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Quality made by
Hauser

ISO 9001

BA 286C/07/en/07.01
Nr. 51506699

OxyMax W COS 71

Sensor for Measuring
Dissolved Oxygen

Operating Instructions

Содержание OxyMax W COS 71

Страница 1: ...Quality made by Endress Hauser ISO 9001 BA 286C 07 en 07 01 Nr 51506699 OxyMax W COS 71 Sensor for Measuring Dissolved Oxygen Operating Instructions...

Страница 2: ......

Страница 3: ...ign and functional description 9 3 5 Post installation check 11 4 Wiring 12 4 1 Direct connection to the transmitter 12 4 2 Connection via the junction box VS 12 4 3 Post connection check 13 5 Commiss...

Страница 4: ...efore not permitted Make sure you strictly adhere to the warnings and notes in these Operating Instructions The manufacturer is not liable for damage caused by improper use or use other than that for...

Страница 5: ...Operating instructions for the assembly and its materials Local prevailing standards and regulations 1 5 Return If the device requires repair please send the sensor clean see Seite 17 to the appropria...

Страница 6: ...OS 71 with transport protection cap for membrane protection Accessories set COY 31 S Z with the following contents 1 spare replacement cartridge COY 31 S WP 10 plastic ampoules containing electrolyte...

Страница 7: ...transmitter Liquisys M COM 223 253 WX WS Optional Flow assembly FlowFit W COA 260 Junction box VS Fig 3 1 Complete measuring device for COS 71 with Liquisys M COM 223 253 WX WS 1 Junction box VS only...

Страница 8: ...3 2 Installation conditions 3 2 1 Installation dimensions Fig 3 2 Dimensions COS 71 fixed cable version Fig 3 3 COS 71 with TOP 68 plug in head and TOP 68 plug in cable 220 40 186 C07 COS31xxx 06 05...

Страница 9: ...lling and connecting the oxygen sensor Caution Screw the sensor into the assembly so that the cable is not twisted Avoid exerting excessive tensile force on the cable e g from jerky pulling Select the...

Страница 10: ...m by keeping up the pressure on the sensor In the case of rapid pressure loss e g during maintenance work on the pipeline close all the valves manual mode manually actuated valves automatic mode solen...

Страница 11: ...it from the medium The membrane which is in contact with the medium is seated tightly in the membrane cap pretensioned in the factory The gold cathode 5 the counter elec trode Ag AgBr 8 the reference...

Страница 12: ...SAT or as an oxygen partial pressure in hPa Potentiostatic three electrode system Unlike the two electrode system the anode of the three electrode system is splitted in a current carrying counter elec...

Страница 13: ...sensor carry out the following checks Checks Remarks Membrane OK visual inspection Replace membrane if there is a leak Compliance with permissible sensor installation position see Chapter 3 3 Sensor...

Страница 14: ...VS The extension to a field instrument COM 253 WX WS is done by the measuring cable OMK with SXP plug in head The connection to a panel mounting instrument COM 223 WX WS is done at the terminal block...

Страница 15: ...inspection Electrical connection Remarks Does the supply voltage of the transmitter match the specifications on the nameplate 230 V 115 V 100 V AC 24 V AC DC Are the installed cables strain relieved a...

Страница 16: ...vapour Therefore install the sensor as close to the water surface as possible When calibrating the sensor membrane make sure the membrane remains dry Therefore avoid any direct contact with the water...

Страница 17: ...sing a tissue If the sensor is removed from a closed pressure system with a process pressure great er than atmospheric pressure open the membrane cap to equilibrate the pressure and clean the cap if n...

Страница 18: ...0 99 21 8 90 31 7 42 1 14 23 12 10 75 22 8 73 32 7 30 2 13 83 13 10 51 23 8 57 33 7 18 3 13 45 14 10 28 24 8 41 34 7 06 4 13 09 15 10 06 25 8 25 35 6 94 5 12 75 16 9 85 26 8 11 36 6 83 6 12 42 17 9 64...

Страница 19: ...measurement can be corrupted by sensor fouling or malfunction e g Coatings on the sensor membrane cause longer response times and a reduced slope Soiling or poisoning of the electrolyte causes longer...

Страница 20: ...in for recoating In this case contact your E H sales office 6 2 2 Replacing the sealing ring Replacing the sealing ring see Fig 3 8 on page 9 Pos 2 is only necessary when it is visibly damaged For rep...

Страница 21: ...rane cap 5 If necessary clean the gold cathode page 18 or replace the sealing ring if it is dam aged page 18 6 Rinse the electrode holder with drinking water 7 Make sure that there are no dirt particl...

Страница 22: ...are parts kit Accessory kit COY 31 S Z content COY 3 F COY 31S WP COY 31 OR and COY 31 PF Order No 51506785 7 4 Spare parts Electrolyte filling COY 3 F 10 plastic ampoules transparent Order No 5005334...

Страница 23: ...electrode coating dis solved is it silver instead of brown Gold cathode silver plated Wait until polarisation time ends Recalibrate Check with another sensor if necessary send sensor in for repair Cal...

Страница 24: ...nected test the polarisation voltage with Liquisys M COM 223 253 WX WS 8 5 V between terminals 87 and 0 8 5 V between terminals 88 and 0 Slope inspection Place the sensor in the air and dry the membra...

Страница 25: ...Polarisation time 60 minutes Minimum flow speed typ 2 5 cm s for 95 meas val display 200 ml min with flow assembly COA 260 Drift with continuous polarisation 1 month Zero current zero current free Se...

Страница 26: ...tallation 5 Installation conditions 6 Installation dimensions 6 Installation location and position 7 Installing a measuring point 7 J Junction box VS 5 12 13 20 M Maintenance 17 Measuring device 5 23...

Страница 27: ...f health o biological hazardous o inflammable o safe Please mark the appropriate warning hints 5HDVRQ IRU UHWXUQ BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBB...

Страница 28: ...Hauser Argentina S A Buenos Aires Tel 01 145227970 Fax 01 145227909 Bolivia Tritec S R L Cochabamba Tel 042 56993 Fax 042 50981 Brazil Samson Endress Hauser Ltda Sao Paulo Tel 011 50313455 Fax 011 50...

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