YSI IQ SensorNet VisoTurb Sensor User Manual
Contents
1. 3 3 3 2 5 Distances from the ground and wall 3 4 3 3 Installation examples 3 5 3 3 1 Measuring in an open basin or channel range gt 100 FNU 3 5 3 3 2 Measuring in an open channel range gt 100 FNU 3 6 3 3 3 Measurement in pipelines 3 7 3 4 Commissioning Readiness for measuring 3 9 3 4 1 Connect sensor 3 9 3 4 2 Setting table VisoTurb 700 IQ SW 3 11 4 Measuring Ra Wen De h ka ka iR a 4 1 44 Measuring operation 4 1 42 SaliDIallblio us lt a s Santi het ia auod 4 2 4 2 1 General information 4 2 4 2 2 Application 4 3 4 2 3 User calibration for measuring the total suspended solids g TSS 4 4 5 Maintenance cleaning accessories 5 1 5 1 General information 5 1 5 2 Cleaning the sensor shaft and sapphire disc 5 1 5 9 ACCOSSONGS kc ee ned chee ue ode as Siva kk ES 5 3 76039 01 01 2012 Contents VisoTurb 700 IQ SW What to do if 6 1 Technical data s s eee ee eee Rn rrr 7 1 7 1 Measuring characteristics 7 1 7 2 Application characteristics 7 2 f 9 Geheral dala uidere hoe ari ka k2. 76039 01 01 2012 Measuring VisoTurb 700 IQ SW Why calibrate When to calibrate i How is a calibration carried out 4 2 Calibration 4 2 1 General information The following factors can change with time and affect the measurement results e the optical characteristics e g color and particle size and the density of the measuring medium e g dependent on the season e the conditions at the measuring location e g due to growing deposits on the ground and walls The effect of the measurement environment can be reduced by ensuring the optimum conditions see section 3 2 1 and can be compensated by an application offset see section 4 2 2 For measurements of the total suspended solids a user calibration is always required see section 4 2 3 A new user calibration is required if there is any change of the characteristics of the measuring medium or any change of the environment at the measuring location Note Values of the user calibration that have been entered are saved in the controller and thus assigned to the measuring location not to the sensor Therefore if the sensor is exchanged no new user calibration is required The actual level of total suspended solids of your measuring medium is determined by a reference measurement e g gravimetric according to DIN 38414 If the reference measurements do not deviate from the optically determined measured value of the VisoTurb 700 IQ SW
3. ER SEES 7 3 7 4 7 4 Contact Information 8 1 8 1 Ordering amp Technical Support 8 1 8 2 Service 8 1 INdOXES san A lad kane EE dak ar y 9 1 9 1 Explanation of the messages 9 1 9 1 1 Error messages 9 1 9 1 2 Info messages 9 2 9 2 9 3 0 2 ba76039e01 01 2012 VisoTurb 700 IQ SW Overview Structure of the IQ SENSOR NET operating manual 1 1 1 Overview How to use this component operating manual IQ Sensor Net Operating Manual System Operating Manual Ring Binder IQ Sensor Operating Manual MIQ Module Operating Manual MIQ Terminal Operating Manual Component Operating Manuals Fig 1 1 Structure of the SENSOR NET operating manual The IQ SENSOR NET operating manual has a modular structure like the IQ SENSOR NET system itself It consists of a system operating manual and the operating manuals of all the components used Please file this component operating manual into the ring binder of the system operating manual 76039 01 01 2012 Overview VisoT
4. Measuring range AutoRange Measuring ranges for the FNU measuring 0 0 400 FNU 0 4 00 FNU AutoRange automatic changeover of the 0 40 0 measuring range e 0 400 FNU 0 4000 e AutoRange Measuring range for the measuring mode e0 0400NTU NTU 0 4 00 NTU AutoRange automatic changeover of the e 0 40 0 NTU measuring range 0 400 NTU 0 4000 NTU e AutoRange Measuring range for the measuring mode e 0 0400 0 4 00 TEF AutoRange automatic changeover of the 0 40 0 TEF measuring range e 0 400 TEF 0 4000 TEF e AutoRange Measuring range for the measuring mode e 0 0 400 mg mg l SiO2 0 4 00 mg l AutoRange automatic changeover of the 0 40 0 mg l measuring range 0 400 mg l 0 4000 mg l ba76039e01 01 2012 Commissioning VisoTurb 700 IQ SW Setting Selection values Explanation AutoRange Measuring range for the measuring mode e 0 0 400 pom PPM SiO2 0 4 00 ppm AutoRange automatic changeover of the 0 40 0 ppm measuring range e 0 400 ppm 0 4000 ppm e AutoRange Measuring range for the measuring mode e 0 0 400 mg 9 155 0 4 00 mg AutoRange automatic changeover of the 0 40 0 measuring range 0 400 mg l 0 4 00 g 0 40 0 g 0 400 g l 155 Adjustment values from the refe
5. a xylem brand Operating manual VisoTurb 700 IQ VisoTurb 700 IQ SW VisoTurb 700 IQ P VisoTurb 700 IQ SW IQ SENSOR NET turbidity suspended solids sensor ba76039e01 01 2012 VisoTurb 700 IQ SW Note li For the most recent version of the manual please visit www ysi com Contact YSI 1725 Brannum Lane Yellow Springs OH 45387 USA Tel 1 937 767 7241 800 765 4974 Email environmental Q ysi com Internet www ysi com Copyright 2012 Xylem Inc ba76039e01 01 2012 VisoTurb 700 IQ SW Contents VisoTurb 700 IQ SW Contents l OVervieW ciis oe See e kl a E a E ei al 1 1 1 1 How to use this component operating manual 1 1 1 2 Structure of the VisoTurb 700 IQ SW turbidity sensor 1 2 1 3 Recommended fields of application 1 2 1 4 Features of the VisoTurb 700 IQ SW 1 3 2 Safety instructions 2 1 2 1 2 2 2 2 General safety 5 5 2 2 3 Commissioning 3 1 3 1 Scope of delivery 3 1 3 2 Installation si Rex mte e eS S ee 3 1 3 21 Generalinformation 3 1 3 2 2 Flow direction 3 2 3 2 3 3 2 3 24 Sensor orientation
