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Single and Dual Input Dissolved Organics Monitor

AV410, AV411, AV412, AV420 and AV422

User Guide

IM/AV4ORG_3

Summary of Contents for AV410

Page 1: ...Single and Dual Input Dissolved Organics Monitor AV410 AV411 AV412 AV420 and AV422 User Guide IM AV4ORG_3 ...

Page 2: ... these instructions must be read carefully before proceeding 2 Warning labels on containers and packages must be observed 3 Installation operation maintenance and servicing must only be carried out by suitably trained personnel and in accordance with the information given 4 Normal safety precautions must be taken to avoid the possibility of an accident occurring when operating in conditions of hig...

Page 3: ...ration Standard Solutions 14 4 1 1 Zero Standard Solution 14 4 1 2 Span Standard Solution 14 4 1 3 Calibration Checks 14 4 2 Sensor Calibration 15 5 PROGRAMMING 17 5 1 Security Code 17 5 2 Configure Display 18 5 3 Configure Sensors 19 5 4 Configure Alarms 21 5 5 1 Wash Cycle Configuration applicable only to Alarm 3 23 5 5 Configure Outputs 25 5 6 Configure Clock 26 5 7 Configure Logbook 27 5 8 Con...

Page 4: ... Many dissolved organic compounds DOC found commonly in potable water absorb ultraviolet radiation These include Humic Acids that gives water a characteristic yellow color and dissolved organics that result in the formation of Trihalomethanes THMs The monitor is designed for use as a surrogate color monitor coagulation monitor controller and to monitor for THM precursors in potable water treatment...

Page 5: ...wed by a 6 character dot matrix display showing the associated units The lower line is a 16 character dot matrix display showing operating and programming information 2 2 1 Membrane Key Functions Fig 2 2 Alarm LEDs Upper Display Line Lower Display Line Membrane Keys Menu Key Sidescroll Key Downscroll Key Up Key Down Key 1 25 Diss Organics 10 25mg l C mg l C Center Display Line B Advancing to Next ...

Page 6: ...h the Menus Set Backlight LED Backlight CAL USER CODE Calib Sensor A A Fill Zero Sol A 085 A Fill Span Sol A 085 A Cal Complete Calib Sensor B B Fill Zero Sol B 085 B Fill Span Sol B 085 B Cal Complete Set Language English CONFIG DISPLAY Section 5 2 Page 17 Config Sensor A A Displayed Unit A Filter Time A Conv Factor A Flow Alarm A Infer Units A Clean Interval B Displayed Unit B Filter Time B Infe...

Page 7: ...PUTS Config Output 1 AO1 Assign AO1 Range AO1 Span Value AO1 Default AO1 Default Val Config Output 2 AO2 Assign AO2 Range AO2 Span Value AO2 Default AO2 Default Val Section 5 5 Page 23 Use the Downscroll Key to scroll through the Parameters within each Page Section 5 6 Page 24 Set Clock Format dd mm yy Date 01 03 04 Time 12 00 Press To Abort Press To Set CONFIG CLOCK CONFIG SECURITY Alter Sec Code...

Page 8: ...layed Disabling the Lamp UV Warning Disable the lamp before performing any maintenance on the sensor see also Warning on page 2 If Yes is selected Lamp Disabled is shown in the lower display line Manual Cleaning Select Yes to initiate the sensor cleaning system See Section 3 1 See Section 4 2 A3 Type set to Wash Section 5 4 See Section 2 3 3 A3 Type not set to Wash Section 5 4 Return to the top of...

Page 9: ...e also Warning on page 2 If Yes is selected Lamp Disabled is shown in the lower display line Disabling the Lamp Sensor B UV Warning Disable the lamp before performing any maintenance on the sensor see also Warning on page 2 If Yes is selected Lamp Disabled is shown in the lower display line Manual Cleaning Sensor A Select Yes to initiate the Sensor A cleaning system Manual Cleaning Sensor B Select...

Page 10: ...l see below Wash Function not set to Manual The display returns to the top of the Operating Page Press to Wash Manual Wash only Press to Wash and Press to Abort are shown alternately on the lower display line Press the key to initiate the wash cycle The display returns to the top of the Operating Page and the lower display line shows WASH IN PROGRESS until the wash cycle is completed The Wash Func...

