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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422
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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 1

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 ƒÞ Dual input enables two measurements from one instrument, each input can be either high range or low range – cost effective ƒÞ Surrogate color measurement – significant savings on operational costs through lower maintenance requirements ƒÞ Savings on alum or ferric are achieved on potable water treatment plants – coagulation control cost saving ƒÞ Less alum, less sludge – reduced sludge disposal costs ƒÞ THM (trihalomethanes) precursor alert – provides advanced warning of increased risk of THM development ƒÞ Automatic compensation for turbidity – reduces initial capital expenditure, minimizing operational costs ƒÞ Reagentless operation – significant savings in operational expenditure ƒÞ 0n-line diagnostics – cleaner failure, loss of signal, out of sample Data Sheet SS/AV4ORG_3 A robust, easy-to-use range of continuous on-line monitors

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 2

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 2 AV400 Series Dissolved Organics Monitors Many dissolved organic carbon compounds (DOC) commonly found in potable water absorb ultraviolet radiation. These include Humic and Fulvic Acids that gives water a characteristic yellow color. Dissolved organics can also result in the formation of Trihalomethanes (THMs) as a by-product of chlorination. The AV400 Series of monitors are designed for optimizing the performance of potable water treatment plants, providing significant cost savings and...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 3

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 3 AV400 Series Transmitter The transmitter incorporates the latest technology to provide a highly reliable, yet flexible, feature-packed device designed to satisfy a diverse range of process monitoring and control applications. On dual-input monitors both measured parameters are displayed simultaneously. High Functionality as Standard The display can show inferred values, enabling the monitor to be configured to provide the information most valuable to the user. A correction factor must be...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 4

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 4 Applications There are many applications where the AV400 Dissolved Organics Monitor can be used to improve on more traditional methods of measurement and control of water quality. Surrogate Color Monitor for Coagulation Control Extensive field trials have established that the AV400 High Range Dissolved Organics Monitor performs well as a surrogate color monitor on applications where the major color constituents of the raw water are humic and fulvic acids. These acids are organic compounds...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 5

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 5 Algal Bloom Toxins The formation of toxins as a result of the decomposition of algal blooms, that die out during cold periods, frequently cause taste and odor problems and a risk of THMs (Trihalomethanes) in the final treated water. It has been shown that monitoring the DOC (dissolved organic carbon compounds) in the raw water gives an early warning of these events so the appropriate action can be taken. The often involves the addition of powdered activated carbon at the coagulant dosing...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 6

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 6 Specification General Sensor range (Based on potassium hydrogen phthalate calibration standards) AV410/411 Low range 0 to 20mgl–1C AV420/422 High range 0 to 100mgl–1C Linearity Low range ±2% of reading or 0.15mgl–1 C whichever is the greater High range ±2% of reading or 0.5mgl–1 C whichever is the greater Reproducibility Low range ±0.15mgl–1 C High range ±0.5mgl–1 C Inferred units Absorbance units/metre Color (°H) Coagulant dose (mgl–1) TOC (mgl–1) User Defined Maximum current output scale...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 7

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 7 …Specification Relay outputs Number of relays Three supplied as standard, configurable to one or both sensor inputs or status Set point adjustment Fully programmable as normal or failsafe, high/low or status Hysteresis Programmable 0 to 5% in 0.1% increments Delay Programmable 0 to 100 minutes in 1 minute intervals Relay contacts Single-pole changeover Rating 5A 115/230V AC, 5A DC Insulation 2kV RMS contacts to earth/ground Power supply Voltage requirements 85 to 260V AC 50/60 Hz Optional 9...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 9

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 9 Dimensions in mm (in.) High Range Sensor Low Range Sensor Dimensions in mm (in.) 369 (14.52) 189 (7.44) 179 (7.05) 81 (3.18) 162 (6.38) dia. 110 (4.33) 115 (4.53) 196 (7.71) 410 (16.14) 327 (12.87) 160 (6.3) 155 (6.1) Fixing Centers 118 (4.64) Fixing Centers Sample outlet connector for 6 (0.24) ID tube located behind the sensor body Four holes 6 (0.24) OD for mounting Sample Inlet (12 [0.47] ID flexible hose connection) Drain (12 [0.47] ID flexible hose connection) Sample Outlet Cleaner...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 10

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 10 Electrical Connections Electrical Connections L N E C A4 Relay 1 NC A5 NO A6 C A7 Relay 2 NC A8 NO A9 C A10 Relay 3 NC A11 NO A12 Analog Output 1 + A13 — A14 Analog Output 2 + A15 — A16 B16 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 Terminal Block C C1 Not Used C2 C3 +12V C4 Trigger Sensor A Cleaner C5 Acknowledge C6 0V C7 Out of Sample Sensor A C8 Common Out-of Sample C9 +12V C10 Trigger Sensor B Cleaner C11 Acknowledge C12 0V C13 Out of Sample Sensor B C14 Common Out-of-Sample C15...

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Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 - 11

Single and Dual Input Dissolved Organics Monitor AV410, AV411, AV420, AV412 and AV422 SS/AV4ORG_3 11 Ordering Information Single & Dual Dissolved Organics Monitors for Potable Water Treatment AV410, AV411, AV420, AV412 & AV422 AV4 X X /X X X 0 X Parameter 1 Low range dissolved organics High range dissolved organics 1 2 Parameter 2 None Low range dissolved organics* High range dissolved organics 0 1 2 Transmitter Enclosure Types Wall IP66/NEMA4X – General Wall-mount – cable glands fitted Wall-mount – cable glands fitted, complete with pipe-mount bracket /1 /2 Wall IP66/NEMA4X – N. American...

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