6. the sensor is already optimally adapted to the measuring situation If the reference measurements do deviate from the optically determined measured value of the VisoTurb 700 IQ SW proceed as follows Optimize the conditions at the measuring location see section 3 2 1 Perform a user calibration see section 4 2 3 if you measure the total suspended solids Perform an application offset see section 4 2 2 if the measuring environment affects the measured values ba76039e01 01 2012 VisoTurb 700 IQ SW Measuring 4 2 2 Application offset In an optimum installation sufficient distance to the walls walls made of dark material the effect of the measurement environment is negligibly small If an optimum installation is not feasible due to local circumstances interference effects can be compensated by a measured value correction Note 1 Depending the test sample the optical characteristics of the vessel inner surface can change greatly with time biological films lime deposits This can affect the turbidity measurement Repeat the application offset from time to time as well as to check the effect of the surfaces if excessive turbidity values are suspected Determining the The determination of the correction value can be carried out using correction value normal drinking water Two measurements are performed 1 Measurement in an environment that is as ideal as possible reference value
7. 2 Measurement in the actual measurement environment The correction value is calculated from the two measurements as follows the correction value is usually negative Correction value turbidity value ideal turbidity value real Entering the correction The correction value is entered in the setting table of the turbidity value for the sensor in the Application offset field see section 3 4 2 measurement Ideal measurement An ideal measurement environment for the application offset can be set environment up with the following simple accessories e Bucket made of black plastic with a capacity of at least 101 e Holding device for the sensor g laboratory stand e Shading against direct sunlight cardboard or similar Position the sensor as shown in the following diagram ba76039e01 01 2012 4 3 Measuring VisoTurb 700 IQ SW Setting for total suspended solids measurement Marking in this direction approx 20 cm Fig 4 1 Ideal measurement environment for the application offset 4 2 3 User calibration for measuring the total suspended solids g l TSS The turbidity values of the TSS measurement are converted into FNU units for the concentration of dry substance The g l TSS measuring mode displays the turbidity value as a secondary measured value in FNU The correlation between the FNU units and the concentration of dry substance is achieved via a user calibration At the point
8. the sensor must be taken out of operation and secured against inadvertent operation Safe operation is no longer possible if the sensor e has been damaged in transport has been stored under adverse conditions for a lengthy period of time is visibly damaged no longer operates as described in this manual If you are in any doubt contact the supplier of your sensor The operator of the sensor must ensure that the following rules and operator regulations are followed when dealing with hazardous substances EEC directives for protective labor legislation e National protective labor legislation Safety regulations e Safety data sheets of the chemical manufacturer ba76039e01 01 2012 2 3 Safety instructions VisoTurb 700 IQ SW 2 4 ba76039e01 01 2012 VisoTurb 700 IQ SW Commissioning 3 Commissioning 3 1 Scope of delivery e VisoTurb 700 IQ SW turbidity total suspended solids sensor Operating manual 3 2 Installation 3 2 1 General information The measuring principle of the VisoTurb 700 IQ SW optical scattered light measurement places particular requirements on the measurement location and on the installation of the sensor In slightly turbid test samples 100 FNU infrared light penetrates the test sample deeply Thus the measuring environment can have a significant effect on the measured value displayed Light that is reflected or scattered by the ground or wall can strike th
9. SW 3 2 5 Distances from the ground and wall Note In cases of low turbidity lt 100 FNU the effect of the measuring environment can simulate higher turbidity or an increased level of total suspended solids The effect of the measurement environment can be reduced by ensuring the optimum conditions see section 3 2 1 The following graphic indicates the minimum distances of the measurement windows to the ground or wall which must be observed The effect of the distances on the measured value was determined for various wall materials in the case of a sensor placed vertically to the wall in drinking water see drawing Black plastic material Aluminium A 1 04 2 D Pretended turbidity FNU 2 N 0 2 4 6 8 10 12 14 16 18 20 Distance x cm Fig 3 3 Effect of ground and wall distances on the turbidity measurement Note At low levels of turbidity a minimum distance of at least 10 cm must be kept from the ground or wall Note If an optimum installation is not possible due to the structural conditions at the measuring location e g in narrow pipelines the effects of the measurement environment can be compensated by an application offset see section 4 2 2 ba76039e01 01 2012 VisoTurb 700 IQ SW Commissioning Example Outlet of the preclarification stage 3 3 Installation examples As a rule the VisoTurb 700 IQ SW will measure interference free
