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Cond 730

Abbreviations

Conductivity value

ABS

Plastic housing

AutoRead (drift control)

ARng

Automatic range switching
Measuring instrument measures with high-
est resolution

AutoStore

Automatic storing

Baud

Baud rate

Cell constant cm

-1

Cal

Calibration

CELL

Cell constant

disp

Display
Output of the data storage on the display

Error message
(see chapter 6 W

HAT TO DO IF

...)

Ident

I. D. number

InI

Initialization
Resets individual basic functions to
the status they had on delivery

Int

Interval

Lin

Linear temperature compensation

LoBat

Low Battery
Batteries are almost empty

nLF

Non-linear temperature compensation

OFL

Overflow
Display range exceeded

Sal

Salinity

SELV

Safety Extra Low Voltage

Sto Clr

Clear storage

Содержание inoLab Cond 730

Страница 1: ......

Страница 2: ...of purchase The instrument warranty extends to manufacturing faults that are determined within the period of warranty The warranty excludes components that are replaced during maintenance such as batt...

Страница 3: ...g transmitting measured values 24 4 3 Determining setting up the cell constant C 25 4 3 1 Determining the cell constant calibrating 25 4 3 2 Setting the cell constant manually 29 4 4 Setting up the te...

Страница 4: ...0 4 5 Maintenance cleaning disposal 59 5 1 Maintenance 59 5 1 1 Changing the batteries 60 5 1 2 Replacing the roll of printer paper 61 5 2 Cleaning 62 5 3 Disposal 62 6 What to do if 63 7 Technical da...

Страница 5: ...ated printer enables the measurements to be documented in compliance with GLP The proven procedures to determine or set up the cell con stant support your work with the conductivity meter Note The mea...

Страница 6: ...r operation online 4 Printer on off 5 Paper feed line feed Only with the printer being off Print LED lights up red 6 Reduce values scroll 7 Confirm inputs start AutoRead 8 Increase values scroll 9 Sto...

Страница 7: ...es or currents SELV and circuit with current limiter Almost all commercial measuring cells especially WTW measuring cells meet these require ments Connectors 1 Conductivity measuring cell 2 RS 232 int...

Страница 8: ...Overview Cond 730 8...

Страница 9: ...or use in the lab oratory Thus we assume that as a result of their professional train ing and experience the operators will know the necessary safety precautions to take when handling chemicals Symbol...

Страница 10: ...ory in a safe and secure technical condition Function and operational safety The smooth functioning and operational safety of the instru ment can only be guaranteed if the generally applicable safety...

Страница 11: ...for a lengthy period of time the instrument is visibly damaged the instrument no longer operates as described in this manual If you are in doubt contact the supplier of the instrument Obligations of t...

Страница 12: ...Safety Cond 730 12...

Страница 13: ...display test appears briefly on the display The measuring instrument then switches automatically to the setting of the baud rate 3 Press the g key repeatedly until the date flashes on the display 4 S...

Страница 14: ...on site must lie within the input voltage range of the original plug in power supply unit see chapter 7 TECHNICAL DATA Caution Use original plug in power supplies only see chapter 7 TECHNICAL DATA 12...

Страница 15: ...o perform measurements without a plug in power supply However the functions of the integrated printer can only be used with connected plug in power sup ply 2 Connect the original WTW plug in power sup...

Страница 16: ...Commissioning Cond 730 16...

Страница 17: ...f the AutoStore function is active if a PC is connected if the recorder cable is connected if the printer cable is connected for external printers 1 Place the instrument on a flat surface and protect...

Страница 18: ...ed 2 Press the g key The previously selected cell constant ist displayed e g 0 475 cm 1 3 To return to the measuring mode press the m key when the correct cell constant ist displayed 4 If a different...

Страница 19: ...dapter available at WTW Note The conductivity meter automatically recognizes the type of the temperature probe used As a result you can connect electrodes with the NTC30 or Pt1000 The temperature meas...

Страница 20: ...nt value can be terminated at any time by pressing g 1 Call up the measuring mode by pressing m 2 Activate the AutoRead function by pressing a The current measured value is frozen Hold function 3 Star...

