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MA300TS-0210

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DO Measuring Device / MA-300

Operation Manual

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Thank you for purchasing the IIJIMA DO Measuring Device, model MA-300.
This device can measure the dissolved oxygen (DO) in fluid using the optional residual oxygen meter PACK
MASTER, model RO-105S and a stirrer.

This manual describes how to operate the DO Measuring Device and the precautions that must be observed to
ensure proper and safe use. Always read this manual and fully understand the operation before starting use.
Keep this manual near the device for quick reference at any time.

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Содержание MA-300

Страница 1: ... DO in fluid using the optional residual oxygen meter PACK MASTER model RO 105S and a stirrer This manual describes how to operate the DO Measuring Device and the precautions that must be observed to ensure proper and safe use Always read this manual and fully understand the operation before starting use Keep this manual near the device for quick reference at any time ...

Страница 2: ...pan Calibration Method Saturated water calibration air calibration 8 2 Span calibration 9 1 Air calibration method 9 2 Saturated water calibration method 10 3 Zero calibration 11 4 Water temperature adjustment 12 5 Measurement 13 1 Measuring a sample Sample that does not contain fibers or solids 13 2 Repeated measurement 15 3 Measuring a sample containing fibers or solids 15 6 Maintenance 16 1 Cle...

Страница 3: ...urement will not be possible Exchange the 3 way check valve with the enclosed 3 way cock Refer to section 5 Measurement 3 Measuring a sample containing fibers or solids on page 15 of this manual The key components are made of acrylic materials Acrylic materials have a low resistance to solvents such as alcohol so do not measure such matters The acrylic material could be adversely affected such as ...

Страница 4: ...KOKUGO Co Ltd Part No 02 048 01 02 3 way check valve x 1 pc Manufacturer ISIS Co Ltd Part No VCV1251 1 set 4 3 way cock Part for measuring samples containing fibers or solids Model VXB1079 Manufacturer ISIS Co Ltd Material Polycarbonate polyethylene 1 5 Cleaning brush Part name Blood sedimentation brush Model 7 5611 01 Distributor AS ONE Corporation 1 6 Anhydrous sodium sulfite Guaranteed Reagent ...

Страница 5: ...3 MA300TS 0210 2 Accessories options Description 8 Stirrer model KK Product name Ultra Flat Digital Mini Magnetic Stirrer Distributor KENIS Ltd ...

Страница 6: ...Do not use a tool when connecting the parts Tightening with a tool could result in part damage Securely tighten the parts by hand without using tools Schematic drawing PACK MASTER and stirrer are sold separately The following photo shows the overall view including the optional PACK MASTER model RO 105S Stirrer Model KK and sample prepared by the user DO sensor connector DO sensor connector The mod...

Страница 7: ...MASTER Remove the pin shorting cap from the oxygen sensor and connect the connector part Carefully align the connector pins with the position of the hole Connect the connector and turn the coupling to fix it Step 2 Connect the tubing between the syringe and housing Step 3 Install the stirrer Place the magnetic stir bar in the housing Place the housing over the stirrer and turn the stirrer power ON...

Страница 8: ...tting Step 1 Confirm that the oxygen sensor WA BRM5 is connected Step 2 Turn the PACK MASTER power ON and press on the Measurement Standby screen The mode switches to the DO MEASURE mode When O2 MEASURE is displayed When DO MEASURE is displayed The display alternates in the following order each time is pressed DO MEASURE cannot be selected unless the oxygen sensor WA BRM5 is connected to the PACK ...

Страница 9: ...3 Press The SETTING MENU screen opens and O2 DISP SET is selected flashes Step 4 Press three times The cursor moves and DO DISP SET is selected flashes Step 5 Press The DO DISP SET screen opens and the selected setting flashes The factory default setting is DO mg L Step 6 Each time is pressed the display changes as shown below When DO mg L is displayed When SATUR R is displayed When set to DO mg L...

Страница 10: ...en opens and O2 DISP SET is selected flashes Step 4 Press four times The cursor moves and DO CAL SET is selected flashes Step 5 Press The DO CAL SET screen opens and the selected setting flashes The factory default setting is AIR Step 6 Each time is pressed the display changes between AIR and SATUR WATER When AIR is displayed When SATUR WATER is displayed Display symbol Name AIR Air calibration SA...