10. of time of the user calibration the test sample should be in a state representative of the later measurement type and amount of total suspended solids coloration etc The results of the user calibration are input manually in the setting table of the VisoTurb 700 IQ SW see section 3 4 2 Bring the sensor into the measuring position 2 In the setting table of the turbidity sensor select the g TSS measuring mode and the AutoRange measuring range see section 3 4 2 3 Switch to the measured value display with 4 When the measured value is stable read and record the value secondary measured value 5 If possible take a sample at the same time as the turbidity measurement and if possible directly at the measurement windows ba76039e01 01 2012 VisoTurb 700 IQ SW Measuring lil 6 Determine and note the concentration of total suspended solids in the sample according to a reference procedure e g gravimetric according to DIN 38414 7 Switch to the setting table of the turbidity sensor 8 Select the value range for the total suspended solids contents determined during the reference measurement in the TSS range field 9 Select the value range for the turbidity determined during the reference measurement in the Turbitity range field 10 Enter the values for the concentration of total suspended solids and turbidity obtained from the refere
11. sensor in the IQ SENSOR NET Please observe the technical specifications according to chapter 7 TECHNICAL DATA Only operation according to the instructions in this operating manual is authorized Any other use is considered to be unauthorized Unauthorized use invalidates any claims with regard to the guarantee CAUTION The sensor warms up during operation in the air Consequently pollution can collect in the vicinity of the measurement window due to the evaporation of liquid Therefore avoid any lengthy operation in the air CAUTION Only connect and operate the sensor together with IQ SENSOR NET accessories 2 2 General safety instructions The sensor left the factory in a safe and secure technical condition The failure free function and operational safety of the sensor is only guaranteed if the generally applicable safety measures and the special safety instructions in this operating manual are followed during its use The failure free function and operational safety of the sensor is only guaranteed under the environmental conditions that are specified in chapter 7 TECHNICAL DATA The specified temperature chapter 7 TECHNICAL DATA must be maintained during the operation and transport of the sensor CAUTION The sensor may only be opened by specialists authorized by YSI ba76039e01 01 2012 VisoTurb 700 IQ SW Safety instructions Safe operation Obligations of the If safe operation is no longer possible
12. status info of sensors consists of 32 bits each of which can have the value O or 1 01234567 8 9 1011 12 13 14 15 10000000 00000000 general 00000000 00000000 16 17 18 19 2021 2223 24 25 26 27 28 29 30 31 The bits 0 15 are reserved for general information The bits 16 21 are reserved for internal service information You obtain the status info via a manual query in the menu Einstellungen Setup ServicelList of all components see system operating manual via an automated query of a superordinate process control g when connected to the Profibus of the IQ Data Server see operating manual of the IQ SENSOR NET software pack Note The evaluation of the status info e g in the case of an automated query has to be made individually for each bit Status bit Explanation Status info Bit 0 Component hardware defective Bit 1 SensCheck Measurement interfered Bit 2 SensCheck Ultrasound cleaning system has failed Bit 3 31 ba76039e01 01 2012 9 3 Indexes VisoTurb 700 IQ SW ba76039e01 01 2012 a xylem brand 1725 Brannum Lane Yellow Springs Ohio 45387 USA 1 937 767 7241 800 765 4974 US FAX 937 767 1058 Email environmental ysi com Internet www ysi com
13. when the distances and angles etc specified are observed However interferences at the measuring location see section 3 2 1 may require special adaptations of the installation 3 3 1 Measuring in an open basin or channel range 100 FNU The turbidity sensor can be immersed in the sample using a pendulum mounting assembly e g pendulum mounting assembly EH P 170 pay attention to the minimum immersion depth Alternatively the sensor can be suspended on a chain e g with the EH F 170 swing mounting assembly and EH U 170 sensor holder Make sure that the sensor cannot bump against any walls or obstacles 76039 01 01 2012 Commissioning VisoTurb 700 IQ SW Example Outlet of a waste water treatment plant open channel wall material concrete 3 3 2 Measuring in an open channel range 100 FNU In an open channel the sensor can be immersed in the sample using a wall mounting assembly e g EH W 170 wall mounting assembly please note the minimum immersion depth e Protect the measuring location and the environment against direct sunlight sun shield or similar e Mount the sensor rigidly in the channel At the same time tilt the sensor approx 20 to 45 against the direction of the flow Install the sensor so that the marking on the sensor points towards the outlet of the channel Marking in this direction Fig 3 4 Turbidity sensor in the open channel with EH W 170 fixture ass
14. NU NTU TEF 0 400 0 001 0 4 00 0 01 0 40 0 0 1 400 1 0 4000 1 mg l SiO 0 400 0 001 0 4 00 0 01 0 40 0 0 1 400 1 0 4000 1 ppm SiO 0 0 400 0 001 0 4 00 0 01 0 40 0 0 1 0 400 1 0 4000 1 TSS 0 0 400 mg l 0 001 mg l 4 00 mg l 0 01 mg l 0 40 0 mg l 0 1 0 400 mg l 1 mg l 0 4 00 g l 0 01 g l 0 40 0 g l 0 1 g l 400 9 1 g l ba76039e01 01 2012 7 1 Technical data VisoTurb 700 IQ SW Accuracy Allowed temperature range Allowed pH range of the measuring medium Pressure resistance Type of protection Depth of immersion Operating position Fields of application Process variation coefficient lt 1 in the range to 2000 FNU according to DIN 38402 part 51 Repeatability limit or repeatability lt 0 015 or according to DIN ISO 5725 or min 0 006 FNU DIN 1319 respectively 7 2 Application characteristics Measuring medium 0 C 60 C 32 140 F Operation with ultrasound cleaning system possible up to 40 C Note The ultrasound cleaning system automatically switches off and on again The switching off above 40 C prevents an overheating for example if the minimum immersion depth of the sensor is not maintained Storage transport 5 65 C 23 149 F 4 12 Sensor with connected SACIQ SW sensor connection cable Max allowed overpressure 106 P
