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ABB 4690 Series, Operating Instruction

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ABB 4690 Series Operating Instruction Download Page 10

10

4 69 0  S E R I E S  |

 T U R B I D I T Y SEN S O R | O I/AT S 410 - EN R E V. A

4  Turbidity sensor electrical connections

Link

To  

AWT420 

transmitter

Green

Red

Blue

Yellow

Blue

Screen

Red

Emitter

Blue

Green

Red

Screen

Receiver

Blue

Red

Screen
Green

Yellow

Wiper unit 

(optional)

Screen

White

Black

Figure 7  Turbidity sensor junction box connections

Summary of Contents for 4690 Series

Page 1: ...ry standard verification and automatic cleaning The sensor is designed for use with the ABB AWT420 dual input transmitter For more information Publications for the associated transmitters are availabl...

Page 2: ...bubbler 8 Mounting the de bubbler 8 Setup procedure for the de bubbler 9 4 Turbidity sensor electrical connections 10 5 Calibration 11 Care and maintenance of secondary standards 11 Calibration verifi...

Page 3: ...equipment Potential safety hazards 4690 turbidity sensor electrical damage to the equipment WARNING Bodily injury To ensure safe use when operating this equipment the following points must be observe...

Page 4: ...as far as possible The European Waste Electrical and Electronic Equipment WEEE Directive that initially came into force on August 13 2005 aims to reduce the waste arising from electrical and electron...

Page 5: ...omponents Sample outlet Flow chamber Inlet isolating valve Drain valve Optical receiver Optical emitter Wiper unit Flow chamber Sample outlet Wiper plug Optical emitter Optical receiver Drain valve In...

Page 6: ...ponents of each sensor Referring to Figure 2 or Figure 3 1 Install the sensor in the position shown with the brackets that are provided Make sure that the sensor is installed within 5 of its vertical...

Page 7: ...imum flow rate of 0 5 L min to prevent solids settling in the pipework Increase the flow rate if it is necessary but do not exceed the maximum flow rate of 1 5 L min When measuring turbidity it is imp...

Page 8: ...r Mount the de bubbler vertically with the flow upwards Disconnect fittings 12 0 5 ID tube rotatable through 360 Drain outlet Sample outlet Removable fitting 12 0 5 ID tubing 150 5 9 CRS 6 5 0 25 540...

Page 9: ...ormance These devices are not supplied with the 4690 Turbidity systems Figure 6 Typical system installation for 4690 series turbidity systems NOTICE 1 To prevent degassing of the sample which can caus...

Page 10: ...idity sensor electrical connections Link To AWT420 transmitter Green Red Blue Yellow Blue Screen Red Emitter Blue Green Red Screen Receiver Blue Red Screen Green Yellow Wiper unit optional Screen Whit...

Page 11: ...ndary standards ABB s secondary standards may be used repeatedly but must be monitored for deterioration All secondary standards can change gradually with time Deterioration can be detected by measuri...

Page 12: ...he zero NTU indication see Figure 9 or Figure 10 facing the optical receiver ensuring the locating lug engages correctly Refer to Figure 11 10 Note the reading on the display 11 Remove the dry standar...

Page 13: ...e of the system 5 When the system is empty close the drain valve 6 Thoroughly dry the flow chamber internally using clean tissue 7 Thoroughly clean and dry the emitter and receiver lenses using clean...

Page 14: ...ses of unstable or erratic readings Look for air bubbles in the sample The bubbles might be due to degassing of the sample caused by either a drop in sample pressure or a rise in temperature Frequent...

Page 15: ...5 psi Ambient operating temperature 0 to 50 C 32 to 122 F Ambient operating humidity Up to 95 RH 1 Maximum measured error across full measurement range limited by uncertainty in Formazine standards 2...

Page 16: ...Pozi Pan screw black Strategic spares Part number Description Kit contents 7998024 Feed drain kit 1 7998149 2 0216509 2 0216510 7998026 Emitter unit ISO infrared LED version 1 7998101 7998029 Receiver...

Page 17: ...4690 SERIES TURBIDIT Y SENSOR OI ATS410 EN REV A 17 Notes...

Page 18: ...18 4690 SERIES TURBIDIT Y SENSOR OI ATS410 EN REV A Notes...

Page 19: ...4690 SERIES TURBIDIT Y SENSOR OI ATS410 EN REV A 19 Notes...

Page 20: ...errors or possible lack of information in this document We reserve all rights in this document and in the subject matter and illustrations contained therein Any reproduction disclosure to third partie...

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