Related Manuals for Endress+Hauser Viomax CAS51D
Summary of Contents for Endress+Hauser Viomax CAS51D
- Page 1 Operating Instructions Viomax CAS51D Photometric sensor for nitrate measurement BA459C/07/EN/05.10 71114848...
- Page 2 Endress+Hauser...
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Page 3: Table Of Contents
Viomax CAS51D Table of contents Safety instructions ....4 Technical Data....25 Designated use . -
Page 4: Safety Instructions
Safety instructions Viomax CAS51D Safety instructions Designated use CAS51D is a sensor designed to measure the contents of nitrate in liquid media. The sensor is particularly suited for use in the following applications: • Monitoring the nitrate contents in the outlet of wastewater treatment plants •... -
Page 5: Notes On Safety Icons And Symbols
Viomax CAS51D Safety instructions Notes on safety icons and symbols Warning! This symbol alerts you to hazards that can cause serious damage to the instrument or to persons if ignored. Caution! " This symbol alerts you to possible faults which could arise from incorrect operation. They could cause damage to the instrument if ignored. -
Page 6: Identification
Identification Viomax CAS51D Identification Nameplate Compare the order code indicated on the nameplate to the product structure and your order. The nameplate contains the following information: • Manufacturer data • Order code (device version) • Extended order code • Serial number... -
Page 7: Installation
Viomax CAS51D Installation Installation Incoming acceptance, transport, storage • Make sure the packaging is undamaged! Inform the supplier about any damage to the packaging. Keep the damaged packaging until the matter has been settled. • Make sure the contents are undamaged! Inform the supplier about damage to the contents. - Page 8 Installation Viomax CAS51D 3.2.2 Mounting location • Select a mounting location that can also be easily accessed later on. • Make sure upright posts and assemblies are securely fastened and free from vibrations. • Select a mounting location where the nitrate concentration is representative of the application.
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Page 9: Installation Instructions
Viomax CAS51D Installation Installation instructions 3.3.1 Measuring system A complete measuring system comprises: • Nitrate sensor Viomax CAS51D • Transmitter Liquiline • Assembly Flexdip CYA112 and holder system Flexdip CYH112 Holder system Flexdip CYH112 Transmitter Liquiline Weather protection roof Assembly Flexdip CYA112... -
Page 10: Installation Examples
Fixed installation with wastewater assembly a0013347 a0013215 Fig. 5: 90° installation secured on railing Fig. 6: 90° installation with upright post Viomax CAS51D nitrate sensor Flexdip CYH112 holder Flexdip CYA112 wastewater assembly Liquiline transmitter Flexdip CYH112 holder Weather protection cover Railing... - Page 11 Flexdip CYA112 wastewater assembly Railing Viomax CAS51D nitrate sensor 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.
- Page 12 8 mm adapter (only for 6 mm gland) 6 mm or 6.35 mm (¼") gland 3.4.2 Bypass operation Flow assembly for clear water a0013352 Fig. 10: Sensor with flow assembly Sensor holder Viomax CAS51D nitrate sensor Medium inlet Flow assembly Medium outlet Liquiline transmitter Endress+Hauser...
- Page 13 Fig. 12: Flow assembly in the bypass Main pipe Medium return Medium outlet Viomax CAS51D nitrate sensor Manual or solenoid valves Flow assembly Medium inlet Medium sampling Connect the flow assembly as illustrated in Abb. 12 or Abb. 13. This fills the assembly from below and ensures the assembly is self-venting.
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Page 14: Post-Installation Check
Installation Viomax CAS51D a0013434 Fig. 13: Flow assembly with open outlet Basin Filter unit Viomax CAS51D nitrate sensor Flow assembly Medium outlet Medium inlet Pump Open outlet Post-installation check • Sensor and cable undamaged? • Cap undamaged? • Compliance with permissible sensor installation position? •... -
Page 15: Wiring
Viomax CAS51D Wiring Wiring Warning! • The electrical connection must only be carried out by a certified electrician. • Technical personnel must have read and understood the instructions in this manual and must adhere to them. • Prior to beginning any wiring work, make sure voltage is not applied to any of the cables. -
Page 16: Device Description
Device description Viomax CAS51D Device description Sensor design The sensor is designed for the continuous in-situ measurement of process values. One version of the sensor measures the amount of nitrate in the medium. The sensor is designed as a 40 mm sensor that can be operated directly and completely in the process without the need for further sampling (in situ). - Page 17 Viomax CAS51D Device description Within the measurement section - i.e. the open path through the cuvette - parts of the light interact with the medium. While the medium in the cuvette (water and particles) attenuates the light across the entire spectrum, another factor comes into play in the measuring wavelength range, as nitrate in the medium takes some of the energy from the light and causes additional attenuation of the light beam.
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Page 18: Calibration
Device description Viomax CAS51D Calibration Calibration helps to adjust the precalibrated sensor more precisely to the given situation. Types of calibration: • The sensor measures the concentration of nitrate in a medium. The actual value is determined by external wet-chemical analysis (e.g. photometric measurement with a reaction indicated by a change in color). - Page 19 Viomax CAS51D Device description 5.3.3 Calibration in the process Calibration is performed in the process by comparing the values to an external standard method. A sample of the process medium is taken and analyzed in the laboratory for nitrate. Colorimetric measurement with a cuvette test is common practice and is a standard method in accordance with DIN 38405 Part 9.
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Page 20: Cyclic Cleaning
Device description Viomax CAS51D 5.3.4 Calibration in the laboratory Calibration is performed in the laboratory using ready-prepared parent solutions with different concentrations. Note! Please note that drinking water can contain larger concentrations of nitrate and is not suitable as a blank sample. -
Page 21: Maintenance
You must rinse the sensor thoroughly with water after cleaning. Maintenance of the optical filter and strobe lamp These maintenance tasks can only be performed by Endress+Hauser Service. Please contact your local sales center. When returning the device, make sure the delivery contains the following: •... -
Page 22: Accessories
Accessories Viomax CAS51D Accessories Assemblies Wastewater assembly Flexdip CYA112 • Modular assembly system for sensors in open basins, channels and tanks • Versions in stainless steel or PVC • Ordering acc. to product structure (Technical Information TI432C/07/en) Flow assembly for CAS51D •... -
Page 23: Transmitter
Viomax CAS51D Accessories Transmitter Liquiline CM44x • Multiple-channel transmitter for the connection of digital sensors with Memosens technology • Power supply: 85 to 265 V AC, 18 to 36 V DC or 20 to 28 V AC (not CM448) • Universally upgradeable •... -
Page 24: Troubleshooting
Troubleshooting Viomax CAS51D Troubleshooting Troubleshooting instructions You must take the entire measuring point into account when troubleshooting: • Transmitter • Electrical connections and cables • Assembly • Sensor The possible causes of error indicated in the table below primarily refer to the sensor. -
Page 25: Technical Data
Viomax CAS51D Technical Data Technical Data Input Measured variable -N (mg/l), NO (mg/l) Measuring ranges CAS51D-**A2 (2 mm gap width) 0.1 to 50 mg/l NO or 0.4 to 200 mg/l NO CAS51D-**A1 (8 mm gap width) 0.01 to 20 mg/l NO or 0.04 to 80 mg/l NO... -
Page 26: Index
Viomax CAS51D Index Accessories........22 Post-connection check . - Page 27 Erklärung zur Kontamination und Reinigung Please reference the Return Authorization Number (RA#), obtained from Endress+Hauser, on all paperwork and mark the RA# clearly on the outside of the box. If this procedure is not followed, it may result in the refusal of the package at our facility.
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