15. U N flow thru adapter for installation in a straight pipeline DN 50 The infrared beam is parallel to the pipeline axis and points in the opposite direction to the direction of flow The marking on the sensor points towards the pipeline see Fig 3 5 Note Interferences at the measuring location see section 3 2 1 may require special adaptations of the installation For exceptions to the direction of flow see section 3 2 2 FLOW DIRECTION 76039 01 01 2012 Commissioning VisoTurb 700 IQ SW Example Marking aid 90 pipe installation in this direction 48 Fig 3 6 Turbidity sensor in the pipe 90 The following points must be observed for a right angled installation in the pipe Fig 3 6 e Rotate the sensor so that the marking on the sensor points in the direction of the pipe axis Select a position where the pipe diameter is as large as possible as the installation location see section 3 2 5 DISTANCES FROM THE GROUND AND WALL Before measuring check whether an application offset is required in the case of lower turbidity values see section 4 2 2 Markingaig 1 Connect the SACIQ SW sensor connection cable to the plug head connector of the sensor and screw it tight see section 3 4 1 2 Attach a marking aid adhesive strips or similar in the same position as the marking on the sensor to the plug head connector 3 8 ba76039e01 01 2012 Vi
16. VisoTurb 700 IQ SW Cleaning system Automatic sensor monitoring SensCheck function Instrument safety Ultrasound principle e Recognition of a measurement malfunction Identification of any failure of the cleaning system Applicable norms EN 61010 1 UL 3111 1 CAN CSA C22 2 No 1010 1 7 4 Electrical data Nominal voltage max 24 VDC via the IQ SENSOR NET details see chapter TECHNICAL DATA of the IQ SENSOR NET system operating manual Power consumption 1 5W Protective class IH ba76039e01 01 2012 VisoTurb 700 IQ SW Contact Information 8 Contact Information 8 1 Ordering amp Technical Support Telephone 800 897 4151 937 767 7241 Monday through Friday 8 00 AM to 5 00 PM ET Fax 937 767 1058 Email environmental Q ysi com Mail YSI Incorporated 1725 Brannum Lane Yellow Springs OH 45387 USA Internet www ysi com When placing an order please have the following information available YSI account number if available and Phone Number Model number or brief description Billing and shipping address Quantity Purchase Order or Credit Card 8 2 Service Information YSI has authorized service centers throughout the United States and Internationally For the nearest service center information please visit www ysi com and click Support or contact YSI Technical Support directly at 800 897 4151 When returning a product for service i
17. a 10 bar Max allowed underpressure temporarily 5 x 104 Pa 0 5 bar The sensor fulfills all requirements according to article 3 3 of the directive 97 23 EC pressure equipment directive Sensor with connected SACIQ SW sensor connection cable IP 68 10 bar 106 Pa min 10 cm max 100 m depth see section 3 2 INSTALLATION Water and wastewater monitoring ba76039e01 01 2012 VisoTurb 700 IQ SW Technical data Dimensions Weight without sensor connection cable Connection technique Material 7 3 General data VisoTurb 700 IQ 40 0 Socket SACIQ VisoTurb 700 IQ SW lt 365 204 i NS TT _______ 2 i MES EKS 40 0 Socket SACIQ 59 5 VisoTurb 700 IQ VisoTurb 700 IQ SW approx 990 g approx 1420 g Connection using SACIQ SW sensor connection cable Shaft VisoTurb 700 IQ VisoTurb 700 IQ SW V4A stainless steel 1 4571 POM Sensor head VisoTurb 700 IQ VisoTurb 700 IQ SW V4A stainless steel 1 4571 Titanium Measurement window Sapphire Plug head connector housing POM Plug 3 pole ETFE blue Tefzel Stainless steel can be susceptible to corrosion at chloride concentrations of 2 500 mg l more We recommend to use SW sensors for applications in such test solutions 76039 01 01 2012 7 3 Technical data
18. ating manual before carrying out any work using this sensor In addition to this manual the SAFETY chapter of the IQ SENSOR NET system operating manual must be followed Always keep this component operating manual together with the system operating manual and any other component operating manuals in the vicinity of the IQ SENSOR NET system The turbidity sensor was developed for applications in online measurement essentially in the field of wastewater treatment Thus we assume that the operators are familiar with the necessary precautions to take when dealing with chemicals as a result of their professional training and experience Safety instructions in this operating manual are indicated by the warning symbol triangle in the left column The signal word e g indicates the danger level WARNING indicates instructions that must be followed precisely in order to prevent serious dangers to personnel CAUTION indicates instructions that must be followed precisely in order to avoid slight injuries to personnel or damage to the instrument or the environment Note indicates notes that draw your attention to special features Note indicates cross references to other documents e g operating manuals 76039 01 01 2012 Safety instructions VisoTurb 700 IQ SW Function and operational safety 2 1 Authorized use The authorized use of the VisoTurb 700 IQ SW comprises its use as a turbidity