Страница 11: ...stable such as before turning on the air conditioning Step 2 Change the instrument setting to Set to AIR Perform only the first time Refer to section 3 Setting the Span Calibration Method Saturated water calibration air calibration on page 8 of this manual Step 3 When the DO MEASURE screen is displayed press The MENU screen opens and CAL is selected flashes Step 4 Press The DO CAL screen opens Ste...

Страница 12: ... Allow five to ten minutes for the temperature to stabilize If the temperature varies it can take approximately one minute per degree Celsius to stabilize Step 5 When the DO MEASURE screen is displayed press The MENU screen opens and CAL is selected flashes Step 6 Press The DO CAL screen opens Step 7 When the indicated value stabilizes hold down for 1 second or longer The stability is decided and ...

Страница 13: ...ected flashes Step 4 Press The DO CAL screen opens Step 5 When the indicated value stabilizes hold down for 1 second or longer The stability is decided and after approx 10 seconds CAL complete appears to indicate that the calibration is complete The DO MEASURE screen opens when the automatic calibration is completed The calibration value is saved even if the PACK MASTER power is turned OFF the bat...

Страница 14: ...O2 Measurement Standby screen or DO MEASURE screen The MENU screen opens and CAL is selected flashes Step 3 Press twice The cursor moves and FUNC is selected flashes Step 4 Press The FUNC MENU screen opens and CLOG CHECK is selected flashes Step 5 Press four times The cursor moves and WTR TEMPADJ is selected flashes Step 6 Press The DO C1 P ADJUST screen opens Step 7 Change the water temperature t...

Страница 15: ...rs or solids refer to section 5 Measurement 3 Measuring a sample containing fibers or solids on page 15 of this manual 1 Measuring a sample Sample that does not contain fibers or solids Step 1 Carefully mount the oxygen sensor WA BRM5 on the housing unit Do not insert the oxygen sensor forcefully Forcefully inserting the sensor can apply a load on the membrane and affect the measurement value If t...

Страница 16: ...d or canceled If the stirrer is rotated at high speed the magnetic stir bar may pop off with force and damage the oxygen sensor Gradually increase the stirrer speed If the stirrer speed is too slow the flow will be insufficient and the measurement value may be low Adjust the speed to the maximum speed that does not cause the magnetic stir bar to pop off The recommended speed for the stirrer Model ...

Страница 17: ... atmosphere will cause the measurement value to be higher 3 Measuring a sample containing fibers or solids Step 1 Exchange the 3 way check valve with the 3 way cock 3 way check valve 3 way cock Step 2 Take the measurement while switching the lever position for suctioning and discharge Refer to the syringe operation explained in Step 3 of section 5 Measurement 1 Measuring a sample on page 14 of thi...

Страница 18: ...s a beaker with tap water and lightly rinse the oxygen sensor in the container Always clean the oxygen sensor with tap water filled in a container If cleaned with tap water directly from the faucet the pressure of the water could break the membrane on the sensor surface Step 2 Wipe off the moisture lightly with tissue paper and store the sensor in the atmosphere When removing the oxygen sensor fro...

Страница 19: ...he membrane on the top of the oxygen sensor contaminated Clean the oxygen sensor and remove the contaminants Refer to section 6 Maintenance 1 Cleaning after measurement on page 16 If the contaminants cannot be removed replace the membrane and electrolytic solution with new ones After replacing allow the sensor to stabilize for several hours to 12 hours or more and then calibrate it Was zero calibr...

Страница 20: ... have reached its life Order a new oxygen sensor and replace the old one Contaminants have solidified in the housing Fill the housing with lukewarm water and allow it to soak Then wipe off the contaminants with a soft sponge etc If the solution contains oils and fats soak the sensor in a neutral detergent and wipe off the contaminants with a soft sponge etc Do not use alcohol when cleaning Do not ...

Страница 21: ...been replaced the membrane tension is not stable so allow the membrane to settle for several hours to 12 hours Calibrate after this stabilizing time Is the oxygen sensor s membrane surface damaged or wrinkled etc Refer to the Maintenance Guide enclosed with the oxygen sensor and replace the membrane and electrolytic solution with new ones After replacing allow the parts to stabilize for several ho...

Страница 22: ...m which you purchased the product if you have any questions or inquiries regarding handling repairs or inspections 1 1 Ishida Toyooka cho Gamagori shi Aichi 443 0011 JAPAN Telephone 81 533 67 2827 Facsimile 81 533 69 6814 https www iijima e co jp ...

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