Страница 21: ...ents or mea surements of the specific resistance Conductivity Specific resistance 1 Perform the preparatory activities according to section 4 2 2 Immerse the conductivity measuring cell into the test...

Страница 22: ...ccording to section 4 2 2 Immerse the conductivity measuring cell into the test sample 3 Press the m key repeatedly until Sal appears in the status line The salinity value of the sample appears on the...

Страница 23: ...measuring cell into the test sample 3 When measuring with an integrated temperature probe continue with step 4 When measuring without temperature probe Determine the temperature of the test sample us...

Страница 24: ...e data transmission Int 2 see page 47 After expiry of the selected interval the current data record is sent to the printer interface Switch on AutoStore Int 1 see page 38 After expiry of the selected...

Страница 25: ...e the cell constant of the conductivity mea suring cell in the range 0 450 0 500 cm 1 or 0 800 1 200 cm 1 by calibrating in the control standard or set it up manually in the range 0 250 2 500 cm 1or 0...

Страница 26: ...shing 4 Immerse the measuring cell into the 0 01 mol l KCL control standard 5 Press the g key If no temperature probe is connected enter the current temperature of the solution using 82 and confirm wi...

Страница 27: ...ll up the calibration protocol by outputting the data storage section 4 5 3 Note You can automatically print out a calibration protocol after the calibration To do so switch on the printer Print LED l...

Страница 28: ...rval expires Setting the calibration interval The calibration interval Int 3 is set to 180 days in the facto ry The interval can be changed 1 999 days 1 Switch off the instrument 2 Press m and hold do...

Страница 29: ...he measuring cell You can set the the cell constant manually as follows Setting the fixed cell constant 0 010 cm 1 1 Press the c key repeatedly until CELL appears on the display 2 Press the g key 3 Pr...

Страница 30: ...appears on the display 2 Press the g key 3 Press the c key repeatedly until a cell constant in the range 0 090 0 110 cm 1 appears 4 Set the cell constant to be used with 82 e g 0 105 cm 1 5 To return...

Страница 31: ...ppears on the display 2 Press the g key 3 Press the c repeatedly until until a cell constant in the range 0 250 2 500 cm 1 appears 4 Set the cell constant to be used with 82 e g 0 614 cm 1 5 To return...

Страница 32: ...e compensation Lin with a coeffi cient that can be set in the range 0 001 3 000 K no temperature compensation Note ips Select the following temperature compensations to work with the test samples give...

Страница 33: ...tion To select the non linear temperature compensation proceed as follows 1 Press the c key repeatedly until LF tc appears on the display 2 Press the g key 3 Press the c key repeatedly until nLF appea...

Страница 34: ...proceed as follows 1 Press the c key repeatedly until LF tc appears on the display 2 Press the g key 3 Press the c key repeatedly until the adjustable linear temperature coefficient appears on the di...

Страница 35: ...ature compensation proceed as fol lows 1 Press the c key repeatedly until LF tc appears on the display 2 Press the g key 3 Press the c key repeatedly until the following display appears 4 The temperat...

Страница 36: ...ocation Date Time Measured value Temperature I D number You can transmit measured values data records to the data storage in 2 ways Manual storage Switching on the AutoStore function Int 1 see page 38...

Страница 37: ...y changes to the input of the I D number 3 Enter the required I D number 1 999 by pressing 82 4 Confirm with g The instrument changes to the measuring mode Store the current measured value The oldest...

Страница 38: ...the AutoStore function is switched off To switch the function on set up a time interval 5 s 10 s 30 s 1 min 5 min 10 min 15 min 30 min 60 min Note If the AutoStore function is active the setting of t...

Страница 39: ...ble for your measurements backup the data storage see page 40 and clear the data storage see page 46 6 Confirm with g The prompt for the I D number appears on the display 7 Press 82 to set the require...

Страница 40: ...ng off the AutoStore Switch off the AutoStore function by Setting the storage interval Int 1 to OFF or Switch the conductivity meter off and on again 4 5 3 Outputting the data storage The contents of...