19. e 5 2 Cleaning the sensor shaft and sapphire disc During normal operation e g municipal wastewater cleaning is recommended if there is any pollution according to visual check ifthe sensor was not in operation for a lengthy period of time but was immersed in the measuring medium e ifthe measured values are suspected of being incorrect usually too low if the SensCheck message appears in the log book Contamination Cleaning agents Sludge and loosely adhering dirt Soft cloth or soft brush warm tap or biological films water with detergent Salt and or lime deposits Acetic acid volume percentage 20 96 soft cloth or soft sponge CAUTION Acetic acid irritates the eyes and the skin When handling acetic acid always wear protective gloves and protective goggles 76039 01 01 2012 Maintenance cleaning accessories VisoTurb 700 IQ SW i Cleaning Note We do not recommend to unscrew the sensor from the sensor connection cable when cleaning the sensor shaft and membrane Otherwise moisture and or dirt can get into the plug connection where they can cause contact problems If you would like to disconnect the sensor from the sensor connection cable please note the following points Before disconnecting the sensor from the SACIQ SW sensor connection cable remove any larger pieces of contamination from the sensor particularly in the area of the plug connection brush
20. e detector in the sensor and thus simulate higher turbidity or an increased level of total suspended solids Direct sunlight can easily interfere with the measurement Scattered light can be kept away from the measurement windows to a great extent by favorable positioning of the sensor For this reason the optimum installation position is especially important for measuring low turbidity values Note i Always maintain a distance of at least 10 cm from the ground and wall The following factors affect the measurement Inclination of the sensor see section 3 2 3 Sensor orientation around its longitudinal axis see section 3 2 4 e Distances from the ground and wall see section 3 2 5 e Light colored heavily light scattering surfaces in the measuring vessel e g vessel inner surfaces or in the measuring environment e Unfavorable geometry of the measuring vessel or unfavorable positioning of the sensor in the measuring vessel e Air bubbles in the test sample e Spatial proximity of two optical sensors Very bright ambient light at the measuring location e g direct sunlight in the open channel 76039 01 01 2012 3 1 Commissioning VisoTurb 700 IQ SW 3 2 2 Flow direction As a general rule the sapphire disc should be positioned clearly against the current in flowing media angle of attack approx 20 to 45 Exception If there are high quantities of foreign bodies with fibrous or
21. ed off Check sample temperature Submerse sensor in sample Operational voltage too low Check installation and cable lengths Follow installation instructions Power unit s overloaded add power unit s Defective components replace components 76039 01 01 2012 Indexes VisoTurb 700 IQ SW Message code El2341 ES1341 ESD341 ESE341 Message code lA1341 Message text Operational voltage too low no operation possible Check installation and cable lengths Follow installation instructions Power unit s overloaded add power unit s Check terminal and module connections Defective components replace components Component hardware defective Contact service SensCheck Measurement interfered Submerse sensor in sample Select bubble free spot for measurement Remove any foreign matter from sensor Avoid influence of large foreign matter Clean sensor Increase signal average time SensCheck Ultrasound cleaning system has failed Return sensor for repair 9 1 2 Info messages Message text Ultrasound cleaning system switched on Check sensor visually Clean sensor if necessary ba76039e01 01 2012 VisoTurb 700 IQ SW Indexes Status info general structure i VisoTurb 700 IQ SW 9 2 Status info The status info is a piece of coded information about the current state of a sensor Each sensor sends this status info to the controller The
22. embly for direct wall mounting Note Interferences at the measuring location see section 3 2 1 may require special adaptations of the installation For exceptions to the direction of flow see section 3 2 2 FLOW DIRECTION ba76039e01 01 2012 VisoTurb 700 IQ SW Commissioning 45 pipe installation Example 3 3 3 Measurement in pipelines Note In cases of low turbidity lt 100 FNU the effect of the measuring environment can simulate higher turbidity or an increased level of total suspended solids The effect of the measurement environment can be reduced by ensuring the optimum conditions see section 3 2 1 Note If an optimum installation is not possible due to the structural conditions at the measuring location e g in narrow pipelines the effects of the measurement environment can be compensated by an application offset see section 4 2 2 If deposits occur on the pipe walls the application offset should be repeated at regular intervals The pipe should be straight for a length of min 50 cm beyond the installation location Angled or tapered pipes can cause interference effects in the case of low turbidity ADA DF 9 d Swivel nut Marking aid in this direction EBST 700 DU N Direction of flow ca 50 cm straight pipe Fig 3 5 Turbidity sensor in the pipe using EBST 700 DU N flow thru adapter Fig 3 5 shows the installation using the EBST 700 D
