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Operation

handylab multi 12

58

4.8

Configuration

You can adapt the handheld meter to your individual requirements. To
do this, the following parameters can be changed (the status on deliv-
ery is marked in bold):

Note
You can leave the configuration menu at any time with <M> . The pa-
rameters that have already been changed are stored.

Baudrate

Baud rate

1200, 2400, 4800, 9600

Air pressure display

Current value in mbar
(no input possible)

Calibration
intervals

– pH 1 ... 7 ... 999 dInt 3

– O

2

1 ... 14 ... 999 dInt 4

–

: 1 ... 180 ... 999 dInt 5

Date/time

Any

1

Switch off the measuring instrument.

2

Press the <M> key and hold it down.

3

Press the <ON/OFF> key.
The display test appears briefly on the display. The measuring
instrument then switches automatically to the setting of the
baud rate.

4

Select the required Baud rate with <

> <

>.

5

Confirm with <RUN/ENTER>. CAL dISP appears on the dis-
play.

Day.Month No.

Time

1

2

M

m

%

mg/l

cm

S/

cm

S

mbar

mV/pH

t

n

Store

Auto

LoBat

Tref25

nLF

/

K

%

RCL

Sal

°

AR

TP

C

cm

1/

°

F

ARng

Cal

Lin

Tref20

Sal

TDS

O

UpH

AutoCal DIN

AutoCal TEC

Ident

Year

0

0

8

4

Baud

«
...
56
57
58
59
60
...
»

Содержание handylab multi 12

Страница 1: ...ba75371e01 11 2002 Operating manual ba75371e handylab multi 12 AR M O 6 7 1 9 2 7 O C mg l ARng TP RCL STO CAL pH Dissolved Oxygen Conductivity Measuring Instrument ...

Страница 2: ...ee the instrument described for 3 years from the date of purchase The instrument warranty covers manufacturing faults that are discov ered within the warranty period The warranty does not cover compo nents that are replaced during maintenance work e g batteries The warranty claim extends to restoring the instrument to readiness for use but not however to any further claim for damages Improper han ...

Страница 3: ... 4 3 Dissolved oxygen 28 4 3 1 General information 28 4 3 2 Measuring the D O concentration 29 4 3 3 Measuring the D O saturation 30 4 3 4 AutoRead AR Drift control 31 4 3 5 D O calibration 32 4 3 6 Salt content correction 35 4 4 Conductivity 36 4 4 1 General information 36 4 4 2 Measuring the conductivity 38 4 4 3 Measuring the salinity 38 4 4 4 AutoRead AR Drift control 39 4 4 5 Determining the ...

Страница 4: ...4 7 3 Remote control 57 4 8 Configuration 58 4 9 Reset 62 5 Maintenance cleaning disposal 65 5 1 Maintenance 65 5 2 Cleaning 66 5 3 Disposal 66 6 What to do if 67 6 1 pH system messages 67 6 2 Oxi system messages 69 6 3 Conductivity system messages 70 6 4 General errors 71 7 Lists 73 ...

Страница 5: ...y The handylab multi 12 handheld meter provides the maximum degree of operating comfort reliability and measuring certainty for all applica tions The proven MultiCal and OxiCal calibration procedures and the pro cedures to determine set up the cell constant support you in your work with the meter The special AutoRead function enables precise mea surements 1 Keypad 2 Display 3 Jack field AR M O 6 7...

Страница 6: ... Save a measured value STO Switch measuring instrument on off ON OFF Calibrate the currently set measured variable CAL Display transmit measured values RCL Activate deactivate the AutoRead function AR Select the measuring mode increase values scroll Select the measuring mode decrease values scroll Confirm entries start AutoRead output measured values RUN ENTER M STO CAL RCL AR RUN ENTER ...

Страница 7: ...obe 4 Plug in power supply unit 5 RS232 serial interface ARng Tref20 AutoCal DIN Lin TDS cm M F K Time Baud Day Month No Ident Year 8 8 8 8 8 8 C mg l TP 1 mV pH UpH Sal O S Tref25 nLF AutoCalTEC RCL Auto Store LoBat Cal AR 1 cmSal mbar S m cm Status display Meas value display Function and temperature display Sensor symbol 5 1 2 3 4 ...

