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Vzor MAPK-303T, Operation Manual

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2.6.6 Setting of initial analyzer parameters  
 
 
 
A  provision  is  made  in  the  meter  for  setting  the  analyzer  initial  parameters 

including shift (zero shift) and slope which corresponds to an "average" probe. This 
makes it possible to start calibration with preset initial conditions.  

The mode is to be used if analyzer calibration performance is doubtful.  
Initial parameters are to be set up according to 1.5.8. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for MAPK-303T

Page 1: ...MAPK 303T DISSOLVED OXYGEN METER Operation Manual Nizhny Novgorod 2010 АЯ 74 ...

Page 2: ...product quality improvement If you have any trouble with the instrument performance please contact us in writing or by phone Postal address 603106 Russia Nizhny Novgorod PB 253 Telephone 7 831 229 65 67 412 29 40 E mail market vzor nnov ru Website www vzornn com ...

Page 3: ...asuring instruments tools and appliances 27 2 INTENDED USE 28 2 1 Operating limitations 28 2 2 Safety Precautions 28 2 3 Analyzer pre staring procedures 28 2 4 Measurement procedure 41 2 5 Inspection of condition 44 2 6 Troubleshooting 44 3 MAINTENANCE 51 4 DELIVERY SET 51 ATTACHMENT A SOLUBILITY OF 100 HUMIDITY AIR OXYGEN IN DISTILLED WATER DEPENDING ON TEMPERATURE 52 ...

Page 4: ...ated temperature compensation with DOP 303Т flow submersible probe with automatic calibration when the probe is located in oxygen environment air at a temperature plus 15 to plus 35 С with automatic atmospheric pressure correction on calibration 1 2 Basic characteristics 1 2 1 By resistance to climatic load the analyzer version belongs to B4 group according to GOST 12997 84 1 2 2 By resistance to ...

Page 5: ...n on 300 1 2 10 The analyzer retains in spec characteristics after dry cell replacement and calibration 1 2 11 Dimensions and weight of analyzer components are shown in Table 1 1 Table 1 1 Identification of components Maximum dimensions mm Max weight kg CU 303 convertor unit ВР47 01 000 65 130 28 0 12 DOP 303Т oxygen probe ВР47 02 000 w o cable 16 115 0 12 1 2 12 Conditions of transportation in sh...

Page 6: ...rom normal temperature 20 0 0 2 С within the operating temperature range from plus 1 to plus 50 С ppm 0 002 0 002C 1 3 5 The range of analyzer allowable absolute accuracy when measuring DOC at analyzable fluid temperature coincident with calibration temperature lying within the temperature range from plus 15 to plus 35 С and at ambient air temperature of 20 5 С ppm 0 003 0 04C 1 3 6 Measuring rang...

Page 7: ...m or ppb depending on the DOC value are shown on a digital liquid crystal display hereafter display The least significant digit on measuring temperature is 0 1 С The least significant digit on measuring DOC is 0 1 ppb The analyzer makes it possible to enter the measurement results in a scratchpad The analyzer is calibrated against atmospheric air of 100 humidity in view of atmospheric pressure at ...

Page 8: ...ture and automatically compensate for temperature dependence of the signal from the oxygen probe the analyzer is furnished with a temperature sensor platinum thermal resistor A signal from the temperature sensor goes to the ADC input ADC converts signals from the oxygen and temperature sensors into codes fed to the microcontroller The microcontroller shall process the codes and shows data on the l...

Page 9: ...sing 14 The protective bushing 15 covers the probe electrode member and is thread joined with the cable sleeve 16 The cable 17 connects the probe electrode member to the convertor unit 1 5 4 Functions of keys on the convertor unit front panel The analyzer uses non locking keys The symbols on the light key space show their functions in DOC measurement mode The symbols on the dark key space reflect ...

Page 10: ...de to the mode of data view entered into the scratchpad It is to be held depressed for 0 5 s when working with the scratchpad and display menu to move in a line rightward The key is used in measurement mode to turn on and off display illumination when working with the scratchpad and display menu to exit from scratchpad and menu displays The key is used in measurement mode to enter the display menu...

Page 11: ...l shows the dry cell charge level as follows one bar 25 two bars 50 three bars 75 four bars 100 date day and month and current time The date and time are set up as described in 1 5 8 menu option DATE TIME measured DOC value To move from the mode of DOC measurement in ppb and ppm to the mode of DOC measurement in saturation the key is used temperature of analyzable fluid С the value of salt content...

