Subscribe to Our Youtube Channel
Related Manuals for Endress+Hauser Oxymax W COS51D
Summary of Contents for Endress+Hauser Oxymax W COS51D
- Page 1 Operating Instructions Oxymax W COS51D Digital sensor for dissolved oxygen BA413C/07/en/10.08 71083533...
- Page 2 If faults occur during operation, use the checklist to locate the cause. Æ Æ Index → ä 32 You can find important terms and keywords on the individual sections here. Use the keyword index to find the information you need quickly and efficiently. Endress+Hauser...
-
Page 3: Table Of Contents
Oxymax W COS51D Table of contents Safety instructions ....4 Sensor checks ......26 Spare parts . -
Page 4: Safety Instructions
Safety instructions Oxymax W COS51D Safety instructions Designated use The oxygen sensor is suitable for continuous measurement of dissolved oxygen in water. Typical applications are: • Measuring, monitoring and regulating the oxygen content in activated sludge basins. • Monitoring the oxygen content in the sewage treatment plant outlet. -
Page 5: Sensor Version For Applications In Hazardous Locations 5
Safety instructions Sensor version for applications in hazardous locations • The certified oxygen sensor Oxymax W COS51D-G**0 may only be connected via the measuring cable CYK10-G**1 to approved intrinsically safe digital sensor circuits of the transmitter Liquiline M CM42-*G*. The electrical connection instruction must be followed. -
Page 6: Identification
2.3.1 ATEX II 1G Ex ia IIC T6 The inductive sensor-cable-plug-in system Memosens consisting of: • oxygen sensor Oxymax W COS51D-G**0 and • measuring cable CYK10-G**1 is suitable for the use in explosion-hazardous locations acc. to the type-examination certificate BVS 04 ATEX E 121 X . -
Page 7: Installation
Oxymax W COS51D 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 Instructions
3.3.1 Measuring system A complete measuring system comprises at least: • the digital oxygen sensor Oxymax W COS51D • a transmitter, e.g. Liquiline M CM42 • a special measuring cable, CYK10 • an assembly, e.g. immersion assembly CYA611 or retractable assembly COA451 Optional (see accessories): •... - Page 9 Oxymax W COS51D Installation a0006735 Fig. 3: Measuring system (example) Digital oxygen sensor Oxymax W COS51D Retractable assembly COA451 Liquiline M CM42 Measuring cable CYK10 3.3.2 Installing a measuring point Note! For immersed operation, install the individual modules away from the basin on a solid base. Only carry out the final installation at the intended installation location.
-
Page 10: Installation Examples
Installation Oxymax W COS51D Installation examples 3.4.1 Immersion operation Upright post and chain assembly For large basins, where sufficient installation distance is required from the basin edge (aeration basin, especially), it is advisable to use the upright post and chain assembly (→ å 4, → å 5). - Page 11 Oxymax W COS51D Installation a0004105-en Fig. 6: Universal suspension assembly holder CYH101 with immersion assembly CYY105 Star handle Pipe holder Fixing bracket Immersion assembly (= immersion tube) Basin rim mounting with immersion assembly For fixing to the sides of the basin or channel, we recommend the use of an basin rim mounting of the immersion assembly (→...
-
Page 12: Post-Installation Check
Installation Oxymax W COS51D mm/inch Cable route with strain relief and rain protection Mounting ring for ropes and chains with locking screw Lugs Ø15, 3 x 120 ° for anchoring Saltwater-resistant plastic float Pipe 40x1, stainless steel 1.4571 (AISI 316Ti) Ø200/7.87... -
Page 13: Wiring
Oxymax W COS51D 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. • Ensure that there is no voltage at the power cable before beginning the connection work. -
Page 14: Direct Connection To The Transmitter
Wiring Oxymax W COS51D Direct connection to the transmitter The sensor is electrically connected to the transmitter by means of the special measuring cable CYK10. a0003350 Fig. 13: Special measuring cable CYK10 Connection via junction box To extend the sensor cable, the connection has to take place using a junction box RM (-->... -
Page 15: Device Description
Oxymax W COS51D Device description Device description Sensor design a0004149 Fig. 16: Sensor head, cutaway drawing Membrane Electrolyte Anode Reference electrode Threaded connection for protection basket Sealing ring Threaded connection for membrane cap Membrane cap a0006935 Fig. 15: Sensor design Memosens Plug-in head Threaded connection NPT ¾"... -
Page 16: Measuring Principle
Device description Oxymax W COS51D Measuring principle 5.2.1 Polarization When the sensor is connected to the transmitter, a fixed external voltage is applied between the cathode and anode. The resulting polarization current is indicated on the display of the transmitter. -
Page 17: Calibration
Oxymax W COS51D Device description Calibration Calibration is a means of adapting the transmitter to the characteristic values of the sensor. As normally no zero calibration is required for the sensor, a single-point calibration is carried out in the presence of oxygen. - Page 18 Device description Oxymax W COS51D 5.3.3 Calibration in air Remove the sensor from the medium. Clean the outside of the sensor with a damp cloth. Then dry the sensor membrane e.g. by using a tissue. Then wait while the sensor adjusts to the temperature of the ambient air. This takes about 20 minutes.