Страница 8: ...s Note When a D O probe or a conductivity measuring cell with a temperature probe is connected the measuring instrument recognizes the probe or measuring cell and automatically switches to the oxygen measuring mode or conductivity measuring mode last selected As soon as the probe measuring cell is disconnected the instrument switches to the pH or ORP measuring mode ...

Страница 9: ...Width mm 80 Height mm 37 Weight kg approx 0 3 Type of protection IP 66 Protective class III GS cETLus CE Storage 25 C 65 C Operation 10 C 55 C Relative atmospheric humidity annual average 90 Measuring range Resolution pH 2 00 19 99 0 01 U mV 1999 1999 1 T C 5 0 105 0 0 1 pH after calibration 0 01 U mV 1 T C 0 1 Temperature input Manually C 20 130 mg l Measuring range I Resolution 0 19 99 0 01 0 19...

Страница 10: ...Temperature compensation 2 at 0 40 C T C 0 1 Salinity correction 0 70 0 SAL Air pressure correction Automatic through built in pressure sensor in the range 500 1100 mbar Measuring range Resolution µS cm 0 1999 1 mS cm 0 00 19 99 0 0 199 9 0 500 0 01 0 1 1 SAL 0 0 70 0 accord ing to the IOT table 0 1 T C 5 0 105 0 0 1 Nonlinear compensation Precision Temperature of material under test 0 5 0 C 35 C ...

Страница 11: ...AA Operational life approx 3000 operating hours Mains The following applies to all plug in power supplies Connection max overvoltage category II Plug in power supply with Euro plug FRIWO FW1199 11 7864 Friwo Part No 1762613 Input 230 V 50 Hz 5 6 VA Output 12 V 130 mA 1 56 VA Plug in power supply with US plug FRIWO FW1199 11 7880 Friwo Part No 1794043 Input 120 V 60 Hz 6 VA Output 12 V 150 mA Plug ...

Страница 12: ...idelines and norms EMC EEC guideline 89 336 EWG EN 61326 1 1997 EN 61000 3 2 1995 pr A14 2000 EN 61000 3 3 1995 FCC Class A Instrument safety EC guideline 73 23 EWG EN 61010 1 A2 1995 Climatic class VDI VDE 3540 Type of protection EN 60529 1991 ...

Страница 13: ...erating manual use the following safe ty instruction to indicate various types of danger Warning indicates instructions that must be followed precisely in order to avoid the possibility of slight injuries or damage to the instrument or the envi ronment Further notes Note indicates notes that draw your attention to special features Note indicates cross references to other documents e g operating ma...

Страница 14: ...nment the formation of condensate can lead to the faulty func tioning of the instrument In this event wait until the temperature of the instrument reaches room temperature before putting the instrument back into operation Safe operation If safe operation is no longer possible the instrument must be taken out of service and secured against inadvertent operation Safe operation is no longer possible ...

Страница 15: ...ess the ON OFF key The display test appears briefly on the display 3 Press the RUN ENTER key repeatedly until the date ap pears on the display 4 Set the date of the current day with 5 Confirm with RUN ENTER The date month flashes in the display 6 Set the current month with 7 Confirm with RUN ENTER The year appears on the display 8 Set the current year with 9 Confirm with RUN ENTER The hours flash ...

Страница 16: ... voltage 12 VDC This saves the batteries Warning The line voltage at the operating site must lie within the input voltage range of the original plug in power supply see section 1 6 TECHNICAL DATA Warning Use original plug in power supplies only see section 1 6 TECHNICAL DATA 1 Plug the jack 1 into the socket 2 of the measuring instru ment 2 Connect the original SCHOTT plug in power supply 3 to an ...