Page 12: ...Using and keys move the cursor against the folder required for instance SHARED FOLDER and depress the key If there are no folders made by a user data shall be entered in the SHARED FOLDER The display shown in Fig 1 5 shall appear for 2 s and then the analyzer shall change the current mode to the measurement mode Fig 1 5 The selected folder shall contain the following date and time of measurement t...

Page 13: ...lly open The display shall show measurements saved in the folder according to date and time The intermittent cursor shall automatically move to the last entry If space on the screen is not enough for measurement data arrows at the top and bottom of the scroll bar shall show where at the top or bottom of the list the measurement data invisible on the screen are to be found To scroll the data list u...

Page 14: ...ECORD DELETED message shall appear on the screen for 2 s If the cursor is moved against EXIT and the key is depressed the displays shown in Fig 1 6 1 8 come up Pad shall be edited including clearing of folders making new folders folder deletion as described in 1 5 8 SCRATCHPAD EDITOR menu command To go over to the measurement mode or exit from any display and return to the previous display press t...

Page 15: ...8 1 DATE TIME menu command DATE TIME is the menu command to enter date and time The DATE TIME display is shown in Fig 1 11 Fig 1 11 Date and time shall be entered separately in any order date month hours and minutes Moving to the left and to the right is carried out using the keys In this case the parameter that may be changed starts flickering Parameters shall be changed using the keys In open DA...

Page 16: ... readings in ppb with the probe located in the zero solution on calibration SHIFT Parameters of the probe in good working condition shall lie in the following ranges PROBE CURRENT from 1 to 10 μA SHIFT from minus 2 9 to plus 2 9 ppb If the cursor is moved against PROBE CURRENT and key is depressed the display shall show the time of the previous analyzer calibration as show in Fig 1 13 Fig 1 13 If ...

Page 17: ...lyzer shall return to the METER PARAMETERS display If the cursor is moved against the INITIAL SETTINGS command and the key is depressed the display shown in Fig 1 15 shall come up Fig 1 15 Depress the key for 2 s and the display shown in Fig 1 16 shall come up and the analyzer shall change the current display to the METER PARAMETERS display Fig 1 16 MODE MENU RECORD ENTER RECORD ENTER RECORD ENTER...

Page 18: ...is depressed On selection of this sub menu command the display shown in Fig 1 18 shall come up Fig 1 18 If the cursor is moved against OFF automatic illumination shall not work Select parameter needed and depress the key Note At supply voltage of 2 4 V and below display illumination does not work AUTOSHUTDOWN is the sub menu command intended to set deactivation time of 15 min or 30 min once any of...

Page 19: ...is moved against ON and the key is depressed on activation of the meter the display shown in Fig 1 21 shall come up if a time period after the previous analyzer calibration exceeds 10 days On depressing any key the analyzer shall go over to the measurement mode If calibration has not been carried out on next actuation of the analyzer calibration remind shall appear again Fig 1 21 RECORD ENTER RECO...

Page 20: ... value shall not work Select parameter needed and depress the key 1 5 8 4 SCRATCHPAD EDITOR menu command SCRATCHPAD EDITOR is the display shown in Fig 1 23 Fig 1 23 1 CLEAR FOLDER display is shown in Fig 1 24 Names of folders may be different Fig 1 24 RECORD ENTER SCRATCHPAD EDITOR CLEAR FOLDER CLEAR ALL FOLDERS CREATE FOLDER DELETE FOLDER CLEAR FOLDER SHARED FOLDER POINT 1 POINT 2 POINT 5 POINT 3...

Page 21: ...the same manner 2 CLEAR ALL FOLDERS display is shown in Fig 1 26 Fig 1 26 Press the key All folders are clear The display shall show NO RECORDS message for 2 s and the analyzer shall go over to the SCRATCHPAD EDITOR display 3 CREATE A FOLDER display is shown in Fig 1 27 If the pad is filled to capacity the CREATION OF NEW FOLDER IS IMPOSSIBLE DELETE ANY FOLDER message shall appear on the screen RE...

Page 22: ... entered on To save the folder made move the cursor to SAVE FOLDER command and depress the key The analyzer shall go over to the SCRATCHPAD EDITOR display If the pad contains a folder bearing the name which is entered on pressing the key the FOLDER WITH SUCH NAME ALREADY EXISTS message shall appear on the screen The cursor may be moved against DELETE SYMBOL command to change the folder name If the...