23. is described in the relevant IQ SENSOR NET system operating manual ba76039e01 01 2012 3 13 Commissioning VisoTurb 700 IQ SW 3 14 ba76039e01 01 2012 VisoTurb 700 IQ SW Measuring j Hl 4 Measuring The turbidity measurement in aqueous media with the VisoTurb 700 IQ SW is conducted nephelometrically in accordance with EN ISO 7027 The turbidity total suspended solids sensor can also be used to determine the total suspended solids content in the sample The appropriate correlation for the given application can be determined via a reference measurement After this adjustment the turbidity value is converted into the concentration of total suspended solids 41 Measuring operation 1 Immerse the sensor in the sample 2 Read the measured value on the terminal of the IQ SENSOR NET system Note Large differences between the temperature of the sensor and sample can falsify the measurement result Thus as a precaution during commissioning wait for 15 minutes before using the measured value Note The allowed temperature of the measuring medium is 0 60 C The ultrasound cleaning system switches itself off automatically if the temperature of the measuring medium is above 40 C When the temperature decreases below 40 C it switches itself on again The switching off above 40 C prevents an overheating for example if the minimum immersion depth of the sensor is not maintained
24. it off in a bucket of tap water wash it off with a hose or wipe it off with a cloth Unscrew the sensor from the SACIQ SW sensor connection cable Always place a protective cap on the sensor plug head connector and on the SACIQ SW sensor connection cable so that no moisture or dirt can get into the contacting surfaces In corrosive environments close the socket of the sensor connection cable with the screwable SACIQ Plug when it is dry in order to protect the electrical contacts from corrosion The protective plug is available as an accessory see section 5 3 ACCESSORIES It is included in the standard scope of delivery of the SACIQ SW sensor connection cable CAUTION The sensor warms up during operation in the air Consequently pollution can collect in the vicinity of the measurement window due to the evaporation of liquid Therefore avoid any lengthy operation in the air 1 Pull the sensor out of the sample 2 Remove any coarse pollution from the sensor by brushing it off in a bucket of tapwater spraying it off with a hose or wiping with a cloth 3 Clean the sensor shaft and the sapphire disc as specified in the section CLEANING AGENTS 4 Then rinse it thoroughly with tap water ba76039e01 01 2012 VisoTurb 700 IQ SW Maintenance cleaning accessories 5 3 Accessories Description Model Order no 480 065Y Screwable plug for sensor SACIQ Plug connection cab
25. large surfaces as for example hairs strings or leaves it may be of advantage to incline the sensor in the direction of the flow so that the sapphire disc does not face the flow 3 2 3 Sensor angle Marking 277 0 20 45 Fig 3 1 Effect of the sensor angle on scattering and reflection from the ground and walls Note Scattering and reflection are lowest at a sensor angle of 45 and at a minimum distance of 10 cm to the ground and walls see section 3 2 5 Note At a sensor angle of 45 keep a minimum distance of 50 cm in the direction of the infrared beam ba76039e01 01 2012 VisoTurb 700 IQ SW Commissioning 3 2 4 Sensor orientation The sensor has a marking arrow symbol on the shaft or glue dot on connection head The infrared beam emerges from the front of the sensor at an angle of 45 in the direction opposite the marking 000 ELS 45 Infrared beam Marking in this direction VisoTurb 700 IQ SW Fig 3 2 Direction of the infrared beam relative to the marking The angle of incidence to the ground and walls can be affected by rotating the sensor around its longitudinal axis The sensor should be turned so that as little light as possible that is scattered or reflected by the wall or ground strikes the measurement window again 76039 01 01 2012 Commissioning VisoTurb 700 IQ
26. le Note 1 Information on other IQ SENSOR accessories is given the YSI catalog and on the Internet ba76039e01 01 2012 5 3 Maintenance cleaning accessories VisoTurb 700 IQ SW ba76039e01 01 2012 VisoTurb 700 IQ SW What to do The sensor automatically switches itself on and off periodically after commissioning Mechanical damage to the sensor Display of OFL Display of Measured value fluctuating heavily Measured values too low 6 What to do if Cause Remedy The available power is sufficient for the initialization of the sensor but not for the operation of the cleaning system As soon as this is switched on communication with the controller is Install another power supply module as close as possible to the VisoTurb 700 IQ SW interrupted Cause Remedy Return the sensor Cause Remedy Measuring range exceeded Seelog book Cause Remedy Measured value invalid Seelog book Cause Remedy Gas bubbles in the medium are in front of the sapphire disc Checkthe installation position of the sensor see section 3 2 and section 3 3 Signal averaging time too short for low values of turbidity Cause ncrease signal averaging time Remedy Sapphire disc polluted Clean sapphire disc see section 5 2 76039 01 01 2012 What to do if Vi
27. nce measurement Note To measure the TSS contents both values of the reference measurement total suspended solids content and the corresponding turbidity value must be entered The following table shows the possible settings Setting Selection values Explanation TSS range 0 0 400 mg l Range for entering the total suspended e 0 4 00 solids contents 9 The setting range is subdivided because it is 0 400 mg l Select the smallest possible range in order to 9 090094 enter the value in the TSS value field as 0 40 0g l precisely as possible 0 400 g l Example Concentration of total suspended solids 35 76 mg l Smallest possible settings range 40 0 Entry in the TSS value field 35 8 mg l TSS value Concentration of total suspended solids in 0 1 TSS as it was determined using the reference procedure The input precision depends on the setting in the TSS range field ba76039e01 01 2012 4 5 Measuring VisoTurb 700 IQ SW Setting Selection values Explanation Turbidity range 0 400 FNU Range for the entry of the turbidity value 0 4 00 FNU Select the smallest possible range in order to 0 40 0 FNU enter the turbidity value in the Turbidity value 0 400 FNU field as precisely as possible e 0 4000 FNU Exampl Reading of the turbidity value 38 2 FNU Smallest possible settings range 0 40 0 FNU Entry in the Turbidit
