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The sensor also has additional features including www.abb.com/measurement dry standard verification and automatic cleaning. or by scanning this code: The sensor is designed for use with the ABB AWT420 dual-input transmitter. Search for or click on: Data Sheet AWT420...
4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Health and safety Safety precautions Symbols that appear in this document are explained below:...
Symbols that may appear on this product are shown below: (Europe only) Protective earth (ground) terminal. ABB is committed to ensuring that the risk of any environmental damage or pollution caused by any of Functional earth (ground) terminal. its products is minimized as far as possible. The...
4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Installation Siting requirements Make sure that there is a clearance of 200 mm (7.9 in) all around the sensor, to let the turbidity sensor be easily removed for...
An optional de-bubbler (part number 7997 500) is available to eliminate gas bubbles. Refer to Install the optional de-bubbler on page 8. Figure 4 4690 Series – sample outlet connector location...
4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Install the optional de-bubbler Mounting the de-bubbler Mount the de-bubbler vertically with the flow upwards.
Drain valve Sample in Optional Figure 6 Typical system installation for 4690 series turbidity systems NOTICE 1 To prevent degassing of the sample, which can cause very erratic readings, do not exceed this measurement. 2 This is the minimum installation distance that ensures adequate flow rate through the sensor. Increase this distance if you...
If the comparison with a primary standard shows that the turbidity value of the secondary standard has changed, the A key feature of the 4690 Series Turbidity system is the dry secondary standard can be assigned a new turbidity value for secondary calibration standard.
4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Calibration verification with a secondary NTU value indication Zero NTU indication...
4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Calibration with a primary standard NTU value indication Zero NTU indication...
4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A 9 Spares and consumables Maintenance kits Part number...
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4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Notes...
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4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Notes...
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4 6 9 0 S E R I E S | T U R B I D I T Y S E N S O R | O I/AT S 4 1 0 - E N R E V. A Notes...
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We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.