Страница 17: ...oth oxygen and conductivity measurements As a rule the measuring instrument is in the measuring range with the highest possible resolution If a measur ing range is exceeded AutoRange causes the measuring instrument to change automatically to the next higher measuring range The AutoRange function is always active with oxygen and conductivity measurements and cannot be switched off Note The measurin...

Страница 18: ...n earthed PC printer measurements cannot be per formed in earthed media as incorrect values would result The RS232 interface is not galvanically isolated 1 Connect the pH electrode to the measuring instrument If necessary press the M key repeatedly until the status dis play pH pH measurement or U measurement of the ORP voltage appears 2 Adjust the temperature of the buffer solutions or test soluti...

Страница 19: ...you can either disconnect the 2nd sensor and use the manual temperature input or use an electrode with a temperature probe If a temperature probe is connected it is indicated on the display by TP Note When calibrating without a temperature probe no TP display indicator displayed enter the current temperature of the respective buffer solu tion manually using the keys while keeping the RUN EN TER ke...

Страница 20: ...d temperature probe Options l Determine the current temperature using a thermometer and while keeping the RUN ENTER key depressed en ter this temperature value with l TP display indicator not displayed socket for the second probe is free Connect the second probe Oxi or Cond and immerse it in the same sample TP flashes the temperature is automati cally measured using the second probe Tref20 Lin Cal...

Страница 21: ...til a stable measured value is reached This measured value is transmitted to the interface 4 If necessary start the next AutoRead measurement with RUN ENTER 5 To terminate the AutoRead function Press the AR key 1 Perform the preparatory activities according to section 4 2 1 2 Submerse the Redox electrode in the sample 3 Press the keys until the U status display appears The ORP voltage mV of the sa...

Страница 22: ...nominal value or the current electrode voltage in mV The calibration can be terminated after the first buffer solution This corresponds to a single point calibration To do this the instru ment uses the Nernst slope 59 2 mV pH at 25 C and determines the asymmetry of the electrode AutoRead The calibration procedure automatically activates the AutoRead func tion The current AutoRead measurement can b...

Страница 23: ...02 03 01 14 19 Device No 12345678 Calibration pH Cal time 01 03 01 15 20 Cal interval 7d AutoCal TEC Tauto Buffer 1 2 00 Buffer 2 4 01 Buffer 3 7 00 Buffer 4 10 01 C1 184 1 mV 25 0 C C2 3 0 mV 25 0 C S1 59 4 mV pH ASY1 4 mV Display Asymmetry mV Slope mV pH 15 15 60 5 58 20 20 58 57 25 25 61 60 5 or 57 56 Clean the electrode according to the electrode operating manual 30 30 62 61 or 56 50 E3 Elimin...

Страница 24: ...ltage in mV Note Skip the steps 2 and 7 if you use a pH electrode with temperature probe or the temperature probe of a conductivity measuring cell or a D O probe Starting the calibration 1 Connect the pH electrode to the measuring instrument If necessary press the M key repeatedly until the status dis play pH pH measurement or U measurement of the ORP voltage appears 2 Keep the buffer solutions re...

Страница 25: ...lue is stable Ct2 appears pH mV TDS O U Tref20 Cal 8 S 1 Sal mg l 1 cmSal AutoCal DIN Lin Tref25 nLF RCL Auto Store LoBat ARng AR Time Baud Day Month No Ident Year mbar cm M F K S m cm 8 4 2 t 1 C TP pH C AutoCalTEC cm 3 7 F 0 Cal Tref20 Lin 0 Cal Tref25 ARng AutoCal DIN Tref25 Auto AutoCal DIN ARng Tref20 Lin F cm 1 1 cm AR AR RCL RCL O O UpH UpH Sal Sal Store Store Auto LoBat LoBat nLF nLF Sal S...

Страница 26: ...mbol shows the evaluation of the current calibration 11 Press the RUN ENTER key The value of the asymmetry mV appears on the display 1 TDS S F 0 Cal Tref20 Lin 0 Cal Tref25 ARng AutoCal DIN Tref25 Auto AutoCal DIN ARng Tref20 Lin F cm 1 1 cm AR AR RCL RCL O O UpH UpH Sal Sal Store Store Auto LoBat LoBat nLF nLF Sal Sal mg l mg l mV pH mV pH cm cm m m S S cm cm K K M M TDS 1 S mbar mbar Time Baud D...

