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Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide      

 

 

 

 

 

4 

 

4.5.3

 

Dissolved Oxygen Calibration ..............................................................................................................................................87

 

4.5.4

 

Dissolved Oxygen Maintenance ...........................................................................................................................................91

 

4.6

 

T

URBIDITY

.......................................................................................................................................................................................91

 

4.6.1

 

Drinking Water Turbidity .......................................................................................................................................................92

 

4.6.2

 

Wide-Range Turbidity Measurement System.......................................................................................................................92

 

4.7

 

T

EMPERATURE 

C

ALIBRATION

............................................................................................................................................................93

 

5

 

DIAGNOSTICS AND TROUBLESHOOTING........................................................................................................................................95

 

5.1

 

D

IAGNOSTICS

..................................................................................................................................................................................95

 

5.2

 

T

ROUBLESHOOTING

.........................................................................................................................................................................96

 

5.2.1

 

pH Sensor Head inspection..................................................................................................................................................97

 

5.2.2

 

ORP Sensor Head inspection...............................................................................................................................................97

 

5.2.3

 

Dissolved Oxygen and Ozone Sensor Head inspection.......................................................................................................98

 

5.2.4

 

Contacting Conductivity Sensor Head inspection.................................................................................................................98

 

5.2.5

 

Toroidal Conductivity Sensor Head inspection.....................................................................................................................98

 

6

 

PROGRAMMING GUIDE - COMMANDS AND RESPONSES..............................................................................................................99

 

7

 

FREE CHLORINE CONCENTRATION CALCULATION ....................................................................................................................107

 

8

 

COMPLIANCE INFORMATION...........................................................................................................................................................109

 

9

 

LIMITED WARRANTY.........................................................................................................................................................................110

 

10

 

TERMS AND CONDITIONS ................................................................................................................................................................111

 

 

 

Содержание Scientific AquaSensors DataStick

Страница 1: ...e interchangeable communication adapters interchangeable sensor heads universal sensor module PLC MODBUS Toroidal Resistivity Conductivity Ozone ORP Dissolved Oxygen pH USB RS 232 RS 485 ProfiBus MODB...

Страница 2: ...k ROSS Resolution SAOB SMART AVERAGING Smart CheK SMART STABILITY Stacked Star Navigator 21 Stat Face The Enhanced Lab ThermaSense Triode TRIUMpH Unbreakable pH Universal Access are trademarks of Ther...

Страница 3: ...e is subject to change without notice as improvements are made and does not represent any commitment whatsoever on the part of Thermo Fisher Scientific Thermo Fisher Scientific cannot accept any respo...

Страница 4: ...he manner specified Only a skilled trained or authorized person should carry out installation setup and operation of the system Before using the sensor make sure that the sensor cable is connected as...

Страница 5: ...4 1 DIFFERENTIAL PH MEASUREMENT 25 4 1 1 pH Interface Overview 26 4 1 2 pH Configuration 26 4 1 3 pH Calibration 30 4 1 4 pH Sensor Diagnosis 38 4 1 5 pH Sensor Maintenance 39 4 2 DIFFERENTIAL ORP MEA...

Страница 6: ...NOSTICS AND TROUBLESHOOTING 95 5 1 DIAGNOSTICS 95 5 2 TROUBLESHOOTING 96 5 2 1 pH Sensor Head inspection 97 5 2 2 ORP Sensor Head inspection 97 5 2 3 Dissolved Oxygen and Ozone Sensor Head inspection...

Страница 7: ...nting Hardware Overview 13 Figure 9 The inner workings of the User Entered Concentration Table 61 Figure 10 The inner workings of the User Entered Concentration Table 77 Table of Tables Table Number a...

Страница 8: ...ormance is not affected by cable length and can be run up to 3 000 feet depending on the selected communications protocol Thermo Fisher Scientific does not accept any liability for damage that may ari...

Страница 9: ...Observing the prescribed environmental and operational conditions Observing chemical compatibility with all wetted materials 1 3 Safety Instructions The DataStick Analytical System should be installed...