Страница 41: ...e of the data record appears on the display Stored data records are displayed together with the RCL display indicator Display further parameters of the data record I D no date time memory location Pre...

Страница 42: ...g key A measured value appears on the display The I D number of the data record appears for approx 2 s 3 After 2 s the respective temperature of the data record appears on the display 4 Select the par...

Страница 43: ...il Sto SEr appears on the display 2 Press the g key The protocol of the last calibration is transmitted to the printer RS interface In the meantime Sto CAL appears on the display Following the calibra...

Страница 44: ...ef25 Cell constant Cell Const Probe evaluation Probe CALIBRATION PROTOCOL 14 04 99 11 37 Device No 99990000 CALIBRATION CONDUCTIVITY Cal Time 14 04 99 11 37 Cal Interval 180d Cal Std 0 01 mol l KCL 23...

Страница 45: ...ing storage Number of the storage location No Date time of measurement Measured value unit mS cm C F Automatic manual temperature measurement Tauto Tman Temperature compensation nLF Tref Cell constant...

Страница 46: ...ity meter automatically changes to the measuring mode In order to delete all the data records proceed as follows Note The calibration data remain in the storage and can be called up via the calibratio...

Страница 47: ...face see below The Output data store function page 40 is used to output calibration data and stored measured values to the printer interface The analog recorder output page 49 is used to output measur...

Страница 48: ...rformed according to the setting of the storage interval Int1 Set the storage interval Int 1 to OFF to activate the data transmission interval Int 2 Note You can also set the data transmission interva...

Страница 49: ...pends on the mea sured parameter and the measuring range Measuring range Voltage Resolution 0 000 1 999 S cm 0 1999 mV 1 mV 0 00 19 99 S cm 0 1999 mV 1 mV 0 0 199 9 S cm 0 1999 mV 1 mV 0 1999 S cm 0 1...

Страница 50: ...switches automatically to RS232 Note The RS232 interface is not galvanically isolated If it is connected to an earthed PC printer measurements cannot be made in earthed media as this would give incor...

Страница 51: ...ultiLab pilot software you can record and evaluate measuring data with a PC The data is trans mitted after the measuring instrument is connected to the RS232 serial interface COM interface of a PC Not...

Страница 52: ...the m key Baud rate 1200 2400 4800 9600 Data transmission inter val Int 2 OFF 5 s 10 s 30 s 1 min 5 min 10 min 15 min 30 min 60 min Calibration interval Int 3 1 180 999 d AutoRange ARng yes no TREF 2...

Страница 53: ...g Int 2 appears on the display 6 Set up the required time interval by pressing 82 7 Confirm with g Int 3 appears on the display 8 Set up the required time interval by pressing 82 9 Confirm with g ARn...

Страница 54: ...1 Confirm with g t25 appears on the display 12 With 82 select between t25 and t20 13 Confirm with g LF appears on the display ARng AutoRange Reference temperature 14 With 82 select between S cm and M...

Страница 55: ...17 Confirm with g The date flashes on the display Temperature unit 18 Set today s date by pressing 82 19 Confirm with g The date month flashes on the display 20 Set the current month by pressing 82 2...

Страница 56: ...Confirm with g The hours flash on the display 24 Set the current time by pressing 82 25 Confirm with g The minutes flash on the display 26 Set the current time by pressing 82 27 Confirm with g The ins...

Страница 57: ...e calibration data are lost After the parameters have been reset cali brate Configuration parameters The following configuration parameters InI are reset to the values they had on delivery Measuring m...

Страница 58: ...o retain settings 4 Confirm with g The instrument changes to the configuration parameters 5 Toggle between no and yes by pressing 82 yes reset configuration parameters no retain settings 6 Confirm wit...

Страница 59: ...aintenance The maintenance tasks are restricted to the following activi ties replacing the batteries and replacing the roll of printer paper Note See the relevant operating manual of the measuring cel...