Page 11: ...displayed alternate between the inferred units selected see Section 5 3 and the alarm assignment indication Sen A or Sen B dual input monitors only see Section 5 4 Alarm set point in units selected for display see Displayed Units in Section 5 3 Alarm 2 Set Point Alarm set point assignment see Section 5 4 Alarm set point in units selected for display see Displayed Units in Section 5 3 Note Inferred...

Page 12: ... sensor type selected for the Sensor A input in the Factory Settings page see Section 7 1 7320 100 Low Range 0 to 20mgl 1 C 7320 200 High Range 0 to 100mgl 1 C Sensor Type B Dual input monitors only Displays the sensor type selected for the Sensor B input in the Factory Settings page see Section 7 1 Digital Communications Option Board Note Displayed only if the digital communications option board ...

Page 13: ... Clock Date Shows the current date Time Shows the current time Logbook set to On Section 5 7 see Section 3 6 Logbook set to Off Section 5 7 see Section 2 3 See Section 4 2 1 0 AV400 2000 Issue VIEW SOFTWARE VIEW CLOCK SENSOR CAL VIEW SOFTWARE Date 17 03 04 VIEW CLOCK Time 10 48 VIEW LOGBOOK SENSOR CAL VIEW CLOCK Diss Organics ...

Page 14: ...tion 2 3 See Section 4 2 Advance to entries 2 to 10 Note If no more entries are stored the display shows No More Entries View Logbook Use the and keys to access the Errors logbook Note If no entries are stored in the Errors logbook the display shows No More Entries Errors The Errors logbook contains up to 5 entries entry 1 is the most recent each comprising the sensor letter error number and the d...

Page 15: ...h comprising 3 frames Frame 1 contains the entry number sensor letter calibration type Z Zero S Span ZS Zero and Span and the date time of the occurrence Frames 2 and 3 contain the raw outputs from the sensor for both the Zero and Span solutions These values equate to the percentage light transmission through the standard solutions Operating Page see Section 2 3 See Section 4 2 Advance to entries ...

Page 16: ...rom potassium hydrogen phthalate KOOC C6 H4 COOH carbon content 47 05 Analytical Reagent grade and high purity water To prepare a 1000mgl 1 C carbon stock standard solution 1 Dry 2 125 0 005g of potassium hydrogen phthalate at 120 C for 2 hours 2 Dissolve the dried potassium hydrogen phthalate in 500ml high purity water 3 make up to 1 litre in a volumetric flask The solution may be stored in a gla...

Page 17: ...n S or both ZS see Section 3 6 page 12 Sensor B calibration dual input monitors only is identical to Sensor A calibration Single input monitors only return to main menu Alter Sec Code not set to zero Section 5 8 see Section 5 1 Alter Sec Code set to zero Section 5 8 see Section 5 2 Zero Calibration Fill the flowcell with high purity water see Section 4 1 1 Press the key to initiate calibration Not...

Page 18: ...ars in the lower display line After 3 minutes the lower display line shows 100 the display then advances automatically to the next frame Calibration Completed A message is displayed at the end of calibration A Cal Complete calibration successful A Cal Incomplete zero and or span calibration aborted Sensor B calibration dual input monitors only is identical to Sensor A calibration Single input moni...

Page 19: ...o see Section 5 8 Enter the required code number between 0000 and 19999 to gain access to the configuration pages If an incorrect value is entered access to the configuration pages is prevented and the display reverts to the Operating Page see Section 2 3 See Section 5 2 SECURITY CODE 0000 CONFIG DISPLAY ...

Page 20: ...nd keys to select the required backlight option On Backlight is always on Auto Backlight comes on at each button press and switches off one minute after the last button press Return to main menu See Section 5 3 5 PROGRAMMING CONFIG DISPLAY Set Language LED Backlight Set Backlight Auto On CONFIG DISPLAY CONFIG SENSOR Set Backlight Set Language English Deutsch Francais Espanol Italiano ...

Page 21: ...d to the sensor signal Colour H displayed in H The conversion factor set in the Coagulant Dose displayed in mgl 1 A Conv Factor frame see next page is TOC displayed in mgl 1 applied to the sensor signal User Defined The required units are entered in the A User Defined frame see next page and the conversion factor set in the A Conv Factor frame see next page is applied to the sensor signal Notes Wi...