Страница 10: ...ct Disposal of Unit When the sensor is taken out of service o This equipment is suitable for use in Class I Division 2 Groups A B C d or Non Hazardous Locations Only The equipment shall be supplied fr...

Страница 11: ...and direct interactive communication with control systems and computers Communications Selections RS 232 ASCII RS 232 DF1 RS 485 MODBUS PROFIBUS DEVICENET ETHERNET USB WIRELESS Body Material 316 Stain...

Страница 12: ...btain calibrated data Any computer system can be set up to communicate directly by configuring the DataStick system with the appropriate communications adapter If local display and standard 4 20 milli...

Страница 13: ...more complex systems Drinking water turbidity measurements are provided using a DataStick installed in a specially designed sample chamber that has a white light source in the lid The system provides...

Страница 14: ...de RS 232 ASCII Laboratory PC AquaComm HyperTerminal ASCII Commands and Responses shown in the appendix of this user guide Modbus RTU over RS 232 or RS 485 AV38 Local Display PLC with Modbus Network A...

Страница 15: ...ve special mounting rings between the wrench flats and the NPT threads Figure 8 Mounting Hardware Overview Use a 1 inch wrench to turn the sensor body into pipe fittings that have internal 1 inch NPT...

Страница 16: ...installed or secured It the sensor head has dried out refer to the maintenance and refurbishment sections of this user guide 3 2 Mounting Use a 1 inch wrench to turn the sensor body into pipe fittings...

Страница 17: ...er through conduit or on a cable tray b Insert the sensor cable into junction box through a watertight cord grip c Connect the sensor wires into the terminal block as specified on the cable label 2 Mo...

Страница 18: ...e cable and onto the adapter with the threads facing the front of the sensor c Route the cable either through conduit or on a cable tray d Insert the sensor cable into the junction box through a water...

Страница 19: ...1 Wiring a Route the sensor cable through the 1 5 inch extension pipe b Apply Teflon tape to the sensor threads c Attach the sensor to the 1 0 inch NPT reducing coupling by turning the sensor in a cl...

Страница 20: ...sert the sensor cable into the junction box through a watertight cord grip d Connect the sensor wires into the terminal block as shown on the cable label Mount a Insert the sensor into the adapter mak...

Страница 21: ...assisted units in both Stainless Steel and CPVC The air water assisted mounting hardware is fitted with a 3 way control for air or water assist with a maximum pressure of 120 psi The user guide mount...

Страница 22: ...s and Ethernet Adapters are provided with standard connectors and discrete wiring for these adapters is not needed Color DeviceNet Modbus RTU over RS 232 or RS 485 RS 232 RED 24 VDC 12 to 30 VDC 12 to...

Страница 23: ...nsors connected to the AV38 communicate via Modbus RTU As such the AV38 can be used to select one of several DataStick sensors on the bus for display current output reporting and relay alarms by selec...

Страница 24: ...ed and the display system will change accordingly Shortcut Icon The first time the program is launched it will most likely come up with blanks in the screen Select FILE and the NEW CONNECTION to conne...

Страница 25: ...able under FILE Calibration configuration and diagnostic choices are not available when logging is active 3 4 4 Open Protocol Commands Open protocol ASCII commands are available with all communication...

Страница 26: ...nt types on request and make them compatible with installed systems The sensor head transducer is keyed and plugs into the end of the DataStick marked Transducer Module Insert the sensor head until it...

Страница 27: ...urement accuracy is maintained when transferring the sensor head from one DataStick to another This makes it possible to set up a DataStick system in the laboratory for calibration and test purposes S...

Страница 28: ...on will remain as programmed by the user It will not revert to default values When calibrating the pH measurement be sure that the current configuration settings are well understood Calibration option...

Страница 29: ...nd Response Explanation Get Standards GPHBUF 0 4 7 10 pH Standards 1 DIN pH Standards ASCII Commands to Set Buffer Settings Function Command Explanation Set Standard to 4 7 10s SPHBUF 0 Sets buffer ca...

Страница 30: ...of seconds Get Temp Filter GTFIL A number between 0 and 100 Number of seconds ASCII Commands to Set Sensor and Temperature Filter Settings Function Command Explanation Set Sensor Filter SSFIL X Where...

