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O2X 

 

 

DUO

 

 

 

EElk 

 

If a new electrode is not to be installed, then the yellow plastic cap shall be 

mounted to protect the electrode connection plug and the flushing nozzles on the 

sensor. 

Installing a new electrode/cell: 

 

Loosen and remove the SS flushing head. 

 

Remove the cable connector from the electrode/cell and clean the connector. 

 

Use a new o-ring, 31.6x2.4 mm EPDM, on the electrode when exchanging the 

electrode. 

 

Plug the electrode/cell cable into the connector on the top of the electrode. 

 

Install the new electrode/cell into the SS flushing head. 

Don’t touch the cap 

lens on  the electrode/cell when installing. 

 

For the optical cell, the grooves in the electrode must be adapted to the holes for 

the flush pipes. 

 

Tighten the SS flushing head and mount the protection plate, if needed. See 

below the  instructions on mounting the protection plate. 

 

A new air-calibration must be performed whenever the electrode/cell is changed. 

For the optical cell also a 0-calibration shall be done. 

 

The date when the electrode/cell is changed shall be entered in the calibration 

menu. 

Mounting the protection plate 

First: remove the small o-rings mounted in the groove at the top of the three flushing 

nozzles. Bend the plate slightly and press it down between the flushing nozzles and into 

the grooves. Confirm that the plate fits into the notches on the flushing nozzles. Do not 

remove a flushing nozzle in order to mount the protection plate. The nozzles are 

fastened with a special locking glue. 

   

Wrench 

 

   

Electrode 

 

Flushing head 

Содержание O2X Duo

Страница 1: ...2018 11 20 C14D5EN19 O2X DUO Dissolved Oxygen Sensor ...

Страница 2: ...Mounting the protection plate 7 8 Cleaning the Sensor 8 Cleaning the Flushing Nozzle 9 Mounting plate for solenoid valves 9 9 Sensor display 9 10 Menu for O2X DUO Sensor 10 Settings 10 Calibrate 10 Cleaning 11 Scale Alarm 11 System 11 11 Calibration 12 Zero Calibration 12 Air calibrating a sensor 13 Air pressure conversion 14 12 Scaling 14 13 Technical description 15 Certificate of conformity 15 1...

Страница 3: ...e and Silver anode A membrane covers the gold silver electrodes and blocks access of solids to the electrodes Only dissolved gases such as oxygen can pass thru the membrane hence the reduction current responds to the oxygen concentration Active components included in the electrode are treated to maximize their life span Inside the electrode there is also a temperature sensor mounted in a way that ...

Страница 4: ...rodes Optical CellsMembranes 10305470 Sensor Holder 11205541 Telescopic Rod 3 sections Fiberglass 4 Meter 13 1 20205652 Stainless steel Handrail Mounting bracket X including rodholder 11205539 Adjustable SS slide rail and sensor holder 66 mm 11205600 Solenoid valve for flushing 230 VAC Inlet hose 16mm 5 8 to sensor 8mm 1 4 11705516A Solenoid valve for flushing 115 VAC Inlet hose 16mm 5 8 to sensor...

Страница 5: ...vertical Installation Tips Adjust the rod so that the sensor is at least 30 cm 12 below the liquidsurface or the lowest water level in decant applications SBR s to prevent the sensor from coming out of the liquid In an aeration tank ensure that the sensor is not directly above a diffuser head To obtain the most representative dissolved oxygen level the sensor should be installed on the backside of...

Страница 6: ...nd the sensor 7 Changing or installing a new electrode cell The electrode cell can be both assembled and disassembled without special tools Do not clamp the SS sensor housing or the cable when installing or removing the SS flushing head Please note The new optical cell can be mounted on all sensors with serial number higher than 7 25 078 bought later than 1 sept 2014 For older models please contac...

Страница 7: ...electrode must be adapted to the holes for the flush pipes Tighten the SS flushing head and mount the protection plate if needed See below the instructions on mounting the protection plate A new air calibration must be performed whenever the electrode cell is changed For the optical cell also a 0 calibration shall be done The date when the electrode cell is changed shall be entered in thecalibrati...

Страница 8: ...o be cleaned as a slave along with another sensor then these parameters are set for the sensor being the master Specify the freeze time in seconds after the flush forrecover If the sensor shall be cleaned as master specify the relay to be used according to the wiring inside the control box For example if the solenoid is wired torelay 1 select 1 for flushing If the sensor is to be cleaned as a slav...