Page 22: ...r changes the monitor readings may not agree with independent laboratory results until a new conversion factor is determined and entered Cleaning Interval Select the required interval between automatic cleaning operations 15 30 or 45 minutes or 1 2 4 6 12 or 24 hours Note The cleaning interval setting is determined by plant experience Check the condition of the flowcell and optical windows at appr...

Page 23: ... 3 is configured to control the wash sequence Note The wash alarm type can be assigned only to alarm 3 and is displayed only when the lower display shows A3 Type Alarm 1 Assign Select the alarm assignment required Sen A The monitor activates an alarm if the dissolved organics content of the Sen B process fluid measured by the selected sensor exceeds or drops below the value set in the Alarm 1 Set ...

Page 24: ... A differential set point can be defined between 0 and 5 of the alarm set point value Set the required hysteresis in 0 1 increments Refer to Figs 5 1 to 5 5 page 22 Alarm 1 Delay If an alarm condition occurs activation of the relays and LEDs can be delayed for a specified time period If the alarm clears within the period the alarm is not activated Set the required delay in the range 0 to 100 minut...

Page 25: ...n Set the wash duration required Wash duration is set in 15 second increments between 15 and 45 seconds then in 1 minute increments between 1 and 10 minutes Recovery Period Set the recovery period required between 0 5 and 5 0 minutes in 0 5 minute increments Fig 5 1 Pulsed and Continuous Wash Cycles 5 5 Configure Alarms 5 5 1 Wash Cycle Configuration applicable only to Alarm 3 Wash Frequency Hours...

Page 26: ...the process variable exceeds the defined set point Low Alarm Actions are the same except the alarm is activated when the process variable drops below the defined set point Relay Energized LED Off Relay De energized LED On Process Variable High Set Point Relay De energized LED Off Relay Energized LED On Process Variable High Set Point Relay Energized LED Off Relay De energized LED On Process Variab...

Page 27: ...utput Select the system reaction to failure Off Ignore failure and continue operation On Stop on failure This drives the analog output to the level set in the Default Val frame below Hold Hold the analog output at the value prior to the failure Default Value The level to which the analog output is driven if a failure occurs Set the value between 0 00 and 22 00mA Configure Output 2 See Section 5 6 ...

Page 28: ... and keys to adjust each field Time Set the time in the form hh mm Press to move between the hours and minutes fields Use the and keys to adjust each field Press to Set and Press to Abort are shown alternately on the lower display line Press the appropriate key to set the clock or abort the changes Set Clock Date 16 03 04 Day Time 11 54 Set Format Press To Set Press To Abort Set Hours CONFIG LOGBO...

Page 29: ...r option board fitted but Serial Communications feature not enabled Section 7 1 see Section 5 8 5 8 Configure Security Alter Security Code Set the security code to a value between 0000 and 19999 Alter Calibration Code Set the sensor calibration access code to a value between 0000 and 19999 Return to main menu See Section 5 9 Logbook CONFIG LOGBOOK Off On CONFIG SECURITY CONFIG LOGBOOK CONFIG SERIA...

Page 30: ...enance Hold Outputs Enables the relay action and analog outputs to be maintained Auto Changes in relay action and analog outputs are disabled during sensor calibration On Changes in relay action and analog outputs are disabled Off Changes in relay action and analog outputs are not disabled Note The LEDs flash while the monitor is in Hold mode Continued on next page See Section 7 1 Hold Outputs set...

Page 31: ...ng Page and CAL ABORTED is displayed Continued below See Section 7 1 Sensor A Outputs Organics and Reference Signals Organics total signal These values equate to the percentage light transmission through the sample Reference total signal The peak values of the light pulse generated by the strobe lamp Instantaneous Reading Internal damping function disabled display shows instantaneous reading from ...

Page 32: ...o Calibration Span Reference Signal Totals Calibration Zero Calibration Span Organics Signal Peak Calibration Zero Calibration Span Reference Signal Peak Calibration Zero Calibration Span Sensor B calibration coefficients dual input monitors only are identical to Sensor A calibration coefficients Single input monitor continued on next page See Section 7 1 Org Totals 100 0Zero A 20 0Span A Ref Tota...