Страница 31: ...om the Configuration pull down menu to view or change units of measure Units shown in the temperature units window are active To change units or to review options scroll the selection list Click on th...

Страница 32: ...buffer calibration the DataStick assumes that the sensor has been placed in a pre defined buffer standard and automatically equates the current reading to the closest standard value For a 1 point pH...

Страница 33: ...number returned is a 1 the calibration is in process When the last number returned is a 2 the calibration has been successful Any other number indicates a specific failure mode see appendix 4 1 3 2 2...

Страница 34: ...the calibration has been initiated it will take between 15 seconds and 2 minutes depending on sensor and temperature measurement stability During this period the abort sequence can be initiated as sho...

Страница 35: ...calibration is in progress the operation can be aborted at any time The abort will take the system back to normal measurements using the previous calibration values Once the calibration for both poin...

Страница 36: ...MPLE from the calibration menu to begin the calibration sequence If buffer standards are not available or if it is desired to calibrate to process values the 2 point sample calibration method may be a...

Страница 37: ...rement stability During this period the abort sequence can be initiated as shown with the active ABORT button When the first calibration point is accepted the status box will prompt the user to place...

Страница 38: ...n menu Exiting the calibration menu will return the display to the measure screen ASCII Command to initiate a 2 Point Sample Calibration Function Command Explanation 2 Point Sample First Sample CALPH2...

Страница 39: ...lish an accurate calibration Once the desired value for calibration is entered the CALIBRATE button becomes active Once the displayed sensor and temperature values are stable and near expected values...

Страница 40: ...bration of the pH sensor All Calibration Commands will respond with OK if accepted and ERROR if not accepted The status of the calibration can be reviewed with the CALSTATUS command When the last numb...

Страница 41: ...r other mineral deposits a weak solution about 0 1 M of hydrochloric acid may be used In some cases a dilute solution about 10 1 of water and chlorine bleach or a solution of water and EDTA may also w...

Страница 42: ...reference O ring Slowly screw the new salt bridge clockwise onto the sensor head until secure Tighten the salt bridge with a 15 16 wrench 24mm until snug After replacing the salt bridge and reference...

Страница 43: ...ption Part Number Reference Cell Filling Solution 500 ml RCS02 Protected PEEK Salt Bridge O ring included SBS01 Flat PEEK Salt Bridge O ring included SBS02 Protected CPVC Salt Bridge O ring included S...

Страница 44: ...ion 4 2 1 ORP Interface Overview When an ORP sensor head is installed in the DataStick AquaComm will automatically display millivolts temperature sensor type and DataStick serial number Pull down menu...

Страница 45: ...ONFIGURE functions can be accessed from a pull down menu that automatically changes based on the sensor type connected to the DataStick When an ORP sensor is connected settings for data filters and un...

Страница 46: ...Sensor and Temperature Filter Settings Function Command Response Explanation Get Sensor Filter GSFIL A number between 0 and 100 Number of seconds Get Temp Filter GTFIL A number between 0 and 100 Numbe...

Страница 47: ...and ERROR if not accepted 4 2 3 ORP Calibration When an ORP sensor is connected to the DataStick calibration choices specific to ORP are automatically available After a calibration the sensor head ca...

Страница 48: ...esired value for calibration is entered the CALIBRATE button becomes active Once the displayed sensor value is stable and near the expected value click the CALIBRATE button to initiate the calibration...

Страница 49: ...l require Proper and regular maintenance will yield a longer sensor life The recommended ORP sensor cleaning procedure is as follows 1 Remove sensor from service and rinse or spray it with warm water...

Страница 50: ...n Rinse the reservoir with distilled or de ionized water Slowly fill the reservoir with Thermo Scientific AquaSensors Reference Filling Solution P N RCS02 so the solution just covers the reference O r...

Страница 51: ...during installation To insure that pins remain free of moisture and dirt a rubber boot is supplied with replacement sensor heads and should be kept in place when the sensor is being transferred or pl...

