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Viomax CAS51D

Installation

Hauser

13

5

Installation

5.1

Installation conditions

5.1.1

Mounting location

‣

Choose a mounting location that can be easily accessed at a later stage.

‣

Ensure that upright posts and fittings are fully secured and vibration-free.

‣

Select an installation location that produces a typical nitrate concentration / a typical

SAC value for the application in question.

‣

Do not install the sensor above aeration discs. Oxygen bubbles may accumulate at the

cuvette gap and distort the measured value.

5.1.2

Orientation

A0013268

 5

Sensor orientation, arrow =
direction of flow

‣

Align the sensor so that the cuvette gap is rinsed by

means of the flow.

Flexdip CYA112 wastewater assembly and Flexdip CYH112 bracket

A0013267

 6

Horizontal, fixed installation

The installation angle is 90°.

‣

Align the sensor in such a way that the

cuvette gap is rinsed by means of the

flow.

A0013270

 7

Suspended vertically from a chain

The installation angle is 0°. Tried and tested

arrangement when operating in ventilated

zones.

‣

Ensure that the sensor is adequately

cleaned. There must be no buildup on the

optical windows.

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Содержание Viomax CAS51D

Страница 1: ... Operating Instructions Viomax CAS51D Photometric sensor for SAC or nitrate measurement BA00459C 07 EN 14 17 71350074 AUTHORIZED DISTRIBUTOR InstrumentsAndControl com Houston Texas USA sales InstrumentsAndControl com 281 609 7170 ...

Страница 2: ...and approvals 12 5 Installation 13 5 1 Installation conditions 13 5 2 Mounting the sensor 14 5 3 Immersion operation 15 5 4 Flow operation 17 5 5 Mounting the cleaning unit 22 5 6 Post installation check 23 6 Electrical connection 24 6 1 Connecting to the transmitter 24 6 2 Ensuring the degree of protection 25 6 3 Post connection check 25 7 Operation 26 7 1 Calibration 26 7 2 Cyclic cleaning 30 8 ...

Страница 3: ...rous situation can result in a fatal or serious injury LCAUTION Causes consequences Consequences of non compliance if applicable Corrective action This symbol alerts you to a dangerous situation Failure to avoid this situation can result in minor or more serious injuries NOTICE Cause situation Consequences of non compliance if applicable Action note This symbol alerts you to situations which may r...

Страница 4: ... treatment plants Monitoring surface waters SAC measurement Organic load in WWTP inlet Organic load WWTP outlet Discharger monitoring Organic load in drinking water Nitrate measurement Nitrate measurement in naturally bodies of water Monitoring nitrate content in WWTP outlet Monitoring nitrate content in aeration basins Monitoring and optimizing denitrification phases Use of the device for any pur...

Страница 5: ...amaged products and protect them against unintentional operation Label the damaged product as defective 3 If faults cannot be rectified products must be taken out of service and protected against unintentional operation 2 5 Product safety The product is designed to meet state of the art safety requirements has been tested and left the factory in a condition in which it is safe to operate The relev...

Страница 6: ...suring light interacts with the medium Detectors detect the measuring signals digitize them and process them to form a measured value Controller responsible for controlling internal sensor processes and transmitting data All data including the calibration data are stored in the sensor The sensor can be precalibrated and used at a measuring point calibrated externally or used for several measuring ...

Страница 7: ...Viomax CAS51D Device description Endress Hauser 7 20 0 79 12 0 47 14 5 0 57 40 1 57 NPT G1 69 2 72 40 1 57 46 1 81 426 16 77 A0031311 3 Sensor with 40 mm gap width dimensions in mm inch ...

Страница 8: ... measured value If only water and turbidity are present both signals are attenuated to the same degree and the ratio remains constant If the medium contains the measured component the signal of the measuring wavelength is attenuated more and the ratio changes This change in the ratio can be converted to determine the nitrate concentration or the SAC value This dependency is non linear Conclusion L...

