SENTRON SI400 7400-0 Manual Download

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SI line pH METER MANUAL

For products:
SI400

7400-0xx

SI600

7600-0xx

Summary of Contents for SI400 7400-0

Page 1: ...SI line pH METER MANUAL For products SI400 7400 0xx SI600 7600 0xx ...

Page 2: ... unless instructed to do so by a Sentron service engineer All information provided in this manual is applicable at the moment of publication Sentron holds the right to change components functions and procedures without notice Manual SI line pH meter Ref number E7500330 02 In the event your Sentron pH meter has this symbol on its label you are requested to return this meter to Sentron after use Sen...

Page 3: ... 4 1 Power save 12 4 2 Time 14 4 3 Button sound 14 4 4 Temperature 15 4 5 Language 15 5 Calibration 16 5 1 Determining the calibration type 17 5 2 Before calibration 18 5 3 Performing a calibration 19 5 4 Calibration reports 20 5 5 Calibration reminder 23 5 6 Buffer selection SI600 only 24 6 Options 27 6 1 Alarms SI600 only 27 6 2 Storing measurements 30 6 3 Bias setting 38 7 Maintenance 39 8 Trou...

Page 4: ...rantee provided on probes in the probe manual Sentron will according to its own judgment either replace or repair a defect meter within 12 months of shipment provided the cause is a defect in material of manufacturing and the defect appeared during correct use of the meter The guarantee explicitly excludes normal wear and tear and misuse of the meter The decision whether or not the guarantee is ap...

Page 5: ...5 1 3 Specifications ...

Page 6: ... normal use To recharge the batteries connect the meter to the power adapter using the supplied USB cable and place the power adaptor in a power outlet The meter will recharge in approximately 7 hours In case the meter batteries are empty and will not be recharged soon remove the batteries 2 1 3 Replacing batteries The three AA batteries required for operation of the meter are replaceable The rech...

Page 7: ... a longer time period the batteries should be fully recharged and removed from the meter 2 2 Connection of probe to meter The probe is designed to work in combination with a Sentron SI line pH meter Push the probe s connector into the socket on the upper side of the meter The white notch on the probe connector needs to be aligned with the meter having the notch facing towards the front side of the...

Page 8: ...tion and should not be removed unless instructed by a Sentron service engineer 3 Operation Operation of the SI meter is done via the 6 keys below the screen 3 1 Keypad The SI meter contains a keypad with six keys Navigation Display on off save power Move back one menu step Power meter on off Confirm or select menu steps Return to the main Home screen ...

Page 9: ...s The top of the screen contains the actual date DD MM YYY and the time user settable as 12 or 24 hour notation In the right hand corner the status of the battery is displayed Indicator Battery status Charging 100 capacity 75 capacity 50 capacity 25 capacity Almost empty 3 2 3 Measurement values The measurement values section on the home screen contains the pH and temperature recorded by the probe...

Page 10: ...er 5 5 for setting or changing the calibration reminder function Notification of a set calibration reminder Notification of an activated calibration reminder Stability check The stability check can be set to provide a warning when the rate of change of pH exceeds a certain threshold See chapter 6 1 3 for setting or changing the stability check Notification of a set stability check Notification of ...

Page 11: ...er Take sample Send data etc 3 2 6 Main menu The meter s main menu has three icons Config Calibrate and Options Selecting one of these main menu icons will display the subsequent menu The Config submenu contains the general configuration options of the meter such as display language and time settings The Calibrate submenu contains all the functions and options related to the calibration of the pro...

Page 12: ... from the connected probe Pressing a key during the display off mode will not evoke any action other than reactivating the display To set or change the Display off setting Go to the Config menu and choose Power save Now select Display off Toggle the on off button and select the display off time between 1 and 60 minutes Confirm and apply with the Set button or exit with the Back button to discard a...

Page 13: ...display off time between 1 and 60 minutes Confirm and apply with the Set button or exit with the Back button to discard any changes Note For meters with logging capabilities SI600 the meter off function will be automatically disabled for the period of active logging Hence setting this function will not affect measurements during continuous logging ...

Page 14: ...hould be set manually To change the time and or set the 12 or 24 hour clock Go to the Config menu and select Time Toggle the 12 24 button to set the display into either a 12 or 24 hour clock notation Toggle the Hours and Minutes buttons to change the meter s current setting Confirm and apply with the Set button or exit with the Back button to discard any changes 4 3 Button sound When operating the...

