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SCHOTT Lab 850 Operating Manual Download Page 1

ba75890e01

11/2009

Lab 850

 

Operating manual

Laboratory pH meter

8

4

2

2

9

9

6

pH

°C

TP

Lab 850

Summary of Contents for Lab 850

Page 1: ...ba75890e01 11 2009 Lab 850 Operating manual Laboratory pH meter 8 4 2 2 9 9 6 pH C TP Lab 850...

Page 2: ...ate of purchase The instrument warranty covers manufacturing faults that are discovered within the warranty period The warranty does not cover components that are replaced during maintenance work e g...

Page 3: ...ponsibility that the product pH meter Lab 850 to which this declaration relates is in conformity with the specifications in the chapter Nous d clarons sous notre seule responsabilit que le produit pH...

Page 4: ...Lab 850 4 ba75890e01 11 2009...

Page 5: ...Measuring the ORP 21 4 4 Calibration 22 4 4 1 Calibration interval Int C 27 4 4 2 Automatic calibration AutoCal 28 4 5 Saving 31 4 5 1 Manual storage 31 4 5 2 Automatic storage at intervals AutoStore...

Page 6: ...transmission 50 4 8 Reset 51 4 8 1 Resetting calibration values 51 4 8 2 Resetting all meter settings 52 5 Maintenance cleaning disposal 53 5 1 Maintenance 53 5 1 1 Replacing the batteries 53 5 2 Clea...

Page 7: ...cial stability control function SC support your work with the pH meter Note The meter is also available as part of individual Sets of equipment You will find information on this and other accessories...

Page 8: ...alibration and measurement CAL CAL_ Call up calibration procedure Display calibration data SC SC_ Activate deactivate stability control Set interval for data transmission STO STO_ Store measured value...

Page 9: ...ation Measured value display Temperature display and further function indicators SET During calibration number of the buffer set BUFFER During calibration number of the buffer AutoCal Calibration with...

Page 10: ...cannot return any voltages or currents that are not allowed SELV and current circuit with current limiting Almost all sensors in particular SI Analytics GmbH sensors fulfill these conditions Connecto...

Page 11: ...the operators will know the necessary safety precautions to take when handling chemicals Safety instructions Safety instructions in this operating manual are indicated by the warning symbol triangle i...

Page 12: ...n Function and operational safety The smooth functioning and operational safety of the meter can only be guaranteed if the generally applicable safety measures and the specific safety instructions in...

Page 13: ...onditions for a lengthy period of time z is visibly damaged z no longer operates as described in this manual If you are in any doubt please contact the supplier of the instrument Obligations of the pu...

Page 14: ...Safety Lab 850 14 ba75890e01 11 2009...

Page 15: ...ing Perform the following activities z Insert batteries z Switch on the meter z Set the date and time z Connect the power pack for line power operation only Insert batteries 1 Open the battery compart...

Page 16: ...es or with the plug in power supply The plug in power supply supplies the mea suring instrument with low voltage 12 VDC This saves the batteries CAUTION The line voltage at the operating site must lie...

Page 17: ...ff interval see page 43 The energy saving feature is not active z if the meter is supplied via the power pack z if the automatic storing function is active see page 33 z if a PC is connected with comm...

Page 18: ...utomatically or manually z Configuration The system menu or a sensor menu with submenus settings and functions is displayed 4 2 2 Operation Keys The meter is operated via keys The keys can have differ...

Page 19: ...Note The pH meter automatically recognizes the type of the temperature sensor used Therefore you can connect electrodes with an NTC30 or Pt1000 The temperature measurement is absolutely essential for...

Page 20: ...K 1 Perform the preparatory activities according to page 19 2 Immerse the pH electrode in the test sample 3 Using MODE scroll as necessary until the measured parameter pH is displayed 8 4 2 2 9 9 6 pH...

Page 21: ...of a solution Note ORP electrodes are not calibrated However you can check ORP electrodes using a test solution 1 Perform the preparatory activities according to page 19 2 Immerse the ORP electrode i...

Page 22: ...k has expired and flashes Buffer sets for calibration You can use the buffer sets quoted in the table for an automatic calibration The pH values are valid for the specified temperature values The temp...

Page 23: ...57 25 C 11 Radiometer 1 678 4 005 7 000 9 180 25 C 12 Baker 4 006 6 991 10 008 25 C 13 Metrohm 3 996 7 003 8 999 25 C 14 Beckman 4 005 7 005 10 013 25 C 15 Hamilton Duracal 4 005 7 002 10 013 25 C 16...

Page 24: ...ts mV or pH AutoCal is adapted to the permanently programmed buffer solutions as a fully automatic single two or three point calibration The buffer solutions are automatically recognized by the meter...

Page 25: ...ration The zero point and slope are evaluated separately The worse evaluation of both is taken into account The evaluation appears on the display as the CalClock and in the calibration record 16 09 20...