Страница 9: ...higher measured value The following can be deduced from the interdependencies cited above Sludge floc causes scattering in the medium resulting in the attenuation of both the measuring and reference signal to varying degrees This in turn can bring about a change in the nitrate value due to turbidity High concentrations of oxidizable substances 4 in the medium may result in an increase in the measu...

Страница 10: ...orthwhile 3 3 5 Cross interference when measuring SAC The following have a direct impact on the measuring range COD Color Trends Oxidizable substances absorbing at 550 nm distort the measurement result In instances of this nature a comparison or calibration is necessary Coloration that absorbs in the green spectral range increases the measured value Oxidizable substances with different spectral pr...

Страница 11: ...chnical data If you have any questions please contact your supplier or your local sales center 4 2 Product identification 4 2 1 Nameplate The nameplate provides you with the following information on your device Manufacturer identification Extended order code Serial number Safety information and warnings Compare the data on the nameplate with your order 4 2 2 Product identification Product page www...

Страница 12: ... 4 4 Certificates and approvals 4 4 1 The product meets the requirements of the harmonized European standards As such it complies with the legal specifications of the EU directives The manufacturer confirms successful testing of the product by affixing to it the mark 4 4 2 EAC version The product has been certified according to guidelines TP TC 004 2011 and TP TC 020 2011 which apply in the Europe...

Страница 13: ...may accumulate at the cuvette gap and distort the measured value 5 1 2 Orientation A0013268 5 Sensor orientation arrow direction of flow Align the sensor so that the cuvette gap is rinsed by means of the flow Flexdip CYA112 wastewater assembly and Flexdip CYH112 bracket A0013267 6 Horizontal fixed installation The installation angle is 90 Align the sensor in such a way that the cuvette gap is rins...

Страница 14: ...5 6 A0032901 9 Horizontally in flow assembly CYA251 arrow points in the direction of flow 1 Sensor 2 Medium outlet 3 Cap 4 Flow assembly 5 Medium inflow 6 Rinse connection 5 2 Mounting the sensor 5 2 1 Installation instructions To ensure correct measurement the windows in the cuvette must be free from any sedimentation The best way to ensure this is through the use of a cleaning unit accessory ope...

Страница 15: ...max CAS51D 1 2 3 4 5 A0013215 11 Installation with upright post 1 Protective cover 2 Liquiline CM44x multi channel transmitter 3 Wastewater assembly Flexdip CYA112 4 Viomax CAS51D 5 Flexdip CYH112 holder This type of installation is particularly suitable for strong or turbulent medium flow 0 5 m s 1 6 ft s in basins or channels A cleaning unit accessory operated by compressed air significantly ext...

Страница 16: ...stewater assembly Flexdip CYA112 4 Viomax CAS51D 5 Flexdip CYH112 holder The chain retainer is particularly suitable for applications that require a sufficient distance between the mounting location and the edge of the aeration basin As the assembly is freely suspended any vibration of the upright post is practically ruled out The swinging movement of the chain retainer enhances the self cleaning ...

Страница 17: ...86 3 39 30 1 18 100 3 94 70 2 76 70 2 76 60 2 36 A0013290 15 Dimensions in mm inch Variable length 1 For the necessary installation dimensions refer to the drawing Mount the sensor in a horizontal position as shown in the drawing Drill the holes for the mounting clamps into a wall or panel 2 Secure the mounting clamps The required fastening fixtures screws wall plugs are not included in the scope ...

Страница 18: ...ssible to move the sensor Mount the flow assembly A0033056 16 Sensor installed in flow assembly 1 Release the threaded rings on the flow assembly and remove both O rings 2 Check if the silicone grease provided with the kit is permitted for use in your application If not use a grease that is suitable for your application Lubricate the O rings 3 First slide a threaded ring thread in the direction of...

Страница 19: ...ly on the sensor in such a way that the cuvette gap is visible in the center of the window 7 Tighten both threaded rings Ensure that the assembly cannot change position 8 The cuvette gap must still be visible in the center of the viewing window Close the viewing window again with the cap To guard against loss Secure the viewing window to one of the hose connections no diagram using the transparent...