Страница 60: ...to the signs on the batteries Only use leakproof alkaline manganese batteries 1 Open the battery compartment 1 on the underside of the instrument 2 Remove the four batteries from the battery compartme...

Страница 61: ...et You can also use HQ thermal paper that remains legible for at least 10 years only on the Cond 730 with integrated printer 1 Switch off the printer Print LED lights up red 2 Open the lid of the prin...

Страница 62: ...instrument against damage during transport Batteries This note refers to the battery regulation that applies in the Federal Republic of Germany We would ask end consum ers in other countries to follow...

Страница 63: ...lean measuring cell if necessary replace it Unsuitable calibration solution Check calibration solutions Cause Remedy Batteries almost depleted Replace batteries see section 5 1 1 CHANGING THE BATTERIE...

Страница 64: ...of the WTW service department Press the a key and switch on instrument The software version is displayed Cause Remedy Timeout of the interface Check connected instrument Cause Remedy All 800 memory lo...

Страница 65: ...ction only on the Cond 730 with integrated printer Cause Remedy AutoStore function Int 1 or Data transmission Int 2 is switched on Switch off functions Cause Remedy Printer is switched on Switch off p...

Страница 66: ...What to do if Cond 730 66...

Страница 67: ...999 only with 0 010 cm 1 cell constant 0 00 19 99 only with 0 010 cm 1 constant and 0 090 0 110 cm 1 cell constant 0 0 199 9 0 1999 0 00 19 99 0 0 199 9 0 500 Spec resistance M cm 0 000 1 999 0 00 19...

Страница 68: ...sation Accuracy Test sample temperature 0 5 10 C 75 C the accuracy percentage always refers to the measured value SAL Range 0 0 42 0 Accuracy Test sample temperature 0 1 5 C 25 C 0 2 25 C 30 C TDS mg...

Страница 69: ...0 450 0 500 0 800 1 200 TREF C 20 25 Manual C 5 100 Length mm 230 Width mm 300 Height mm 70 Weight kg Approx 1 3 without plug in power supply unit Cell constant to be set Cell constant calibrated Ref...

Страница 70: ...le is connected Signal range 0 1 999 V for the range 0 1999 digits Accuracy 0 5 of diplayed value 0 1 saturation or 0 5 of displayed value 0 01 mg l Internal resistance 5 ohms current limitation to ma...

Страница 71: ...er supply unit Euro US UK Australian plug FRIWO FW7555M 09 15 1432 Friwo Part No 1822089 Input 100 240 V 50 60 Hz 400 mA Output 9 V 1 5 A EMC E C guideline 89 336 EEC EN 61326 1 1997 EN 61000 3 2 A14...

Страница 72: ...ainst harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance w...

Страница 73: ...ons explains abbreviations that appear on the display or when dealing with the instrument Specialist terms The glossary briefly explains the meaning of the specialist terms However terms that should a...

Страница 74: ...n CELL Cell constant disp Display Output of the data storage on the display E3 Error message see chapter 6 WHAT TO DO IF Ident I D number InI Initialization Resets individual basic functions to the st...

Страница 75: ...a storage to the printer interface Tauto Automatic temperature measurement TC Temperature coefficient TDS Total dissolved solids TP Temperature Probe Temperature measurement active Tref 20 T20 Referen...

Страница 76: ...ell constant Linear factor describing the geometrical dimensions of a measuring cell and its electrodes With the value of the cell constant you can roughly descri be the application range of a conduct...

Страница 77: ...C The temperature has a very strong impact on the electrical conductivity To be able to compare measured values it is necessary to temper or convert the test sample to a refer ence temperature Test sa...

Страница 78: ...Lists Cond 730 78...

Страница 79: ...date setting 13 55 display 7 drift control 20 E energy saving feature 17 error messages 63 I initial commissioning 13 initialize 57 interval calibration Int 3 28 data transmission Int 2 47 storing Int...

Страница 80: ...ty 49 salinity measurement 22 scope of delivery 13 sockets 7 Specific resistance 21 storing 36 switching on 13 T TDS 23 49 technical data 67 temperature compensation 32 linear 34 non linear 33 setting...

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