Страница 27: ...27 12 Switch to the measuring mode with M Y A S 0 RCL Sal cm AutoCal DIN Time Day Month Sal Store AR 8 No Ident Tref20 Tref25 Year Baud cm C K TP M mbar 1 m mg l cm S TDS 6 Lin Cal 1 S O U nLF Auto LoBat ARng F 2 pH mV AutoCalTEC ...

Страница 28: ...t The RS232 interface is not galvanically isolated Preparatory activities Perform the following preparatory activities when you want to measure Note Incorrect calibration of D O probes will result in incorrect measured values Calibrate at regular intervals Temperature probe The D O probe has an integrated temperature probe that always mea sures the current temperature of the test sample 1 Connect ...

Страница 29: ...on the salt content correction 1 Perform the preparatory activities according to section 4 3 1 2 Immerse the D O probe in the test sample 3 Press the key repeatedly until the D O concentra tion in mg l appears on the display RCL cm cm M mS pH mV pH U TDS Tref20 Cal 8 S 1 Sal 1 cmSal AutoCal DIN Lin Tref25 nLF AutoCalTEC Auto Store LoBat AR Time Baud Day Month No Ident Year mbar F K 6 7 1 9 2 C TP ...

Страница 30: ... 1 2 Immerse the D O probe in the test sample 3 Press the key repeatedly until the D O saturation in appears on the display cm M cm 8 LoBat Time Baud Day Month No Ident Year mbar 1 S RCL AR Store Auto Cal F 1 K TDS UpH Sal mV pH S m cm Lin Tref25 Tref20 nLF AutoCal DIN AutoCalTEC 6 7 1 4 2 5 O C mg l TP Sal ARng Auto Sal mg l cm M cm 8 LoBat Time Baud Day Month No Ident Year mbar 1 S RCL AR Store ...

Страница 31: ...is frozen hold function 3 Start AutoRead with RUN ENTER AR flashes until a stable measured value is reached This mea sured value is transmitted to the interface 4 If necessary start the next AutoRead measurement with RUN ENTER 5 To terminate the AutoRead function Press the AR key 8 LoBat Time Baud Day Month No Ident Year Sal mbar 1 S RCL Store Auto Cal F 1 cm K TDS UpH Sal mV pH S m cm cm M Lin Tr...

Страница 32: ...or flashes The calibration process is fin ished when AR stops flashing Displaying the calibra tion data You can view the data of the last calibration on the display The pro ceeding is described on page 50 Printing the calibration protocol The calibration record contains the calibration data of the current cali bration You can transmit the calibration protocol to a printer via the se rial interface...

Страница 33: ...ws to calibrate the instrument Note The sponge in the air calibration vessel must be moist not wet Display Relative slope S 0 8 1 25 S 0 7 0 8 S 0 6 0 7 E3 Eliminate the error according to chapter 6 WHAT TO DO IF S 0 6 or S 1 25 1 Perform the preparatory activities according to section 4 3 1 2 Keep the air calibration vessel ready 3 Put the D O probe into the air calibration vessel 4 Press the CAL...

Страница 34: ...on see page 33 7 Switch to the measuring mode with M Auto ARng Sal mg l cm M cm 8 LoBat Time Baud Day Month No Ident Year mbar 1 S RCL AR Store F 1 K TDS UpH Sal mV pH S m cm Lin Tref25 Tref20 nLF AutoCal DIN AutoCalTEC 6 7 1 A L C O C TP Cal mg l 8 LoBat Time Baud Day Month No Ident Year Sal mbar 1 1 cm TDS UpH Sal mV pH S m cm cm M Lin Tref25 Tref20 nLF AutoCal DIN AutoCalTEC 6 7 1 8 8 0 O Cal A...