Page 15: ...ing Confirm and apply with the Enter key or exit with the Back key to discard any changes 4 5 Language The language in which the Sentron SI meter displays menus and options can be changed into one of the five pre installed languages Dutch English French German and Spanish To change the language Go to the Config menu now select and enter the Language option Toggle and choose one of the available la...

Page 16: ... the number of calibration points can be found in section 5 1 The Sentron SI meter displays a calibration results at the end of each calibration and stores the calibration results in a report This report is available for review at a later time Please review section 5 4 for detailed information on accessing and interpreting calibration reports The Sentron SI meter can provide a warning as a reminde...

Page 17: ...libration a buffer should be available with a pH close to the point from which the deviations are to be measured 2 point calibration recommended for accurate pH measurements spanning 3 pH and quick measurements spanning 3 6 pH Examples If for instance measurement values are expected to lie between pH 7 and pH 10 a 2 point calibration would be appropriate A 2 point calibration would be performed wi...

Page 18: ...nly use the buffer set with which your meter is configured Only use fresh buffers for a calibration Make sure your buffer sets are at the same temperature range as your sample to be measured Before during and after calibration always clean and flush your probe Please see the probe manual for instructions on how to clean the probe Make use of the calibration reminder function to ensure calibrations...

Page 19: ...m a calibration Go to the Calibrate menu and choose Calibrate Now toggle and select number of calibration points Toggle and select the first calibration value to start with some cases require a second calibration value to be entered Follow the instructions provided by the meter and when done a calibration report is displayed Exit the calibration report with the Close button Successful calibrations...

Page 20: ... the Calibrate menu and choose Calibration report Exit the report with the Close button or remove the report with the Delete button The SI600 has the possibility to save review and send the last seven calibration reports to a PC To review a calibration report SI600 Go to the Calibrate menu and choose Calibration reports Now select Browse reports Choose and select one of the calibration reports in ...

Page 21: ...elect Send reports The message SENDING REPORTS will appear in the status bar during data transfer 5 4 4 Delete reports Reports can be deleted via the calibration reports menu The SI400 contains only the latest report Deleting this report will only delete the overview not the actual calibration values To delete an individual calibration report SI400 Go to the Calibrate menu and choose Calibration r...

Page 22: ... Calibrate menu and choose Calibration reports Now select Browse reports Choose and select one of the calibration reports in the list At the opened report select Delete Confirm the deletion with the Yes button or cancel and return with the No button To delete all calibration reports SI600 Go to the Calibrate menu and choose Calibration reports Now select Delete all reports Confirm the deletion wit...

Page 23: ...e displayed value from the buffer solution value will provide an indication if and how much drift occurred during the measurements If this drift is too large it may be necessary to repeat the measurements with intermediate calibrations To set or change the calibration reminder Go to the Calibrate menu and choose Calibration reminder Toggle the on off button and select the calibration reminder time...

Page 24: ...ed meters such as the SI600 have the option of changing the buffer set The SI600 supports besides the standard Sentron buffer set also DIN NIST and JIS buffer sets It is not possible to create a user defined buffer set To change the buffer set Go to the Calibrate menu now select and enter the Buffer selection option Toggle and choose one of the available buffer sets Confirm and apply with the Ente...

Page 25: ...1 10 86 75 167 2 00 4 12 6 94 9 66 10 60 85 185 2 00 4 15 6 93 9 61 10 34 95 203 2 00 4 17 6 92 9 56 10 08 Table 1 SENTRON Buffer set Note that since the SENTRON buffer set is based on the NIST standard they are available from other manufacturers as well 5 6 2 DIN buffer set The table containing the temperature dependence of the DIN buffer set as it is used in the SI meter is presented in Table 2 ...

Page 26: ...85 8 90 11 11 85 185 1 78 4 18 6 87 8 88 10 91 95 203 1 81 4 23 6 89 8 83 10 73 Table 3 NIST Buffer set 5 6 4 JIS buffer set The table containing the temperature dependence of the JIS buffer set as it is used in the SI meter is presented in Table 4 below C F 1 2 3 4 5 5 41 1 67 4 01 6 95 9 39 13 21 15 59 1 67 4 00 6 90 9 27 12 81 25 77 1 68 4 01 6 86 9 18 12 45 35 95 1 69 4 02 6 84 9 10 12 14 45 1...

Page 27: ...the main screen A transparent indicator with the letter A indicates that an alarm is set When an alarm is activated an audible sound can be heard and the alarm notification turns on bright yellow on the main screen Notification of a set alarm Notification of an activated alarm 6 1 1 pH alarm The pH alarm can be set for a minimum andmaximum value When the pH value exceeds the maximum value or falls...