Page 23: ... for 2 s and the analyzer shall go over to DELETE FOLDER display Other folders except SHARED FOLDER may be deleted in the same manner 1 5 8 5 SALINITY menu command SALINITY is the menu command used to enter salt content values in measurements in salt water On selection of this command the display with an intermittent figure shown in Fig 1 31 shall come up Using the keys and set up the desirable sa...

Page 24: ...peration Manual Troubleshooting Table 2 1 The display shown in Fig 1 32 comes up when analyzable fluid temperature exceeds 50 0 С Simultaneously an audible signal comes on Fig 1 32 The display shown in Fig 1 33 comes up when temperature exceeds 99 9 С failure in the temperature measuring channel Fig 1 33 RECORD ENTER 15 Oct 10 11 125 0ppb t t max 76 5 С 22 Sep 14 17 125 0ppb t t max С SALINITY 24 ...

Page 25: ...50 ppm If a value exceeds 199 9 ppm instead dashes shall come up Fig 1 35 1 5 10 Error displays The display shown in Fig 1 36 comes up in the event of analyzer program failure Refer to 2 6 of the Operation Manual Troubleshooting Table 2 1 Fig 1 36 24 Sep 13 56 152 7ppm О2 О2 max 11 8 С 24 Sep 13 56 1258ppb t t min 16 5 С SALT 25 ppt SALT 25 ppt ROM ERROR DEFECT METER ...

Page 26: ... out calibration Fig 1 39 The display shown in Fig 1 40 comes up in the event of erroneous record in the pad On selection of DELETE RECORD command the record shall be deleted with no warning and the meter shall return to the measurement mode On selection of EXIT command the meter shall return to the measurement mode On viewing this record in the pad the display shall show ERROR message CALIBRATION...

Page 27: ...he analyzer maintenance shall additionally require the following tools and appliances not included into the delivery set 2 mm cross screwdriver В 1 250 beaker КН 100 19 26 flask chemically pure hydroquinone chemically pure sodium or potassium hydroxide ...

Page 28: ...this manual and safety rules for handling reagents and solutions according to GOST 12 1 007 76 and GOST 12 4 021 75 2 2 2 The analyzer meets safety requirements of Class III according to GOST R 52319 2005 Rated supply voltage varies from 2 2 to 3 4 V Grounding is not required 2 2 3 The analyzer electromagnetic compatibility meets requirements of GOST R 51522 99 for class В equipment 2 3 Analyzer p...

Page 29: ...ies shall be charged with 5 V voltage and analyzer connected to the PC USB port The dry cell compartment is provided with the sign WARNING warning that the analyzer may not be connected to USB port if the meter uses AA alkaline dry cells To connect the meter to the USB port remove them from the compartment and replace with two AA nickel metal hydride batteries 2 3 2 To make oxygen probe available ...

Page 30: ...y The display shown in Fig 2 1 shall come up Fig 2 1 2 Move the marker to AUTOMATIC command and depress the key The display shown in Fig 2 2 shall come up Fig 2 2 3 Remove the probe from the vessel with water and place horizontally in air for instance place on a table hold for 5 min and press the key The display shown in Fig 2 3 shall come up first and then the display shown in Fig 2 4 RECORD ENTE...

Page 31: ...er to 2 6 Troubleshooting 5 Press any key and the analyzer shall go over to the measurement mode Fig 2 6 Fig 2 7 RECORD ENTER AUTOCALIBRATION MEASURING t 25 3 C p 99 9 kPa AUTOCALIBRATION 8 56ppm t 25 3 C p 99 9 kPa CALIBRATION COMPLETED PRESS ANY KEY CALIBRATION IMPOSSIBLE HIGH PROBE CURRENT EXIT CALIBRATION IMPOSSIBLE LOW PROBE CURRENT EXIT ...

Page 32: ...cordance with 2 3 4 If readings do not drop down to the abovementioned values the probe cycling should be undertaken in compliance with 2 3 3 3 2 3 3 3 Probe cycling For cycling proceed as follows switch on the analyzer prepare zero solution according to 2 3 3 2 submerge the probe into the zero solution with the membrane downward and using it gently shake the solution to prevent air bubbles accumu...