Страница 52: ...ogrammed by the user It will not revert to default values Calibration options for the toroidal conductivity sensor are 1 point Sample Calibration Desired reading is entered for one sample to adjust me...

Страница 53: ...ration pull down menu to view or change the temperature filter constant The filter setting can be changed by selecting the edit box and typing in the desired constant To accept the change click OK To...

Страница 54: ...ity measurements can be set to conductivity in S cm concentration in total dissolved solids in ppm and resistivity in M cm Default units of measure are S cm Concentration measurements are converted fr...

Страница 55: ...nd Explanation Set C STUNITS 0 Sensor data will be reported in C Set F STUNITS 1 Sensor data will be reported in F All Set Commands will respond with OK if accepted and ERROR if not accepted 4 3 2 5 C...

Страница 56: ...xplanation 0 The type of temperature compensation used is Linear default 1 The type of temperature compensation used is Natural Water View conductivity temperature compensation type GCTCTYPE 2 The typ...

Страница 57: ...eported in C ASCII Command to Set Conductivity Reference Temperature Function Command Explanation Set Reference SCRTEMP X Where X is a number between 0 and 100 Units are in C All Set Commands will res...

Страница 58: ...ted 4 3 2 9 TEN POIN T CONC ENTRAT ION TABLE ENTRIES Select CONCENTRATION TABLE from the configuration menu to view or change any or all of the points in the table When selecting the ten point concent...

Страница 59: ...tivity Vs Concentration Table Point Conductivity S cm Concentration 1 0 0 2 20 000 99 99 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 10 0 0 The following example shows how to change and add data points...

Страница 60: ...and REVERT buttons are now active If the point is what is intended click the STORE button to save the point to temporary memory Clicking REVERT will restore the point to what it was before editing was...

Страница 61: ...now be permanently stored using the ACTIVATE STORED TABLE button If any error messages are shown review the data points to be sure they are monotonic that conductivity increases from point 1 and that...

Страница 62: ...uctivity after Editing Point Conductivity S cm Concentration 1 0 0 2 20 000 50 3 50 000 70 4 100 000 97 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 10 0 0 When the units of measure are set to the conversion from co...

Страница 63: ...the scratch table This helps to insure that the scratch table is always known and valid Figure 9 The inner workings of the User Entered Concentration Table For the scratch table to be considered vali...

Страница 64: ...ting Conductivity Calibration When a contacting conductivity sensor is connected to the DataStick calibration choices specific to contacting conductivity are automatically available After a calibratio...

Страница 65: ...equence can be initiated as shown with the active Abort button When the point has been successfully calibrated measured values will be based on the new zero The rate of change in reading from the old...

Страница 66: ...tacting conductivity span calibration When the 1 point sample method is chosen the status box will prompt the user to enter the desired calibration value This calibration should be initiated when the...

Страница 67: ...n Function Command Explanation 1 Point Sample CALS1PS Initiates a 1 point calibration All Calibration Commands will respond with OK if accepted and ERROR if not accepted The status of the calibration...

Страница 68: ...cyanide and the hydrochloric acid Cyanide is often used in electroplating and in gold refining If in doubt check with a chemist Caution When using dangerous chemicals such as hydrochloric acid or chl...

Страница 69: ...ogrammed by the user It will not revert to default values Calibration options for the toroidal conductivity sensor are 1 point Sample Calibration Desired reading is entered for one sample to adjust me...

Страница 70: ...be changed by selecting the edit box and typing in the desired constant To accept the change click OK To abort the change click CANCEL If the temperature filter is set to 5 seconds it will take 5 sec...

Страница 71: ...menu to view or change units of measure Units shown in the sensor units window are active To change units or to review options scroll the selection list Click on the desired units of measure to place...

Страница 72: ...ew or change units of measure Units shown in the temperature units window are active To change units or to review options scroll the selection list Click on the desired units of measure to place the n...

Страница 73: ...ill be Linear and it will be based on the reference temperature and slope set with the SCRTEMP and SCCSLOPE commands respectively Set conductivity temperature compensation type to Natural Water SCTCTY...