Page 28: ...check can be used to give a warning when a measurement has become unstable and rapid changes in the measured pH occur The definition of stable may vary between applications and industries therefore the SI meter has a user definable stability criterion When set the stability check displays a notification SC on the main screen when the measured pH value changes faster than the specified maximum rate...

Page 29: ... with the Set button or exit with the Back button to discard any changes 6 1 4 Disable all alarms When multiple alarms have been set and are no longer required they can be deactivated by a single Disable all alarms action To disable all alarms at once Go to the Options menu and choose Alarms Now select Disable all alarms Confirm and apply with the Yes button or discard and exit with the No button ...

Page 30: ...ent values to the meter s memory Sampled values can be looked up at a later time and or sent to a PC The sample will remain in the meter s memory even when batteries are replaced until it is erased The maximum number of samples which can be stored to the meter s memory is dependent on the meter type The SI400 can store up to 10 samples the SI600 can store up to 300 samples To take a sample Go to t...

Page 31: ... all existing samples names remain unchanged Itis notpossible to change the name of an existing sample on the meter therefore if a different sample prefix is desired it is necessary to set the desired sample name prefix before the sample is taken The follow up number is raised automatically for every unique name existing in the meter s memory starting with 000 Once a number is deleted or the memor...

Page 32: ...ed again at a later time or deleted To review and or delete a sample Go to the Options menu and choose Data acquisition Now select Sample Press Browse samples Choose and select one of the stored samples in the list Exit the sample overview with the Close button or to remove the sample by choosing the delete button At the opened sample overview select Delete Confirm the deletion with the Yes button...

Page 33: ...To start a log Go to the Options menu and choose Data acquisition Now select Log Press Set log Toggle the on off button and select the desired interval time Confirm and apply with the Set button or exit with the Back button to discard any changes Once the logging is setup and set a recording icon will appear on the main screen Notification of an activated log The maximum number of measurements per...

Page 34: ...n existing log file on the meter therefore if a different sample prefix is desired it is necessary to set the desired sample name prefix before starting logging data The follow up number is raised automatically for every unique name existing in the meter s memory starting with 000 Once a number is deleted or the memory has been emptied counting will start over with the lowest possible number To ch...

Page 35: ... a PC for further analysis see chapter 6 2 7 for details on sending data to a PC All stored log files can be viewed from the Browse logs menu When a log is viewed it can either be closed to be viewed again at a later time or deleted To review delete a sample Go to the Options menu and choose Data acquisition Now select Log Press Browse logs Choose and select one of the stored logs in the list Exit...

Page 36: ...heet program or a custom program for further analysis 6 2 8 Query meter values The meter s momentary measurement values can be queried from a connected PC as well SI600 only This allows integration of pH measurements into a software application running on a PC The meter must be connected to the PC using a USB cable and suitable software needs to be running to read write to a USB port To query the ...

Page 37: ... or logs can be done via the browse feature The overview of a single sample or log contains a Delete button to remove the displayed data see previous chapters Sampling and or Logging for deleting individual data To delete all stored data SI600 Go to the Options menu and choose Data acquisition Now select the Delete data menu Choose and select either to delete all logs delete all samples or delete ...

Page 38: ...iffer slightly To compensate this difference an offset bias can be set so that the measurement values are the same This setting can be done at either the glass electrode side or when the glass measurement equipment has only limited functions at the SI meter Note that with a fixed offset the displayed pH value is changed with respect to the calibrated values Therefore measurement in a buffer fluid ...

Page 39: ...eter requires very little maintenance In the event the meter becomes dirty it can be cleaned using a damp cloth To avoid having the USB connector become clogged by dirt keep the dust cover closed except when recharging or data transferring ...

Page 40: ...ee chapter 3 of probe manual Also be advised to plan for probe replacement Operating symptoms Possible cause Solution Fixed pH and or temperature value e g pH Temp 16 00 0 20 0 C Probe in general and or ISFET reference is not responding properly Re connect the probe Allign connector on white mark See chapter 2 2 of meter manual Contact distributor for possibilities on repair or replacement Slow ca...

Page 41: ...41 USB data connection issue USB cable connection fail Re connect the USB cable to meter and master computer i e Baud rate mismatch Set master to right baud rate 9600 8 N 1 ...

Page 42: ...42 9 Contact information SENTRON Europe B V Kamerling Onnesstraat 5 9351 VD Leek The Netherlands Tel 050 501 38 00 E mail info sentron nl Visit Sentron nl for more information and documentation ...

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