Страница 20: ...the assembly s hose connections as shown in the diagram This fills the assembly from below and ensures that the assembly is self venting There must be a minimum flow rate of 100 ml h 0 026 gal h Increased response times must be taken into account As an alternative to bypass operation you can also direct the sample flow from a filter unit with an open outlet through the assembly 2 1 3 A0013434 17 F...

Страница 21: ...low 6 Viomax CAS51D 1 3 5 6 2 7 2 2 4 A0032920 19 Connection diagram 1 Main pipe 5 Medium inflow 2 Manually actuated or solenoid valves 6 Flow assembly 3 Medium outlet 7 Medium removal 4 Medium return Mount the sensor in the assembly in accordance with its Operating Instructions BA00495C There must be a minimum flow rate of 100 ml h 0 026 gal h Increased response times must be taken into account ...

Страница 22: ...aning unit Sensors with gap width of 2 mm or 8 mm Mount the compressed air cleaning unit prior to installing the sensor in the measuring point or remove the sensor from the medium Clean the sensor if necessary 1 Screw the elbow plug from the accessory kit into the mounting hole behind the sensor gap and tighten by hand as far as it will go 2 Connect the compressed air supply provided by the custom...

Страница 23: ... kit into the mounting holes behind the sensor gap and tighten by hand as far as it will go 2 Connect the compressed air supply provided by the customer The hose piece with hose coupling provided with the sensor can be used if desired 5 6 Post installation check Put the sensor into operation only if you can answer yes to the following questions Are the sensor and cable undamaged Is the orientation...

Страница 24: ...net If possible only use terminated genuine cables The sensor cables must be shielded Cable sample does not necessarily correspond to the genuine cable supplied 1 2 3 21 Terminated cable 1 Outer shield exposed 2 Cable cores with ferrules 3 Cable sheath insulation 4 22 Inserting the cable 4 Grounding clip 23 Tighten screw 2 Nm The cable shield is grounded using the grounding clamp 1 1 Please note t...

Страница 25: ...connections which are described in these instructions and which are necessary for the required designated use may be carried out on the device delivered Exercise care when carrying out the work Otherwise the individual types of protection Ingress Protection IP electrical safety EMC interference immunity agreed for this product can no longer be guaranteed due for example to covers being left off or...

Страница 26: ...es Reason Organic compounds other than KHP react differently in the spectrum The factory calibration is based on a three point calibration of The factory calibration cannot be deleted and can be retrieved at any time All other calibrations performed as customer calibrations are referenced to this factory calibration 7 1 2 Types of calibration In addition to the uneditable factory calibration the s...

Страница 27: ... account For high precision calibrations in the laboratory the maximum deviation permitted in the measured value can be kept as small as possible and the time frame selected can be as long as possible For calibrations in the field in adverse weather and environmental conditions the maximum deviation permitted in the measured value can be kept suitably large and the time frame selected can be kept ...

Страница 28: ...value Use fully deionized water as a blank value During calibration make sure the sample is homogeneous When calibrating start with a low concentration and increase the concentrations gradually to prevent nitrate carryover Clean and dry the sensor after a calibration Ensure that there is no medium residue in the cuvette gap In this way you avoid mixing the different samples and changing the nitrat...

Страница 29: ...e you have set a sufficient number of points While this type of calibration can be more time consuming it allows the precise adjustment of the measurement technology to the operating conditions of the plant 7 1 7 Calibrating and adjusting the sensor To calibrate the sensor use the same medium sample or sample array that you used to determine the laboratory measured values The sample array can also...

Страница 30: ...causes of error in the following table relate primarily to the sensor Problem Testing Solution No display no sensor reaction Power supplied to transmitter Sensor connected correctly Medium flow present Buildup on optical windows 1 Connect mains voltage 2 Connect sensor correctly 3 Ensure medium is flowing 4 Clean sensor Display value too high or too low Buildup on optical windows Gas bubbles prese...