Страница 74: ...rom 0 to 9 9 with up to two decimal places The setting can be changed by selecting the edit box and typing the desired number To accept the change click OK To abort the change click CANCEL The referen...

Страница 75: ...e or decrease with each point The table must start at POINT 1 and continue incrementally from there Unused points except POINT 1 have zero zero coordinates Current entries can be viewed by scrolling u...

Страница 76: ...place the cursor in the concentration coordinate window Delete the 99 9 in the concentration coordinate and replace it with 50 Note that the STORE and REVERT buttons are now active If the point is wh...

Страница 77: ...nd replace the zero coordinates with 50 000 S cm at 70 concentration Then click on the STORE button to save point 3 to temporary memory Scroll to point 4 and replace the zero coordinates with 100 000...

Страница 78: ...oint 1 Once the table has been activated use the EXIT button and return to the main measure menu Table entries for specific chemicals are available from Thermo Fisher Scientific Customer Service on re...

Страница 79: ...the scratch table This helps to insure that the scratch table is always known and valid Figure 10 The inner workings of the User Entered Concentration Table For the scratch table to be considered vali...

Страница 80: ...e DataStick calibration choices specific to toroidal conductivity are automatically available After a calibration the sensor head can be moved to another DataStick and measurement accuracy will be mai...

Страница 81: ...s During this period the abort sequence can be initiated as shown with the active Abort button When the point has been successfully calibrated measured values will be based on the new zero The rate of...

Страница 82: ...ilure mode see appendix 4 4 3 2 ONE PO INT SAMPLE CALIBRATION Select 1 POINT SAMPLE from the calibration menu to begin a toroidal conductivity span calibration When the 1 point sample method is chosen...

Страница 83: ...t calibration of toroidal sensor All Calibration Commands will respond with OK if accepted and ERROR if not accepted The status of the calibration can be reviewed with the CALSTATUS command When the l...

Страница 84: ...Be sure the DataStick cavity is also free of dirt and moisture prior to insertion 4 5 1 Dissolved Oxygen Ozone Interface Overview When an Dissolved Oxygen Ozone sensor heads are installed in the DataS...

Страница 85: ...rom a pull down menu that automatically changes based on the sensor type connected to the DataStick When a dissolved oxygen sensor is connected settings for data filters units of measure atmospheric p...

Страница 86: ...or and Temperature Filter Settings Function Command Explanation Set Sensor Filter SSFIL X Where X is a number between 0 and 100 Units are in seconds Set Temp Filter STFIL X Where X is a number between...

Страница 87: ...mands will respond with OK if accepted and ERROR if not accepted 4 5 2 4 TEMPERATURE UNITS Select TEMPERATURE UNITS from the Configuration pull down menu to view or change units of measure Units shown...

Страница 88: ...stem will accept any number between 539 2 and 792 4 with up to one decimal place The default PRESSURE setting for dissolved oxygen and ozone measurements is 760mm Hg ASCII Command to View Conductivity...

Страница 89: ...lanation Set Salinity SSALT X Where X is a number between 0 and 999 9 Units are in mS cm All Set Commands will respond with OK if accepted and ERROR if not accepted 4 5 3 Dissolved Oxygen Calibration...

Страница 90: ...ted measuring range Stable temperature and sensor readings will also help to establish an accurate calibration Once the desired value for calibration is entered the CALIBRATE button becomes active Onc...

Страница 91: ...d Explanation 1 Point Sample CALS1PS Initiates a 1 point calibration All Calibration Commands will respond with OK if accepted and ERROR if not accepted The status of the calibration can be reviewed w...

Страница 92: ...8 ppm to 10 ppm depending on the atmospheric pressure setting Consult dissolved oxygen tables for more specific information on expected readings after an AIR calibration Exiting the calibration menu w...

Страница 93: ...a spray of warm clean water Soaking in water and detergent may loosen additional material Use a cleaner that does not contain oily hand softeners such as aloe or lanolin Powdered Alconox and Dawn wor...

Страница 94: ...bration configuration and diagnostics Sample Chamber and Plumbing This sample chamber is used to remove bubbles and prepare the sample for measurement It has a lid with a white light source Terminal B...