Page 33: ...mpany Standard Save User Config saves the current configuration into memory Load User Config reads the saved user configuration into memory User Config and Factory Config are displayed alternately if a User Configuration has been saved previously Select the configuration required Press to Set and Press to Abort are displayed alternately on the lower display line Press the appropriate key to load s...

Page 34: ... allow an unrestricted view of the front panel displays and controls 6 1 2 Sensor Notes The sensor is supplied fitted with mounting brackets Secure the sensor to a suitable vertical surface in a location that enables easy access for maintenance and calibration A Distance Between Analyzer and Sensor Maximum Distance 750mm 29 5 in Minimum Distance 200mm 7 88 in C Within Environmental Limits IP66 NEM...

Page 35: ...ixing Centers 94 3 7 B Pipe mounting Position U bolts on pipe Position plate over U bolts Secure transmitter to mounting plate Secure plate A Wall mounting Mark fixing centres see Fig 6 2 Drill suitable holes 1 2 3 4 1 2 3 61 23 8 OD Vertical or Horizontal Post Secure instrument to wall using suitable fixings 6 2 Mounting the Transmitter Figs 6 2 and 6 3 6 INSTALLATION ...

Page 36: ...s in mm in Note For maintenance purposes allow the following minimum clearances around the sensor Left for receiver module removal 100 mm 3 94 in Right for emitter module removal 100 mm 3 94 in Top for cleaner module removal 200 mm 7 87 in 410 16 14 327 12 87 155 6 1 between centers 118 4 64 162 6 3 Four holes ø6 0 24 for mounting Sample Inlet 12 i d 0 47 flexible hose connection Drain 12 i d 0 47...

Page 37: ...d flexible hose connection Fix to wall Bracket fixed to flowcell cover emitter side 110 4 3 191 7 52 373 14 7 Dimensions in mm in Notes The emitter end mounting bracket is in two parts to facilitate emitter module removal during maintenance see Section 7 For maintenance purposes allow the following minimum clearances around the sensor Left for receiver module removal 150mm 5 9 in Right for emitter...

Page 38: ...the Optional De bubbler Figs 6 6 and 6 7 De bubbler Part Number 7997 500 91 3 58 150 5 9 between centers Removable Fitting 88 3 47 ø6 5 0 26 Sample Outlet Quick release Fittings 12 0 47 i d flexible hose connections rotatable through 360 540 21 26 Sample Inlet 12 0 47 i d flexible hose connection Drain Outlet Dimensions in mm in ...

Page 39: ...h the AV400 Series UV Dissolved Organics Monitor system Fig 6 7 Typical De bubbler Installation Tundish Flow Regulator Valve A Flow Regulator Valve B Tundish Sample in De bubbler see Note 1 below Drain Outlet 7320 100 Sample Outlet Connector AV400 Adjust flow regulator valve A until the overflow from the de bubbler is at a minimum Adjust the sample flow through the system to between 0 5 and 5 l mi...

Page 40: ...in series with the power supply and the alarm control device which they are to actuate Ensure that the contact rating is not exceeded Refer also to Section 6 5 1 for relay contact protection details when the relays are to be used for switching loads Do not exceed the maximum load specification for the selected analog output range The analog output is isolated therefore the ve terminal must be conn...

Page 41: ...6 8 For AC applications the value of the resistor capacitor network depends on the load current and inductance that is switched Initially fit a 100R 0 022µF RC suppressor unit part no B9303 as shown in Fig 6 8A If the transmitter malfunctions locks up display goes blank resets etc the value of the RC network is too low for suppression and an alternative value must be used If the correct value cann...

Page 42: ...n the transmitter 5 Place the blade of a small flat bladed screwdriver into the knockout groove and tap the screwdriver smartly to remove the knockout see Caution below Smooth the edges of the hole with a small round or half round file Fit an O ring seal to the the cable gland Insert the cable gland into the hole in the monitor case from the outside Secure the cable gland with the nut 2 3 4 6 Cabl...

Page 43: ...0 Access to Terminals 6 5 Electrical Connections 6 5 3 Access to Terminals Fig 6 10 Terminal Block A Terminal Block B Terminal Block C Case Earth Ground Studs Release the four captive screws and remove the terminal cover plate ...