Страница 9: ...alves for the built in flushing nozzles Cerlic offers a predrilled Aluminum handrail mounting plate The Mounting plate is fixed to the rail using two u bolts Mounting plate P N 10305533 for one or two solenoids outside US version P N 11705516A 11705516 B US Version and a connection box P N 11505748 9 Sensor display By simultaneously pressing and ENTER you change between BB1 BB2 main menu and the s...

Страница 10: ...ional information not a precision measurement Temp0 Temperature scaling value that will give max output on second channel Default is 100 C but can be adjusted Calibrate Airpres mB Specify within 10 mBar Go to weather station on internet to obtain for your zip code or location Calibrate No Zero or Air Select what calibration to do Temp info Shows actual temperature in the electrode Test info Shows ...

Страница 11: ...o test the Flush cycle Scale Alarm Max 0 99 9 mg l measured value equal to 20 mA output signal Min 0 99 9 mg l measured value equal to 4 mA output signal Hi Alarm 0 99 9 mg l the value zero inactivates the alarm Low Alarm 0 99 9 mg l the value zero inactivates the alarm Alarm Relay 1 2 or 1 and 2 Check to make sure that the relay is not being used for cleaning System Type Type of sensor read only ...

Страница 12: ...ug in the cell Zero calibrating a sensor Select the O2X DOU sensor in the Main Menu by using the or buttons Press ENTER for approximately five seconds to enter the SensorMenu Use the arrows to select the Calibration sub menu and pressENTER Select Calibrate Press ENTER Use the arrows to select Zero three choices can be done Air No Zero Press ENTER Wait for the zero calibration to finish usually tak...

Страница 13: ... Select the Calibration press ENTER Enter the current air pressure in mBar It is sufficient to specify the pressure within 10 mBar see table below for conversion from inHg to mBar Select Calibrate Press ENTER Use the arrows to select Air three choices can be made Air No Zero Press ENTER Wait for the sensor to be calibrated A successful calibration will take anywhere between 3 to 15 minutes for the...

Страница 14: ...or the 4 20mA output signal In addition this menu allows the user to set high and low alarms values that can be used to notify when the level has reached criticalpoints Max sets the 20 mA point output Min sets the 4 mA point output may be a negative valuefor special applications Hi Alarm sets the High Alarm set point the value zero inactivates the alarm Low Alarm sets the Low Alarm set point the v...

Страница 15: ...m 33 ft Flushing hose material PE LD Enclosure IP68 NEMA 4X Certificate of conformity The O2X DUO sensors along with their central unit BB1 BB2 Control Box are in conformance with the following EC Directive s when installed in accordance with the installation instructions contained in the product documentation 2014 35 EU Low Voltage Directive LVD 2014 30 EU Electromagnetic Compatibility EMC Direct...

Страница 16: ...ssion standard for industrial environments 14 Dimensions Appendix 1 Assembly of handrail mounting kit Mount the Flexible Mounting Bracket on handrail diameter of 1 2 32 50 mm Ø or square 1 1 8 1 5 8 28 42 mm The bent lip on the mounting plate shall be on top and faced toward the liquid or tank Adjust the Mounting Bracket to the correct angle and tighten the SS nuts The bracket shall be fixed to th...

Страница 17: ...ervice the instrument wind up a couple of meters of the cable and fasten it on the rail with attached cable tie Hint on pick up let the rod hang freely and lift it straight up before you swing it over the rail Pull the M12 cable and flush hose through the sensor holder and rod Connect the telescoping fiberglass rod to the sensor with the two piece black plastic adapter The adapter halves should be...

Страница 18: ...Appendix 2 Assembly of adjustable slide rail ...

Страница 19: ... time for five seconds Select System and press ENTER Version Serial Box temp Box heat Leave the BB1 BB2 menu by pressing and ENTER at the same time Use or to select the sensor in the main display Go to the sensor menu it is accessed by pressing ENTER for five seconds Select System and press ENTER Type Serial SoftW Temp Select Info then press ENTER to go to the info menu MS0 MS1 Cons 1 Ch1 Ch2 Con ...

Страница 20: ...b menu of the sensor menu the following parameters can be set I time No of decimals Analog Second In the Cleaning sub menu of the sensor menu the following parameters can be set Cleaner Cleaning interval Cleaning length Cleaning freeze Cleaning relay In the Scale Alarm sub menu of the sensor menu the following parameters can be set Max Min High Alarm Low Alarm Alarm Relay Leave the BB2 menu by pre...

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