- Page 19 Oxymax W COS51D Device description Altitude Altitude Altitude Altitude [m / ft] [m / ft] [m / ft] [m / ft] 250 / 820 0.971 800 / 2620 0.911 1300 / 4270 0.859 1800 / 5910 0.810 300 / 980 0.966...
-
Page 20: Commissioning
Commissioning Oxymax W COS51D Commissioning Function check Before first commissioning, check if: • the sensor is correctly installed • the electrical connection is correct. If using an assembly with automatic cleaning, check the correct connection of the cleaning agent (e.g. water or air). -
Page 21: Maintenance
Oxymax W COS51D Maintenance Maintenance Maintenance work must carried out at regular intervals. To ensure that it is carried out, we recommend you enter the maintenance dates into an operations logbook or in an operations calendar in advance. The maintenance cycle primarily depends on: •... -
Page 22: Replacing Wear And Tear Materials
Maintenance Oxymax W COS51D 7.1.2 Cleaning the cathode The cathode only needs to be cleaned when it is visibly soiled or there is a coating of silver on it. To clean it, proceed as follows: Unscrew the membrane cap from the membrane body. - Page 23 Oxymax W COS51D Maintenance To replace the electrolyte, proceed as follows: Remove the membrane cap. Replace the electrolyte and, if necessary, the membrane cap. Place the membrane cap back on the membrane body and screw the cap to the stop.
-
Page 24: Accessories
Accessories Oxymax W COS51D Accessories Connection accessories CYK10 Memosens data cable • For digital sensors with Memosens technology • Ordering according to product structure, see Technical Information (TI376C/07/en) CYK81 measuring cable • Non-terminated measuring cable for extension of sensor cables of e.g. Memosens sensors, CUS31/CUS41 •... -
Page 25: Measurement, Controlling And Sensor Cleaning
Oxymax W COS51D Accessories Measurement, controlling and sensor cleaning Liquiline M CM42 • Modular two-wire transmitter for Ex and non-Ex areas ® • Hart , PROFIBUS or FOUNDATION Fieldbus available • Ordering acc. to product structure, Technical Information TI381C/07/en Chemoclean •... -
Page 26: Trouble-Shooting
Trouble-shooting Oxymax W COS51D Trouble-shooting Trouble-shooting instructions If any of the following problems occur, test the measuring device as indicated. Problem Check Remedial action Mains voltage to the transmitter? Connect mains voltage. Sensor connected correctly? Set up correct connection. No display, no sensor Medium flow available? Create flow. -
Page 27: Spare Parts
Oxymax W COS51D Trouble-shooting Check Measure Setpoint Immerse the sensor in zero solution Display near to 0 mg/l (0% Sat) Zero point inspection Open the measuring chamber and dry the electrodes. How to use the zero solution: Fill a large beaker (1.5 - 2 l) with approx. 1 l of water. -
Page 28: Return
Trouble-shooting Oxymax W COS51D Return If the device requires repair, please send it cleaned to the sales centre responsible. Please use the original packaging, if possible. Please enclose the completed "Declaration of contamination" (copy the second last page of these Operating Instructions) with the packaging and the transportation documents. -
Page 29: Technical Data
Oxymax W COS51D Technical data Technical data 10.1 Input Measured variable Dissolved oxygen [mg/l, μg/l, ppm, ppb, % SAT or hPa] Measuring range 0.01 to 100 mg/l 0.00 to 1000 % SAT 0 to 2000 hPa 10.2 Performance characteristics Response time •... -
Page 30: Environment
Technical data Oxymax W COS51D 10.3 Environment Ambient temperature –5 to 50 °C (20 to 120 °F) range Storage temperature filled with electrolyte: –5 to 50 °C (20 to 120 °F) without electrolyte: –20 to 60 °C (0 to 140 °F) Ingress protection IP 68 (10 m (33 ft) water column at 25 °C (77 °F) during 45 days, 1 mol/l KCl) -
Page 31: Ec Declaration Of Conformity
Oxymax W COS51D EC Declaration of Conformity EC Declaration of Conformity Endress+Hauser... -
Page 32: Index
Oxymax W COS51D Index Angle of ........8 Check . - Page 33 Oxymax W COS51D Safety icons ........5 Scope of delivery .
- Page 34 Oxymax W COS51D Endress+Hauser...
- Page 35 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.
- Page 36 www.endress.com/worldwide BA413C/07/en/10.08 Printed in Germany / FM+SGML 6.0 / DT...
Need help?
Do you have a question about the Oxymax W COS51D and is the answer not in the manual?
Questions and answers