Страница 35: ...oceed is described in section 4 4 3 MEASURING THE SA LINITY on page 38 Entering the salt con tent Note How to switch on the salt content correction is described on page 29 1 Determine the salinity of the test sample any method see also section 4 4 3 MEASURING THE SALINITY on page 38 2 Press the CAL key repeatedly until Sal appears on the dis play 3 Enter the salt content with 4 Switch to the measu...

Страница 36: ...e reference temperature Tref can be switched between 20 C and 25 C It appears on the display as Tref20 or Tref25 To switch over the reference temperature see SWITCHING OVER THE REFERENCE TEMPERA TURE page 60 1 Connect a conductivity measuring cell to the measuring instru ment The instrument automatically switches over to conductiv ity measurement status display If the conductivity measuring cell i...

Страница 37: ...4 If you want to recalibrate the cell constant proceed according to section 4 4 5 DETERMINING THE CELL CONSTANT CALIBRATION IN THE CONTROL STANDARD O UpH Sal Store AR Auto AutoCal DIN AutoCalTEC LoBat Cal ARng Tref25 Tref20 Lin nLF Sal mg l mV pH cm TP mS cm cm 1 FC K M TDS 1 S mbar Time Baud Day Month No Ident Year P d S I RCL A L C L C S 1 LoBat Lin nLF Tref20 ARng AR TP FC K M mg l mV pH mS cm ...

Страница 38: ...ue appears on the dis play 1 Perform the preparatory activities according to section 4 4 1 page 36 2 Immerse the conductivity measuring cell in the test sample 3 Press the keys until the Sal status display appears The salinity value appears on the display AR 8 1 cm 1 K F RCL Cal Lin Tref20 LoBat M m Sal TDS S Auto Store Sal mbar mg l O UpH mV pH cm AutoCal DIN AutoCalTEC Time Baud Day Month No Ide...

Страница 39: ...ll up the or SAL measuring mode with M and or 2 Immerse the conductivity measuring cell in the test sample 3 Activate the AutoRead function with AR The current mea sured value is frozen hold function 4 Start AutoRead with RUN ENTER AR flashes until a stable measured value is reached This measured value is transmitted to the interface 5 If necessary start the next AutoRead measurement with RUN ENTE...

Страница 40: ...isplay indicator flashes The calibration process is fin ished when AR stops flashing Displaying the calibra tion data You can view the data of the last calibration on the display The pro ceeding is described on page 50 Printing the calibration protocol The calibration record contains the calibration data of the current cali bration You can transmit the calibration protocol to a printer via the se ...

Страница 41: ...75 1 cm without sensor symbol on the display In this case the measurement parameters are initialized see section 4 9 RESET 3 Immerse the conductivity measuring cell in the control standard solution 0 01 mol l KCI 4 Press the RUN ENTER key The AutoRead measurement to determine the cell constant starts The AR display indicator flashes until a stable signal is reached The cell constant determined is ...

Страница 42: ... IF 5 To return to the measuring mode Press the M key The de termined cell constant is taken over for the measurement S 1 LoBat Lin nLF Tref20 RCL ARng AR TP FC K M mg l mV pH mS cm Sal TDS Auto Store Sal mbar O UpH cm AutoCal DIN AutoCalTEC Time Baud Day Month No Ident Year 3 0 7 4 Cal cm 1 Tref25 A L C AR ...

Страница 43: ...n Default setting pH ORP Int 3 7 days Dissolved oxygen Int 4 14 days Conductivity Int 5 180 days 1 Switch off the measuring instrument 2 Press the M key and hold it down 3 Press the ON OFF key The display test appears briefly on the display After this the measuring instrument automatically switches over to configu ration 4 Press the RUN ENTER key repeatedly until Int 3 5 to gether with the require...

Страница 44: ...ues data records to the data storage in two ways l Save manually l Switch on AutoStore Int 1 see page 46 4 6 1 Saving manually You can transmit a measured value to the data storage as follows 1 Press the STO key The current number location number No of the next free stor age location appears under the current measured value on the display 2 Confirm with RUN ENTER The display switches to entering t...