28. nclude the Product Return form with cleaning certification The form must be completely filled out for an YSI Service Center to accept the instrument for service The Product Return form may be downloaded at www ysi com and clicking on the Support tab 76039 01 01 2012 Contact Information VisoTurb 700 IQ SW 8 2 ba76039e01 01 2012 VisoTurb 700 IQ SW Indexes Message code EA2341 EA3341 EA6341 EA7341 El1341 9 Indexes 9 1 Explanation of the messages This chapter contains a list of all the message codes and related message texts that can occur in the log book of the IQ SENSOR NET system for the VisoTurb 700 IQ SW sensor Note Information on the contents and structure of the log book and the structure of the message code is given in the LOG Book chapter of the IQ SENSOR NET system operating manual Note message codes of the VisoTurb 700 IQ SW end with the number 341 9 1 1 Error messages Message text Sensor temperature too high Check process and application Sensor temperature too low Check process and application Meas range exceeded or undercut Check process Select other meas range Submerse sensor in sample Select bubble free spot for measurement Remove any foreign matter from sensor Avoid influence of large foreign matter Clean sensor Increase signal average time Ultrasound cleaning system switch
29. on for the given application can be determined via a reference measurement After this adjustment the turbidity value is converted into the concentration of total suspended solids The ultrasound cleaning system ensures low maintenance and long term reliable measurement operation The ultrasound source integrated in the sensor excites the sapphire disc at the tip to produce vibrations in the ultrasound range The movement of the surface as a result of this prevents the growth of pollution in almost all cases and thus ensures reliable measured values during continuous operation The AutoRange function selects the optimum resolution for the respective measured value from the enormously large measuring range 0 4000 FNU This monitoring function that is integrated in the sensor is used to continually check the sensor function and to register any malfunctions caused by the measuring medium The correct operation of the ultrasound cleaning system is also continuously monitored 76039 01 01 2012 Overview VisoTurb 700 IQ SW 1 4 ba76039e01 01 2012 VisoTurb 700 IQ SW Safety instructions Special user qualifications General safety instructions gt gt Other labels amp E 2 Safety instructions This component operating manual contains special instructions that must be followed during the operation of the VisoTurb 700 IQ SW turbidity sensor Thus it is essential to read this component oper
30. oning VisoTurb 700 IQ SW i Connecting the sensor to the sensor connection cable Note Do not suspend the sensor on the sensor connection cable Use a sensor holder or an armature Information on this and other IQ SENSOR NET accessories is given in the YSI catalog and on the Internet 1 Take the protective caps off the plug connections of the sensor and the SACIQ sensor connection cable and keep them safe 2 Plugthe jack of the SACIQ SW sensor connection cable onto the plug head connector of the sensor At the same time rotate the socket so that the pin in the plug head connector 1 clicks into one of the two holes in the jack 3 Then screw the coupling ring 2 of the sensor connection cable onto the sensor up to the stop Fig 3 8 Connect the sensor Note The sensor is provided with a long term stable factory calibration for turbidity measurement and is immediately ready to carry out measurements ba76039e01 01 2012 VisoTurb 700 IQ SW Commissioning 3 42 Setting table VisoTurb 700 IQ SW Setting Selection values Explanation Measuring mode FNU Turbidity unit Formazine Nephelometric Units e NTU Turbidity unit Nephelometric Turbidity Units TEF Turbidity Unit Formazine mg l SiO2 Concentration of SiO in mg l e ppm SiO2 Concentration of SiO in ppm e g TSS Conc of total suspended solids in g l for details see section 4 2 3
31. rence TSS val measurement for determining the amount of value total suspended solids Only displayed if the Turbidity range g l TSS measuring mode was selected for details see section 4 2 3 Turbidity value Signal averaging 1 600 secs Response time of the signal filter Depending on the sample matrix the measured values may oscillate more or less e g due to foreign bodies or air bubbles The signal filter reduces the limits of variation of the measured value The signal filter is characterized by the signal averaging time This is the time after which 90 of a signal change is displayed Application offset 20 00 20 00 Correction value for compensation of units depend on measuring mode environmentally dependent interferences The value is added to the measured value for details see section 4 2 2 Ultrasonic cleaning On Off Pulse Switch on or off the ultrasound cleaning function Pulse pulse operation Save and quit The system confirms the saving of the settings and the display switches to the next higher level ba76039e01 01 2012 VisoTurb 700 IQ SW Commissioning Setting Selection values Explanation Quit The display switches to the next higher level without saving the new settings Carrying out settings Switch to the main settings menu from the measured value display with Then navigate to the setting menu setting table of the sensor The exact procedure