Страница 31: ...on the medium Every two years Replace optical filters manufacturer service team Every four years Replace strobe lamp manufacturer service team 9 2 Cleaning the sensor Sensor fouling can affect the measurement results and even cause a malfunction The sensor must be cleaned regularly to ensure reliable measurement results The frequency and intensity of the cleaning process depend on the medium Clean...

Страница 32: ...ress Hauser is obliged to follow certain procedures when handling any returned products that have been in contact with medium To ensure swift safe and professional device returns please read the return procedures and conditions at www endress com support return material 10 2 Disposal The device contains electronic components and must therefore be disposed of in accordance with regulations on the d...

Страница 33: ...Two brackets for CAS51D Order number 71110000 11 2 Holder Flexdip CYH112 Modular holder system for sensors and assemblies in open basins channels and tanks For Flexdip CYA112 water and wastewater assemblies Can be affixed anywhere on the ground on the capstone on the wall or directly onto railings Stainless steel version Product Configurator on the product page www endress com cyh112 Technical Inf...

Страница 34: ...r For compressed air cleaning 230 V AC order no 71072583 115 V AC order no 71194623 11 4 Standard solutions Nitrate standard solutions 1 liter 5 mg l NO3 N order number CAY342 V10C05AAE 10 mg l NO3 N order number CAY342 V10C10AAE 15 mg l NO3 N order number CAY342 V10C15AAE 20 mg l NO3 N order number CAY342 V20C10AAE 30 mg l NO3 N order number CAY342 V20C30AAE 40 mg l NO3 N order number CAY342 V20C...

Страница 35: ...0 15 to 75 mg l 1 TOC DOC 0 06 to 30 mg l 1 Clear water small measuring range drinking water CAS51D C2 8 mm gap width SAC 0 5 to 250 1 m COD BOD 0 75 to 370 mg l 1 TOC DOC 0 3 to 150 mg l 1 Clear water average measuring range drinking water WWTP outlet monitoring of water bodies CAS51D C3 2 mm gap width SAC 1 5 to 700 1 m COD BOD 2 5 to 1000 mg l 1 TOC DOC 0 9 to 410 mg l 1 Organic load in inlet d...

Страница 36: ... for homogeneous media Detection limits Nitrate CAS51D AAA1 0 003 mg l NO3 N CAS51D AAA2 0 013 mg l NO3 N SAC In relation to the standard potassium hydrogen phthalate KHP CAS51D AAC1 0 045 mg l COD CAS51D AAC2 0 3 mg l COD CAS51D AAC3 1 5 mg l COD Detection limits Nitrate CAS51D AAA1 0 01 mg l NO3 N CAS51D AAA2 0 043 mg l NO3 N SAC In relation to the standard potassium hydrogen phthalate KHP CAS51...

Страница 37: ...otection IP 68 1 m 3 3 ft water column over 60 days 1 mol l KCl 12 4 Process Process temperature 5 to 50 C 41 to 122 F Process pressure absolute 0 5 to 10 bar 7 to 145 psi absolute Minimum flow No minimum flow required 12 5 Mechanical construction Dimensions 6 Weight Approx 1 6 kg 3 53 lbs without cable Materials Sensor Stainless steel 1 4404 AISI 316 L Optical windows Quartz glass O rings EPDM Pr...

Страница 38: ...rift 36 M Maintenance 31 Maintenance intervals 31 Manufacturer s address 12 Materials 37 Maximum measured error 36 Measured values 35 Measuring principle 8 Measuring ranges 35 Mechanical construction 37 Minimum flow 37 Mounting location 13 N Nameplate 11 Nitrate 9 O Operating principle 8 Operation 26 Optical filters 31 Orientation 13 P Performance characteristics 36 Post connection check 25 Post i...

Страница 39: ......

Страница 40: ...www addresses endress com ...

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