Страница 95: ...he user to enter the desired calibration value Once the desired value for calibration is entered the CALIBRATE button becomes active Once the displayed temperature value is stable and near expected va...

Страница 96: ...urn the user to the measure screen ASCII Command to initiate a 1 Point Temperature Calibration Function Command Explanation Temperature Calibration CALST1PS Initiates a 1 point calibration of temperat...

Страница 97: ...formation will be detailed in the following report In this example specific information can link the specific DataStick to calibration and test information at the factory Whenever there are issues in...

Страница 98: ...ation Memory replace DataStick No 1 Check integrity of sensor electrodes membranes and junctions 2 Check sensor configuration to be sure appropriate parameters are properly set These include buffer ty...

Страница 99: ...t 3 pH units away from 7 pH Generally 4 pH buffer and 10 pH buffer work well If the reading is more than 1 pH unit off then the sensor needs to be refurbished or replaced Make sure the correct configu...

Страница 100: ...in 5 of the calculated reading then the DataStick should be computing correctly In liquid if the measurement reading is too far off for a valid calibration then the electrodes must be cleaned and be f...

Страница 101: ...baud rate parity are selectable using a Thermo Scientific AquaSensors software utility Ethernet USB DeviceNet Profibus do not require communications setup Commands and responses are organized in the f...

Страница 102: ...tion 0 4 7 10 pH Buffers 1 DIN Buffer Standards pH buffer calibration the current reading will be changed to the closest value in the buffer set selected DIN Buffer Standards are 1 09 4 65 6 79 9 23 a...

Страница 103: ...equal Buffer Set for pH Calibration GPHBUF Buffer type set for auto recognition during buffer calibration 0 4 7 10 pH Buffer 1 DIN Buffer Type pH buffer calibration the current reading will be change...

Страница 104: ...olution Readings do not change until the second point has been accepted 1 point pH Sample CALS1PS X Where X Desired number in pH Sample calibration changes the current value to a desired value Example...

Страница 105: ...bration for Dissolved Oxygen CALSAIR Put the sensor in air and initiate this calibration The final reading should be the amount of oxygen in air approximately 8 to 9 ppm depending on temperature press...

Страница 106: ...e monitoring the Z field When it changes from 1 to 2 Cal OK the calibration procedure is complete and has been successful If it changes from 1 to 3 or greater then the procedure is complete but has fa...

Страница 107: ...value in user set units every X seconds More detailed measurement information can help diagnose system integrity Readings will be reported every X seconds Raw Temperature Data CTEMP X Where X frequen...

Страница 108: ...The unique DataStick serial number is printed inside the comms adapter end of the tube body It can also be retrieved electronically and can be used to trace history Code Version Number GCVSN Get the C...

Страница 109: ...of Chlorination and Alternative Disinfectants Fourth Edition 1998 equation 4 relates the free chlorine concentration in ppm to the hypochlorous acid concentration in ppm the pH and the temperature in...

Страница 110: ...d from the pH DataStick F8 4 OCl HOCl for displaying to the user F8 5 OCl HOCl entered by user at calibration time F8 6 HOCl to be written to the Chlorine DataStick at calibration time The PLC reads a...

Страница 111: ...nd laboratory use per 89 336 EEC EMC Supporting test records were written and certified by Thermo Fisher Scientific LLC Test Standards include IEC 1000 4 2 1995 EN61000 4 2 1995 Electrostatic Discharg...

Страница 112: ...or installation 2 Damage caused by any repair or attempted repair not authorized by Thermo Fisher Scientific 3 Any product not used in accordance with the instructions furnished by Thermo Fisher Scien...

Страница 113: ...e not valid unless accepted in writing Sales taxes shall be included on the invoice unless a valid tax exemption certificate is supplied Return Material Authorization Contact Thermo Fisher Scientific...

Страница 114: ......

Страница 115: ......

Страница 116: ...herlands Tel 31 033 2463887 info water uk thermo com India Tel 91 22 4175 8800 wai asia thermofisher com Japan Tel 81 045 453 9175 wai asia thermofisher com China Tel 86 21 68654588 wai asia thermofis...

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