Page 33: ...ride batteries Prior to calibration the probe is to be fully submerged in distilled water for at least 10 min at room temperature Switch on the analyzer 1 Press the key The display shown in Fig 2 8 shall come up Fig 2 8 2 Move the marker to AUTOMATIC command and depress the key The display shown in Fig 2 9 shall come up Fig 2 9 3 Shake water drops off the probe membrane and place the probe into a ...

Page 34: ...as analyzer readings become steady approximately in 10 min press the key The display shown in Fig 2 13 shall come up Fig 2 13 If in 10 min the key is not depressed the analyzer shall terminate calibration process and go over to the display shown in Fig 2 13 6 Press any key and the analyzer shall go over to the measurement mode RECORD ENTER RECORD ENTER RECORD ENTER AUTOCALIBRATION MEASURING t 25 3...

Page 35: ... content in vol or against a solution with known DOC value manual This calibration is undertaken additionally to reduce inaccuracy of measurements Analyzer GSO CGM calibration is to be carried out either against a solution with known DOC value or oxygen content close to the values measured Prior to manual calibration an automatic calibration against atmospheric air is recommended 2 3 5 1 Analyzer ...

Page 36: ...me up Fig 2 15 2 Move the marker to MANUAL command and depress the key The display shown in Fig 2 16 shall come up CAL RECORD ENTER CALIBRATION AUTOMATIC MANUAL Oxygen probe Transducing block Cup for calibration Distilled water Capillary tube Rotameter Bottle with CGM ...

Page 37: ...ring Once the desired value has been set up oxygen volume concentration in vol taken from the certificate of the used CGM press the key and the analyzer shall go over to the measurement mode If a value below 0 13 vol or above 21 vol is entered the display shown in Fig 2 20 shall appear for 2 s and then the analyzer shall go over to the display READ CAL MODE MENU RECORD ENTER RECORD ENTER RECORD EN...

Page 38: ...alt content value was entered prior to change to the manual calibration mode the analyzer shall be calibrated with regard to salt content 2 3 5 2 Analyzer calibration against solution with known DOC value Calibration against solution with known DOC value is to be undertaken if for instance a reference dissolved oxygen analyzer is available In this case DOC in the same solution is to be measured by...

Page 39: ...The display shown in Fig 2 24 shall come up Fig 2 24 4 To move within the command to the left and to the right use the keys and The digit that may be changed using the keys and starts flickering Once the desired value has been set up press the key and the analyzer shall go over to the measurement mode READ CAL MODE MENU RECORD ENTER RECORD ENTER RECORD ENTER RECORD ENTER MEASURING UNITS ppb vol MA...

Page 40: ... analyzer zero shift Analyzer zero shift setting allows for compensation within small ranges from minus 2 9 to plus 2 9 ppb of the probe residual zero current The operation is recommended on measurements of low DOC Before setting proceed as follows switch on the analyzer prepare fresh zero solution as prescribed in 2 3 3 2 switch on the analyzer carry out cycling according to 2 3 3 3 hold the prob...

Page 41: ...w shift value When the key is depressed the analyzer shall change to the METER PARAMETERS display with previous shift value 2 4 Measurement procedure 2 4 1 Pre measurement operations Measurements carried out by the analyzer of the MAPK 303Т version shall mostly involve a flow through cell MAPK 303Т analyzer spare parts kit includes the flow through cell shown in Fig 2 26b made of stainless steel a...

Page 42: ...t s nipples in the support s holes and secure the flow through cell on the support using the nut on the inlet nipple of the flow through cell Fig 2 27 2 4 2 Measurements using a flow through cell Connect the inlet nipple of the flow through cell with the probe to the line with controllable water using a flexible hose IMPORTANT The length of the flexible hose is to be as short as possible This is d...

Page 43: ...related results on using samplers are indicative of availability of electrically active impurities in the analyzable water Note According to 1 3 11 in DOC measurements the limit MAPK 303Т analyzer reading setting time tу reaches 30 min i e in a 30 min period the readings of the analyzer in fresh zero solution shall not exceed 0 003 ppm True setting time of new analyzer readings varies from 1 to 3 ...

Page 44: ...dition if it meets the following requirements analyzer readings do not exceed 3 ppb when the probe is placed in the zero solution on calibration against atmospheric air 2 3 4 the displays shown in Fig 2 6 and 2 7 do not come up and on calibration the readings Ccal ppm are settled with accuracy of 1 of the value predetermined from the formula 325 101 2 atm cal Р t Со С where Со2 t ppm is solubility...