Page 44: ... 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 TX C16 TX Digital Communications C17 RX C18 RX C19 Common C20 Not Used L N E L Line N Neutral E Connect supply earth to stud on case 85 to 265 V AC Receiver Module Emitter Module Cleaner Module 7320 100 Sensor Factory fitted Links DO NOT REMOVE ve ve 24 V DC...

Page 45: ...nly Key Cal Output 1 Cal Output 2 O1 Adjust 4mA O2 Adjust 4mA O1 Adjust 20mA O2 Adjust 20mA Use the Sidescroll Key to scroll through the Pages within each Menu Use the Menu Key to scroll through the Menus Use the Downscroll Key to scroll through the Parameters within each Page Section 7 1 Page 42 Alter Fact Code Factory Cal A A Fill Zero Sol A 100 A Fill Sol 1 A 100 A Fill Sol 2 A 100 A Fill Sol 3...

Page 46: ... next page Operating Page see Section 2 3 Select Sensor Type Select the sensor type connected to sensor input A 7320 100 Low Range 0 to 20mgl 1 C 7320 200 High Range 0 to 100mgl 1 C Note DO NOT select option 7330 100 The hardware is incompatible Reference Factor Set to 1 000 Reference Signal Lower Limit Set the reference signal level at which the Low Signal status message is displayed default 25 b...

Page 47: ...ued on next page Operating Page see Section 2 3 Select Sensor Model For single input monitors the display appears as shown For dual input monitors Sensor B type selection is identical to Sensor A Set Up Sensor B Factory Cal A Diss Organics B None Set Up Sensor B ...

Page 48: ...ter 3 minutes the lower display line shows 100 the display then advances automatically to the next step Calibrate with Solution 1 Fill the flowcell with a 5mgl 1 7320 100 sensor or 25mgl 1 7320 200 sensor span standard solution prepared from the stock standard solution see Section 4 1 2 Press the key to initiate calibration Note If the key is pressed again at any time before calibration is complet...

Page 49: ...e Section 4 1 2 Press the key to initiate calibration Note If the key is pressed again at any time before calibration is complete the calibration is aborted the display advances automatically to the next frame and A Cal Incomplete is shown on the lower display line Raw Output from Sensor Organic signal Reference signal As calibration proceeds a progress indicator appears in the lower display line ...

Page 50: ... connection details Adjust 20mA Set the milliammeter reading to 20mA Note The analog output range selected in Configure Outputs see Section 5 5 does not affect the reading Refer to Fig 6 11 for connection details Continued below Operating Page see Section 2 3 Calibrate Output 2 Note Output 2 calibration is identical to Output 1 calibration Continued on next page Continued on next page Operating Pa...

Page 51: ...e required Pb Dp PROFIBUS DP digital communications enabled None Digital communications disabled Alter Factory Code Set the factory settings access code to a value between 0000 and 19999 Return to main menu Operating Page see Section 2 3 Digital Comms Alter Fact Code 0000 FACTORY SETTINGS Diss Organics None Pb Dp ...

Page 52: ...taminated by organic matter that may be present inside 8 2 1 Dismantling and Cleaning Figs 8 1 to 8 4 Warning Isolate the transmitter and sensor from the power supply before dismantling the sensor UV Warning The sensor emitter module contains a high intensity xenon strobe lamp that emits ultraviolet UV radiation This must NOT be viewed with the naked eye and must NEVER be operated while outside th...

Page 53: ...ithdraw the emitter module Unscrew the collar and carefully withdraw the cleaner module Unscrew the collar and carefully withdraw the receiver module Perform a manual clean see Section 2 3 to ensure that the wiper blade is in the parked position Apply power to the sensor and perform a manual clean see Section 2 3 to ensure that the wiper blade is fitted correctly and is positioned as shown above w...

Page 54: ...ain Valve Inlet Isolating Valve Flowcell 3 4 Split the flowcell see Fig 8 3 Clean the inside of the flowcell and other assemblies using mild detergent Rinse thoroughly with de ionized water Inspect the wiper blades for wear or damage Replace as necessary see Fig 8 4 Reassemble the flowcell using new seals see Fig 8 3 Refit the emitter and receiver modules using new seals ensuring that the module l...

