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Instruction

Manual

Model DO71

Optical Dissolved Oxygen Sensor

IM12J06J01-00EN-P

3

rd

edition

1
2
3
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Summary of Contents for DO71

Page 1: ...Instruction Manual Model DO71 Optical Dissolved Oxygen Sensor IM12J06J01 00EN P 3rd edition...

Page 2: ...ereafter simply referred to as YOKOGAWA when replacing parts or consumables Modification of the product is strictly prohibited The following safety symbols are used on the product as well as in this m...

Page 3: ...se but rather to describe the functional details of the product No part of the Instruction manuals may be transferred or reproduced with out prior written consent from YOKOGAWA YOKOGAWA reserves the r...

Page 4: ...Installation in sensor holder 10 3 2 Preparing the sensor for use 10 3 3 Mounting the sensor 10 3 5 Installation procedure for the sensor to PB350G PB360G 11 3 6 Installation procedure for the sensor...

Page 5: ...a products and parts are guar anteed free from defects in workmanship and material under normal use and ser vice for a period of typically 12 months from the date of shipment from the man ufacturer In...

Page 6: ...uction Year code Year Year code Year Year code 2014 P 2026 3 2015 R 2027 4 2016 S 2028 5 2017 T 2029 6 2018 U 2030 7 2019 V 2031 8 2020 W 2032 9 2021 X 2033 A 2022 Y 2034 B 2023 Z 2035 C 2024 1 2036 D...

Page 7: ...lbs 0 095 lbs 0 015 lbs feet Sensor mounting system Pressfit with optional adapter Cable Permanent shielded cable stripped wire end 5 mm for terminal connection 2 4 Performance Measuring range 0 to 22...

Page 8: ...97 0 65 g lbs DO71 10m 32 80 ft 232 0 51 g lbs 391 0 86 g lbs DO71 20m 65 61 ft 420 0 92 g lbs 615 1 35 g lbs OEC CA CB CC 6 0 01 g lbs 147 0 32 g lbs 2 6 Environmental conditions Storage temperature...

Page 9: ...010 1 2010 A1 2019 NEN EN IEC 61010 2 030 2010 C1 2011 RoHS Directive 2015 863 EU Commission Delegated Directive EU 2015 863 amending Annex II as regards the list of restricted substances and by apply...

Page 10: ...oating ball holder Fig 3 or PB360G vertical floating ball holder Fig 4 3 2 Preparing the sensor for use Make sure that the Oxygen Exchange Cap OEC is screwed tightly to the probe body and did not work...

Page 11: ...rough the cable and put O RING on GLAND to touch the flange of ADAPTER The installation is correct if the distance between the head of the sensor and the end face of ADAPT ER is less than 2mm By posit...

Page 12: ...and the end face of ADAPTER is less than 87mm By positioning the sensor the measure ment point can be the same even after the reinstallation with maintenance works Also the installation position gets...

Page 13: ...01 00EN P Figure 11 DO71 installation in Yokogawa FF20 fitting6 using the adapter K1531JA sensor adapter set and adapter to fitting K1520JN K1500DV or K1520JP Adapter set K1531JA Adapter K1520JN K1500...

Page 14: ...allation in Yokogawa FF40 fitting6 using the adapter K1531JA sensor adapter set to fit in PG13 5 fitting adapter K1523JA Noryl K1523JC SS Adapter set K1531JA PG13 5 adapter K1523JA Noryl K1523JC SS 14...

Page 15: ...le lengths as described in table 3 Sensor and O ring dimensions are described in Fig 13 Table 3 Sensor model code and cable length IM12J06J01 00EN P 15 Model code L mm L ft DO71 W 106 AA 03 N Y 3000 1...

Page 16: ...DO71 sensor cable connection to FLXA402 refer to the Instruc tion manual for FLXA402 4 Wire Converter IM12A01F01 02EN Fig 14 D6 module terminal assignment for DO71 dissolved oxygen sensor Wire Pin no...

Page 17: ...nect the DO71 to the protective ground at the installation site Assign the device housing and cable shield to protective ground Especially the length of the cable can influence the ground connection q...

Page 18: ...ately one minute to dissolve Na2SO3 and to ensure that the water is oxygen free To prepare oxy gen free water you also can use sodium dithionite Na2S2O4 Fill the calibration solution cal 0 in the vess...

Page 19: ...IM12J06J01 00EN P 19 Fig 17 Example of Final inspection protocol...

Page 20: ...he dirt Wash the oxygen exchange cap with clean water Before every calibration check that the oxygen exchange cap is not loose If it is loose retighten it Cleaning procedure 2 H2O2 acidic agents HCL H...

Page 21: ...DO71 Optical Dissolved Oxygen sensor Range W Wide range 0 22 5 mg L Insert length 106 106 mm Type AA General purpose Connection type 3 Permanent cable 3 meters 5 Permanent cable 5 meters 10 Permanent...

Page 22: ...6 PCS K1500GR O RINGS SILICON 10 77x2 62 8PCS K1524AA O RING SIL 10 77x2 62 SLIDE RING 1PC K9679WJ Gasket lifetime parts for K9679WA WB and WC K1531JA Adapters Adapter for mounting in Yokogawa fittin...

Page 23: ...on Oxygen Exchange Cap membrane Compatibility Aqueous solutions ethanol methanol No cross sensitivity to pH 1 14 CO2 H2S SO2 ionic species Cross sensitivity to Chlorine gas Organic solvents such as p...

Page 24: ...Subject to change without notice Copyright Printed in The Netherlands 03 2211 IM12J06J01 00EN P...

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