32. soTurb 700 IQ SW Measured values too Cause high Remedy Gas bubbles in the medium are in front of the sapphire disc Check the installation position of the sensor see section 3 2 and section 3 3 Light scattering on the walls Measured value flashes Cause Check the installation position of the sensor see section 3 2 and section 3 3 If necessary compensate for effects that cannot be removed with the aid of the application offset function Remedy Maintenance condition is switched on if the maintenance condition was switched on manually e g by pressing the key Switch off the maintenance condition manually in the Display Options menu see system operating manual if the maintenance condition was switched on automatically e g by the cleaning system The maintenance condition will be terminated automatically ba76039e01 01 2012 VisoTurb 700 IQ SW Technical data Measuring principle 7 Technical data 7 1 Measuring characteristics Procedure for measuring scattered light measurement in accordance with EN ISO 7027 DIN EN 27027 or ISO 7027 e 90 measuring angle e Measurement in formazine nephelometric units FNU Conversion of the values to NTU TEF mg l SiO ppm SiO 9 1 TSS total suspended solids Measuring ranges and Measuring mode Measuring ranges Resolution resolutions F
33. soTurb 700 IQ SW Commissioning Connection cable Are the plug connections dry Marking aid f 4 Marking KA Fig 3 7 Marking aid 3 Install the sensor in the flow thru adapter with the aid of the ADA DF 9 adapter see operating manual of the adapter To ensure the correct position loosen the coupling ring on the EBST 700 DU N somewhat and align the marking aid as shown in Fig 3 5 Then tighten the coupling ring 3 4 Commissioning Readiness for measuring 3 4 1 Connect the sensor A sensor connection cable of the SACIQ or SACIQ SW type is required to connect the sensor The cable is available in different lengths Compared to the standard model SACIQ the SACIQ SW sensor connection cable is optimized regarding its corrosion resistance in seawater and brackish water and adapted for use in conjunction with the VisoTurb 700 IQ SW Information on this and other IQ SENSOR NET accessories is given in the YSI catalog and on the Internet Note How to connect the SACIQ SW sensor connection cable to the terminal strip of an MIQ module is described in chapter 3 INSTALLATION of the IQ SENSOR NET system operating manual Before connecting the sensor and sensor connection cable please make sure that the plug connections are dry If moisture gets into the plug connections first dry the plug connections dab them dry or blow them dry using compressed air 76039 01 01 2012 Commissi
34. urb 700 IQ SW VisoTurb 700 IQ VisoTurb 700 IQ SW 1 2 Structure of the VisoTurb 700 IQ SW turbidity sensor Fig 1 2 Structure of the turbidity sensor example VisoTurb 700 IQ Shaft Connection head Optical measurement window BR Ww N Sapphire disc with ultrasound cleaning system 1 3 Recommended fields of application Stationary measurement of the turbidity or suspended solids concentration total suspended solids TSS in water wastewater applications Stationary measurements in seawater and brackish water aquaculture The VisoTurb 700 1Q SW is particularly well suited for applications in polluted measuring media e g in wastewater treatment plants thanks to its robust construction and its efficient ultrasound cleaning system It provides very high measurement accuracy with low maintenance costs ba76039e01 01 2012 VisoTurb 700 IQ SW Overview Turbidity measurement according to EN ISO 7027 Total suspended solids measurement Ultrasound cleaning system AutoRange function SensCheck function 1 4 Features of the VisoTurb 700 IQ SW The turbidity measurement in aqueous media with the VisoTurb 700 IQ SW is conducted nephelometrically in accordance with EN ISO 7027 The turbidity total suspended solids sensor can also be used to determine the total suspended solids content in the sample The appropriate correlati
35. y value field 38 2 FNU Turbidity value Turbidity value as it was determined with the turbidity sensor The input precision depends on the setting in the Turbidity range field 11 Make the sensor settings with and confirm each of them with 12 Select the Save and quit menu item with confirm with solids Note 99 The new settings are stored in the sensor The turbidity sensor is calibrated for the measurement of total suspended The total suspended solids measurement is even more precise the better the current status of the sample corresponds to the status at the time of the user calibration If there is a fundamental change of the characteristics of the sample a new user calibration may be necessary ba76039e01 01 2012 VisoTurb 700 IQ SW Maintenance cleaning accessories Cleaning agents 5 Maintenance cleaning accessories 5 1 General information WARNING Contact with the sample can be dangerous for the user Depending on the type of sample suitable protective measures must be taken protective clothing protective goggles etc The VisoTurb 700 IQ SW sensor does not usually require any maintenance The continuously running ultrasound system prevents the accumulation of pollution in almost all cases Note We recommend cleaning the shaft and the sapphire disc if the sensor has remained in the sample in a non operative condition for any lengthy period of tim
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