Page 45: ...mbrane 2 6 4 Replace membrane assembly Low quality zero solution Replace zero solution Broken cracked probe electrode glass tube holder To be repaired at factory 4 On analyzer calibration against atmospheric air the display with CALIBRATION IMPOSSIBLE LOW PROBE CURRENT message comes up No electrolyte 2 6 3 Fill electrolyte Dirty membrane 2 6 2 Clean membrane Dry membrane Make membrane wet for 2 3 ...

Page 46: ...th PROBE PARAMETERS ERROR message comes up Temperature measuring channel failure broken temperature sensor To be repaired at factory 11 The display with CALIBRATION PARAMETERS ERROR PERFORM CALIBRATION message comes up Fig 1 39 Analyzer program failure Carry out calibration 12 During measurements the display shows О2 О2 max message Fig 1 35 which flickers with the value It means that the measured ...

Page 47: ... as it will go Screw on the protective sleeve WARNING The membrane is to be tightened and closely keep to the platinum electrode of the probe PREVENT separation of the membrane from the cathode In operation volume of electrolyte may decrease due to outflow through micro orifices in the membrane In this case the residual electrolyte in the probe is to be replaced When replacing electrolyte remove t...

Page 48: ...oosen and remove the protective sleeve from the probe according to Fig 2 28 Remove the membrane assembly from the casing and drain electrolyte from the assembly Check for the Teflon film integrity Cable sleeve Protective sleeve Sleeve Remove Syringe with electrolyte Membrane assembly Body Nylon threads Teflon film Membrane а Remove ...

Page 49: ... of tears and holes near the platinum electrode Take new membrane assembly from the SPTA kit Hold it vertically fill it with electrolyte and carefully put it onto the sleeve Mount and tighten the protective sleeve After replacement of the membrane assembly or Teflon film carry out operations in 2 3 3 2 3 4 2 6 5 Cleaning of platinum electrode The platinum electrode is to be cleaned in a special so...

Page 50: ...alyzer initial parameters including shift zero shift and slope which corresponds to an average probe This makes it possible to start calibration with preset initial conditions The mode is to be used if analyzer calibration performance is doubtful Initial parameters are to be set up according to 1 5 8 ...

Page 51: ...ter quickest response in DOC measurements If conditions in 2 5 are met the analyzer ensures performance laid down in 1 3 4 DELIVERY SET 4 1 Analyzer delivery set is shown in Table 4 1 Table 4 1 Description Identification Quantity 1 MAPK 303Т dissolved oxygen analyzer ВР47 00 000 1 2 Spare parts for oxygen probe ВР47 04 000 1 3 Tools and accessories kit ВР47 05 000 1 4 Tools and accessories kit ВР4...

Page 52: ...0 08 10 06 10 04 10 02 10 00 9 98 9 96 9 94 9 92 9 90 16 9 87 9 85 9 83 9 81 9 79 9 77 9 75 9 73 9 71 9 69 17 9 66 9 64 9 62 9 60 9 58 9 56 9 54 9 52 9 50 9 49 18 9 47 9 45 9 43 9 41 9 39 9 37 9 36 9 34 9 32 9 30 19 9 28 9 26 9 24 9 22 9 21 9 19 9 17 9 15 9 13 9 11 20 9 09 9 08 9 06 9 04 9 02 8 01 8 99 8 97 8 95 8 93 21 8 91 8 89 8 87 8 86 8 85 8 83 8 81 8 80 8 78 8 76 22 8 74 8 73 8 71 8 69 8 68 ...

Page 53: ... 43 6 12 6 11 6 10 6 09 6 08 6 07 6 06 6 05 6 04 6 04 44 6 03 6 02 6 01 6 00 5 99 5 98 5 97 5 96 5 95 5 94 45 5 93 5 92 5 92 5 91 5 90 5 89 5 88 5 87 5 86 5 85 46 5 84 5 83 5 82 5 82 5 81 5 80 5 79 5 78 5 77 5 76 47 5 75 5 74 5 74 5 73 5 72 5 71 5 70 5 69 5 68 5 67 48 5 66 5 66 5 65 5 64 5 63 5 62 5 61 5 60 5 59 5 59 49 5 58 5 57 5 56 5 55 5 54 5 53 5 52 5 52 5 51 5 50 50 5 49 5 48 5 47 5 47 5 46 ...

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