Page 55: ...m emitter end Remove the two screws securing the mounting plate to the angle bracket Remove the four stainless steel screws holding the flowcell halves together Insert two of the stainless steel screws into the holes indicated and screw them in them slowly and evenly to push the cell halves apart When the O ring seal is clear of the body the cell halves should separate easily 3 2 1 ...

Page 56: ...otate the wiper drive shaft Receiver Glass Flowcell Securing Nut Wiper Blades in the Parked Position 1 2 3 4 Remove the wiper blade securing nut Remove the blades and washers from the drive shaft Ensure the blade drive shaft is correctly positioned by performing a manual clean see Section 2 3 to park the blades Reassemble the components on the drive shaft in the order shown ensuring the wiper blad...

Page 57: ...s 5 Refer to Fig 6 11 and reconnect the emitter and receiver cables 6 Restore the power supply to the system and allow to warm up for five minutes 7 Adjust the emitter brightness see Section 8 4 8 4 Adjusting the Emitter Brightness 1 Fill the flowcell with high purity water 2 Select the TEST MAINTENANCE Page see Section 5 9 3 Scroll to the Org Totals frame page 28 for the relevant sensor 4 Remove ...

Page 58: ...d e t c e t e d e r u s s e r p w o l f e l p m a s f o s s o L t c a t n o c h c t i w s e r u s s e r p w o l f e l p m a s e r o t s e R l a n g i S w o L A l a n g i S w o L B e r a s e s u a c e l b i s s o P r o s n e s e h t m o r f d e v i e c e r l a n g i s o N g n i n a e l c s e r i u q e r r o s n e S a 2 8 n o i t c e S e e s r o s n e s n a e l C e l u d o m r e n a e l c e h t f o ...

Page 59: ...81 Low Range Organics 7320 100 7320 281 High Range Organics 7320 200 Receiver Module Emitter Module n o i t p i r c s e D r e b m u N t r a P r o t i n o M 0 0 4 V A e h t t c a t n o C y n a p m o C d r a o B P U S P n i a M d n a r o s s e c o r P C A V 0 6 2 o t 5 8 9 4 2 0 0 0 4 X A d r a o B P U S P n i a M d n a r o s s e c o r P C D V 0 3 o t 2 1 9 5 2 0 0 0 4 X A M O R P E 0 0 4 V A 0 0 0 ...

Page 60: ...itter and sensor 750mm 29 5 in Sample Flow rate 0 5 to 5l min 1 free of air bubbles A higher flow rate is required at high turbidity levels Temperature 0 to 40 C 32 to 104 F Pressure The sensor should be operated at atmospheric pressure but can withstand 3bar 43 4 psi max Display Type Dual 41 2 digit 7 segment backlit LCD Information 16 character single line dot matrix Resolution Low range 0 01mgl...

Page 61: ...ansmitter IP66 NEMA4X Dimensions 192mm 7 56 in high x 230mm 9 06 in wide x 94mm 3 7 in deep Weight 1kg 2 2 lb Sensor Low Range Dimensions 327mm 12 87 in wide x 410mm 16 14 in high x 162mm 6 38 in deep High Range Dimensions 405mm 15 94 in wide x 373mm 14 68 in high x 136mm 5 35 in deep Weight 6kg 13 2 lb Environmental Data Operating temperature limits 0 to 50 C 32 to 122 F Storage temperature limit...

Page 62: ...r Trigger ve Receiver 12V Receiver 0V Receiver Reference Signal Receiver UV Signal Terminal Block C Flowcell Connections Sensor B Sensor A Cable Colors C9 C3 Cleaner 12V C10 C4 Green C12 C6 Blue Red Cleaner Trigger Cleaner 0V C11 C5 Acknowledge N A Terminal Block A Cable 1 2 Wire Cable 2 3 Wire see note 5 Before making any electrical connections refer to the Warnings on page 37 Earth Ground Stud o...

Page 63: ...ntation pH Conductivity and Dissolved Oxygen Transmitters and Sensors Ammonia Nitrate Phosphate Silica Sodium Chloride Fluoride Dissolved Oxygen and Hydrazine Analyzers Zirconia Oxygen Analyzers Katharometers Hydrogen Purity and Purge gas Monitors Thermal Conductivity Customer Support We provide a comprehensive after sales service via a Worldwide Service Organization Contact one of the following o...

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