GESTRA URS 2 Installation Instructions Manual Download Page 10 | Manualshive

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10

Functional Elements

URS 2

Fig. 7

a

8

9

0

MAX 55°C

MAX 95%

%

IP 20

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Summary of Contents for URS 2

Page 1: ...1 URS 2 Installation Instructions 818869 01 Limit Switch URS 2 GESTRA Steam Systems EN English ...

Page 2: ...ant Notes Page Explanatory Notes Scope of supply 5 Description 5 Function 5 System components 5 Design 5 URS 2 12 Attention 12 Tools 12 Key 12 Examples of Installation 13 Installation Electrical Connection URS 2 14 Note 14 Tools 14 Wiring diagram 15 URS 2 6 Corrosion resistance 7 Name plate marking 7 Dimensions 8 Technical Data URS 2 9 Key 11 Design URS 2 10 Key 11 Functional Elements ...

Page 3: ...6 Applying mains voltage 16 Contents continued Commissioning Page Limit switch 16 Note 16 Operation Fault finding list for troubleshooting 17 Operation Malfunctions Danger 18 Disposal 18 Decommissioning Limit switch 16 Performance test ...

Page 4: ...mpetence Explanatory Notes Scope of supply URS 2 1 Limit switch URS 2 1 Installation manual ATEX Atmosphère Explosible According the the European Directive 94 9 EC the equipment must not be used in potentially explosive areas Attention The name plate specifies the technical features of the equipment Note that any piece of equipment without its specific name plate must neither be commissioned nor o...

Page 5: ... or MIN relay contact in the URS 2 is energized n MIN alarm according to the selected 0 20 mA signal n Normal operation n MAX alarm according to the selected 0 20 mA signal Two adjustment knobs for setting the MIN and MAX switchpoints Two red LEDs signal MIN and MAX alarm System components NRT 2 1 Level transmitter NRT 2 1 LRR 1 5 Continuous blowdown controller LRR 1 5 LRR 1 6 Continuous blowdown ...

Page 6: ...g cycles contact material silver hard gold plated Switching hysteresis 1 Adjustment knob Two knobs with scales 0 100 for MAX and MIN alarm continuously adjustable Indicators One LED for MAX alarm and one LED for MIN alarm Mains voltage 24 V 110 V 120 V 220 V 240 V 50 to 100 Hz 3 5 VA please state voltage when ordering ancillary unit URN 1 can also be fed with 24 V DC Protection IP 40 Admissible am...

Page 7: ...VA PA VI 830 27 IP 40 GESTRA AG BREMEN TÜV Corrosion resistance If the equipment is used for the intended purpose its safety is not impaired by corrosion Technical Data continued Name plate marking Equipment designation Fig 1 Mains supply ...

Page 8: ...8 Technical Data continued Dimensions Fig 2 106 7 32 51 Fig 3 112 85 ...

Page 9: ...9 Design Fig 6 7 2 3 6 5 4 Fig 4 Fig 5 1 1 URS 2 ...

Page 10: ...10 Functional Elements URS 2 Fig 7 a 8 9 0 MAX 55 C MAX 95 IP 20 ...

Page 11: ...ing 4 Mounting clip 5 Cable entry flexible 6 Cable entry housing 7 Fixing holes d 4 3 mm 8 LED MAX Alarm 9 Adjustment knob for setting the MAX switchpoint 0 LED MIN alarm a Adjustment knob for setting the MIN switchpoint Design Functional Elements Key ...

Page 12: ...elect cable entry 5 and remove corresponding seal On mounting panel 1 Loosen cover screws 1 and detach cover 3 from its base 2 2 Unscrew mounting clip 4 3 Drill hole 7 marked in the base to 4 3 mm 4 Select cable entry 5 6 and remove corresponding seal 5 Fix base with two M4 screws onto mounting panel 1 Cover screws 2 Base 3 Upper part of the housing 4 Mounting clip 5 Cable entry flexible 6 Cable e...

Page 13: ...13 Installation continued Examples of Installation 4 2 5 8 6 6 3 1 MAX 55 C MAX 95 IP 20 Fig 9 Fig 8 7 7 ...

Page 14: ...rews size 2 5 completely insulated according to DIN VDE 0680 1 Note n The rated voltage is indicated on the name plate n When switching off inductive loads voltage spikes are produced that may impair the operation of control and measuring systems We recommand to provide these consumers with commercial arc suppressor RC combinations e g 0 1 µF 100 Ω ...

Page 15: ...15 Electrical Connection continued Wiring diagram Fig 10 URS 2b 1 2 3 4 5 6 10 11 12 7 8 MIN alarm MAX alarm 0 4 20 mA RE 100 Ω with wire link 4 20 mA L N Mains ...

Page 16: ...e the 0 20 mA signal of the external measuring sensor until it falls below the MIN switchpoint adjusted in the URS 2 The LED 0 must light up and the MIN relay must be energized Limit switch Operation Operation in combination with external measuring sensors e g GESTRA level transmitter NRT 2 1b continuous blowdown controller LRR 1 5b und conductivity transmitter LRT 1 5b LRT 1 6b or level monitorin...

Page 17: ...s do not pass outside the adjusted limits Fault Incorrect selection of input 0 mA or 4 mA Remedy Check the output signal of the sensor and adapt the input of the URS 2 accordingly If faults occur that are not listed above or cannot be corrected please contact our service centre or authorized agency in your country ...

Page 18: ...bserve the pertinent legal regulations concerning waste disposal Danger The terminal strips are live during operation This presents the risk of severe cases of electric shock Cut off power supply before mounting or removing the terminal strips and the housing cover ...

Page 19: ...19 For your notes ...

Page 20: ...20 818869 01 05 2012cm 808234 02 GESTRA AG Bremen Printed in Germany Agencies all over the world www gestra de ...

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