Page 26: ...k Calibra tion record Zero point mV Slope mV pH 1 Switch on the meter with On Off 2 Connect a pH electrode to the meter 3 Keep the buffer solutions ready 4 Adjust the temperature of the solutions and...

Page 27: ...specified calibration interval Int C has expired the outer ring of the CalClock flashes It is still possible to measure Note To ensure the high measuring accuracy of the meter calibrate after the cali...

Page 28: ...uffer set is displayed SET 1 16 The first buffer BUFFER 1 of the buffer set SET_x is requested 2 If necessary set the temperature of the buffer solution with 3 Immerse the pH electrode in the first bu...

Page 29: ...point calibration 8 5 2 2 1 C TP AutoCal pH SET BUFFER 5 Thoroughly rinse the electrode with distilled water 6 If necessary set the temperature of the second buffer solution with 7 Immerse the pH elec...

Page 30: ...fers to the Nernst slope of 59 2 mV pH at 25 C 100 x determined slope Nernst slope The unit of zero point and slope can be permanently changed in the measurement settings see page 45 9 Thoroughly rins...

Page 31: ...ing procedure manual or automatic You can transmit measured values datasets to the data memory in two ways z Store manually STO z Switch on AutoStore Int 1 STO_ 4 5 1 Manual storage You can transmit a...

Page 32: ...ID number 1 9999 4 Confirm with OK The dataset is stored The meter switches to the measuring mode 1 0 0 0 pH Store Ident 2 9 9 6 z press OK to store the current measured value The oldest measured valu...

Page 33: ...Int 1 is OFF By this the AutoStore function is switched off To switch the function on set an interval 5 s 10 s 20 s 30 s 1 min 2 min 5 min 10 min 20 min 30 min 60 min Note When the AutoStore function...

Page 34: ...ry of the ID number is displayed 5 Set the required ID number with 6 Confirm with OK The meter switches to the measured value display and starts the measuring and storing procedure AutoStore flashes o...

Page 35: ...isp measurement datasets is displayed 3 Press OK to display the dataset that was last stored The memory location of the dataset is displayed for approx 2 s then the respective temperature appears z pr...

Page 36: ...displayed you can 1 Open the memory menu with RCL 2 If necessary scroll with RCL until Sto disp or Sto prt is displayed 3 Press RCL_ to display the Clr All function 4 Press OK to erase the entire cont...

Page 37: ...being displayed z press to switch over the unit of the slope Slo while the slope is being displayed 1 Press CAL_ to display the calibration data The following data is displayed consecutively for 10 s...

Page 38: ...meter software The RS232 interface enables to transmit data to an external printer Note The relevant interface cable has to be connected if you want to download data to an interface USB or RS232 CAUT...

Page 39: ...Simultaneously with every manual storage process see page 31 Automatic at intervals z With SC_ Then you can set the transmission interval Int 2 page 40 z Simultaneously with every automatic storage p...

Page 40: ...loading calibration data 4 6 5 RS232 interface 1 Press SC_ to open the setting of the Int 2 interval 2 If necessary set an interval with 3 Close the setting with OK The download to the interface takes...

Page 41: ...ing data with a PC The data is transmitted after the meter is connected to the RS232 serial interface of a PC Note More detailed information can be found in the MultiLab pilot software operating manua...

Page 42: ...set for pH calibration Set 1 16 Display of the buffer during calibration pH nominal value or measured voltage value in mV Unit of the value for the slope mV pH or Unit of the value for the zero point...

Page 43: ...0 2400 4800 9600 Switch off interval t Off 10 20 30 40 50 min 1 2 3 4 5 10 15 20 24 h Date Day Month Any Date Year Any Time Time Any 1 Open the menu for system settings with OK_ The first system setti...

Page 44: ...The month display flashes 8 Set the current month with 9 Confirm with OK Year the setting of the year is displayed 10 Set the year with 11 Confirm with OK The setting of the time is displayed The hour...

Page 45: ...on BUFFER pH buffer nominal value U electrode voltage Unit of the value for the slope SLO mV pH Unit of the value for the zero point ASY pH mV Resolution rES HI 0 001 Lo 0 01 Temperature unit UnIt C F...

Page 46: ...pe SLO 4 Using select the display during calibration pH or U 5 Confirm with OK SLO the unit of the value for the slope mV pH or is displayed H p F F U b pH AutoCal 6 Using select the unit for the slop...

Page 47: ...Resolution rES 8 Using select the unit for the zero point 9 Confirm with OK rES the setting of the resolution is displayed Y S A pH mV 10 Using toggle between Hi 0 001 and Lo 0 01 11 Confirm with OK...

Page 48: ...Int C 12 Using toggle between C and F 13 Confirm with OK Int C the setting of the calibration interval is displayed C o t i n U C TP 14 Set the interval with 15 Confirm with OK The measurement setting...

