continued Conductivity monitoring and continuous boiler blowdown, installation of conductivity transmitter in the blowdown line via a separate level pot Outlet DN 15-40 G 1 A, ISO 228 Inlet LRGT 16-1... -
Page 15: Electrical Connection
Electrical connection LRGT 16-1, LRGT 16-2, LRGT 17-1 GESTRASteam Systems µS-ppm GESTRA LRGT 16-1 1 2 3 4 5 6 7 8 9 0 Toggle switch, white Fig. 9 Fig. 10 Diagram of LRGT 16-1 (shown without cover plate) Connection of conductivity transmitter A self-locking fixing nut i connects the terminal box to the electrode part. -
Page 16: Connecting Lrgt 16-1, Lrgt 16-2, Lrgt 17-1
Electrical connection continued Connecting LRGT 16-1, LRGT 16-2, LRGT 17-1 To connect the conductivity transmitter, please use a screened, multi-core control cable with a min. conductor size of 0.5 mm , e.g. LiYCY 4 x 0.5 mm , max. length: 100 m. -
Page 17: Wiring Diagram For Conductivity Transmitter Lrgt 16-1, Lrgt 17-1
Electrical connection continued Wiring diagram for conductivity transmitter LRGT 16-1, LRGT 17-1 Terminal lugs 2 3 4 5 6 7 8 9 10 Toggle switch, white Measuring electrode Temperature sensor Pt 1000 Ground Connecting point for functional earth 4 - 20 mA max. -
Page 18: Safety Power Supply Unit For Lrgt 16-1, Lrgt 16-2, Lrgt 17-1
Electrical connection continued Safety power supply unit for LRGT 16-1, LRGT 16-2, LRGT 17-1 To supply the conductivity transmitter with 24 V DC, a safety power supply unit (PSU), e.g. Siemens SITOP PSU100C 24V/0.6A, must be used; this must provide a level of isolation against dangerous... -
Page 19: Commissioning Procedure
2. Set the desired measuring range via the code switch. To change the code switch settings you can use a ball-point pen, for example. LRGT 16-1, LRGT 17-1 Code switch Current output mA = µS/cm Measuring range... -
Page 20: Checking The Setting Of Temperature Coefficient T K
Commissioning procedure continued Establishing the measuring range and actual value output continued Note When mains voltage is supplied (during commissioning), the first output will be 4 mA, then the output current increases until it reaches the actual value. Checking the setting of temperature coefficient T For linear compensation of the measured conductivity value at 25°C, the temperature coefficient T factory set to 2.1 % per °C. -
Page 21: Operation
Operation Correcting the measured value If there is a deviation between the indicated conductivity and the measured comparison value, check and change the temperature coefficient T setting. See page 20 for procedure and setting values. Only modify the cell constant if the temperature coefficient setting is no longer sufficient for ... -
Page 22: Function Test
Operation continued Function test 1. To check the functions of the conductivity transmitter, set code switch 10 to ON. This simulates a value that exceeds the measuring range limit and provides a current output of 20 mA. 2. After finishing the function test, set the code switch back to OFF. Code switch 10 Function test Normal operation... -
Page 23: Fault Indications And Troubleshooting
Fault indications and troubleshooting Indications, diagnosis and remedies Attention Please check the following before fault diagnosis: Supply voltage: Is the conductivity transmitter supplied with the mains voltage specified on the name plate? Wiring: Does the wiring conform to the wiring diagram? Fault indications The equipment is not working accurately Error... - Page 24 Fault indications and troubleshooting continued Indications, diagnosis and remedies continued Note To observe the LEDs for fault indication, open the terminal box by unscrewing the cover screws f and removing the housing cover g. The arrow on this cover points to the name plate.
-
Page 25: Checking The Electronic Circuit Board
4. Undo the functional earth f connection. 5. Unscrew the fixing screws e for the electronic circuit board and remove the board. The circuit board is available as a spare part. Order no. LRGT 16-1 LRGT 16-2 LRGT 17-1 321320... -
Page 26: Maintenance
Use abrasive linen (medium grain, e.g. 400 μm) to remove encrusted deposits. For LRGT 16-1, LRGT 17-1 you can also slacken the locking grub screw 4, unscrew the measuring tube 2 by hand, and then clean the electrode rod and measuring surface. Fig. 2... -
Page 27: Removing And Disposing Of The Conductivity Transmitter
Removing and disposing of the conductivity transmitter Removing and disposing of conductivity transmitters LRGT 16-1, LRGT 16-2, LRGT 17-1 1. Switch off the supply voltage. 2. Unscrew the cover screws f and remove the housing cover g. - Page 28 You can find our authorised agents around the world at: www.gestra.com 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 818726-06/03-2017cm (808546-10) · GESTRA AG · Bremen · Printed in Germany...
Need help?
Do you have a question about the LRGT 16-1 and is the answer not in the manual?
Questions and answers