Page 49: ...Int 1 OFF 5 s 10 s 20 s 30 s 1 min 2 min 5 min 10 min 20 min 30 min 60 min 1 Press STO_ to open the setting for the storage interval Int 1 the setting of the storage interval is displayed 2 Press to...

Page 50: ...transmission interval Data transmission interval Int 2 OFF 5 s 10 s 20 s 30 s 1 min 2 min 5 min 10 min 20 min 30 min 60 min 1 Press SC_ to open the setting for the transmission interval Int 2 the sett...

Page 51: ...measuring system is not calibrated after a reset Before measuring recalibrate the meter Resetting calibration values Zero point pH 7 000 0 mV Slope 100 59 2 mV pH 1 Press On Off_ to open the menu for...

Page 52: ...after a reset Before measuring recalibrate the meter Calibration values page 51 System settings page 43 Measurement settings page 45 1 Switch on the meter with On Off The display test appears briefly...

Page 53: ...ure that the poles of the batteries are the right way round The signs on the batteries must correspond to the signs in the battery compartment Only use leakproof alkaline manganese batteries 1 Open th...

Page 54: ...nt out in a protective transport packing We recommend Keep the packing material The original packing protects the instrument against damage during transport 5 4 Disposal Batteries This note refers to...

Page 55: ...broken Replace the electrode Gel electrolyte dried out Replace the electrode Cause Remedy No electrode connected Connect the electrode Setting time during calibration too long Adjust temperature if n...

Page 56: ...use Remedy pH electrode Junction contaminated Clean junction Membrane contaminated Clean membrane Test sample pH value not stable Measure with air excluded if necessary Temperature not stable Adjust t...

Page 57: ...lectrode Temperature difference between buffer and test sample too high Adjust temperature of buffer or sample solutions Measurement procedure not suitable Follow special procedure Cause Remedy Operat...

Page 58: ...What to do if Lab 850 58 ba75890e01 11 2009...

Page 59: ...C 65 C Operation 0 C 55 C Climatic class 2 Power supply Batteries 4 x 1 5 V alkali manganese batteries Type AA Operational life Approx 1000 operating hours Power pack charging device FRIWO FW7555M 09...

Page 60: ...tion of the legally binding German version Guidelines and norms used EMC EC guideline 2004 108 EC EN 61326 1 Class B FCC Class A Instrument safety EC guideline 2006 95 EC EN 61010 1 ANSI UL 61010 1 CA...

Page 61: ...resolution Variable Measuring range Resolution pH 2 000 19 999 2 00 19 99 0 001 0 01 U mV 999 9 999 9 2000 2000 0 1 1 T C 5 0 120 0 0 1 T F 23 0 248 0 0 1 Manual temperature input Variable Range Incr...

Page 62: ...Technical data Lab 850 62 ba75890e01 11 2009 Stand October 30 2009 Translation of the legally binding German version...

Page 63: ...he display or when dealing with the instrument Specialist terms The glossary briefly explains the meaning of the specialist terms However terms that should already be familiar to the target group are...

Page 64: ...O DO IF Err1 Overflow Display range exceeded Err2 Err4 Error message see WHAT TO DO IF InI Initialization Resets individual basic functions to the status they had on delivery LoBat Low Battery batteri...

Page 65: ...easurable electromotive force of an electrode in a solution It equals the sum of all the galvanic voltages of the electrode Its dependency on the pH results in the electrode function which is characte...

Page 66: ...ing substances dissolved in water if these substances become effective on an electrode surface e g a gold or platinum surface Reset Restoring the original condition of all settings of a measuring syst...

Page 67: ...Merck KGaA Mettler Toledo Mettler Toledo Fisher Fisher Scientific Company Fluka Fluka AG Radiometer Radiometer Baker Mallinckrodt Baker Inc Metrohm Metrohm AG Beckman Beckman Instruments Inc Hamilton...

Page 68: ...Lists Lab 850 68 ba75890e01 11 2009...

Page 69: ...g 15 Interval Calibration 27 K Keys 8 L LoBat 56 M Measurement accuracy 27 MultiLab pilot 41 O Operation location 17 Operational safety 12 ORP electrode 21 ORP voltage 21 P pH buffer sets 22 Precautio...

Page 70: ...Lists Lab 850 70 ba75890e01 11 2009...

Page 71: ...e Proceed as follows After switching the meter off and on you can check whether the meter has taken over the new software version see page 57 1 Connect the Lab 850 to a serial interface COM port of th...

Page 72: ...Lab 850 72 ba75890e01 11 2009...

Page 73: ...SI Analytics GmbH Postfach 2443 D 55014 Mainz Hattenbergstr 10 D 55122 Mainz Email support Telefon 49 0 61 31 66 5111 Telefax 49 0 61 31 66 5001 si analytics com Internet www si analytics com...

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