Страница 45: ...t changes to the measuring mode No K TP C 4 2 Tref20 Lin Cal 8 1 S Sal O U mg l mV pH 1 cmSal AutoCal DIN Tref25 nLF AutoCalTEC RCL Auto LoBat ARng AR Time Baud Day Month Year mbar TDS cm M F S m cm 2 9 9 6 pH Store Ident Saving the current measured value The oldest measured value storage location 1 will be overwritten by this Press RUN ENTER Returning to the measuring mode without saving press an...

Страница 46: ...en the saving procedures with Selection 5 s 10 s 30 s 1 min 5 min 10 min 15 min 30 min 60 min 4 Confirm with RUN ENTER The number of free memory locations appears on the display 5 Confirm with RUN ENTER The prompt for the ID number appears on the display LoBat Tref25 nLF K RCL Sal AR TP C M m mg l cm S cm S 8 cm 1 F ARng Cal Lin Tref20 Sal TDS mbar O UpH mV pH AutoCal DIN AutoCalTEC Time Baud Day ...

Страница 47: ...is continued By this however temporal gaps in the re cording of the measured values will occur Switching off AutoStore Switch AutoStore off by l setting the save interval Int 1 to OFF or l switching the measuring instrument off and then on again 6 Set the required ID number with 7 Confirm with RUN ENTER The measuring instrument switches to the last active measur ing mode and start the measuring an...

Страница 48: ...cord is displayed for approx 2 s then the respective temperature appears Display further data of the data record ID number date time storage location Press RUN ENTER To toggle between two saved measured vari ables Press RUN ENTER M Advance one data record storage location Press Go back one data record storage location Press Store Auto Ident S 1 LoBat Tref25 nLF K Sal AR TP C M m mg l cm S cm cm 1 ...

Страница 49: ...t ap pears on the display After approx 2 s the temperature of the displayed measured value appears 1 Press the RCL key repeatedly until Sto SEr appears on the display 2 Press the RUN ENTER key The complete contents of the storage are transmitted to the in terface During the data transmission the instrument incre ments the storage numbers After the data transmission the instrument automatically swi...

Страница 50: ...7 46 7 11 mg l 17 8 C Tauto SAL 17 9 Ident 4 No 5 10 03 01 19 09 2 40 mS cm 25 3 C Tauto nLF Tref25 C 0 475 1 cm Ident 10 No 6 10 03 01 20 48 2 46 mS cm 25 6 C Tauto nLF Tref25 C 0 475 1 cm Ident 1 1 Press the RCL key repeatedly until CAL disp appears on the display Store Auto Ident S 1 LoBat Tref25 nLF K Sal AR TP C M m mg l cm S cm cm 1 F ARng Cal Lin Tref20 Sal TDS mbar O UpH mV pH AutoCal DIN ...

Страница 51: ...the relative slope of the D O probe Sal cm AutoCal DIN Day Month S Tref20 Cal Ident No Year Time Baud 1 TDS Sal Store AR Tref25 cm C K TP M mbar 1 m mg l cm S Lin O U nLF AutoCalTEC Auto LoBat ARng F O 9 4 pH L S RCL 5 mV pH Sal cm AutoCal DIN Time Day Month Sal Store AR 8 No Ident Tref20 Tref25 Year Baud cm C K TP M mbar 1 m mg l cm S TDS 6 Lin Cal 1 S O U nLF AutoCalTEC Auto LoBat ARng F Y 0 1 p...

Страница 52: ... cell constant 0 475 1 cm without probe symbol on the display In this case the measured parameters are ini tialized see section 4 9 RESET 6 With M you can switch back to the last active measuring mode Day Month Cal 4 8 S cm Sal O Store Auto Ident 1 LoBat nLF K AR TP C M m mg l S cm F ARng Lin Tref20 Sal TDS mbar UpH mV pH AutoCal DIN AutoCalTEC Time Baud No Year 0 8 C 4 7 RCL cm 1 Tref25 ...

Страница 53: ...P C M m mg l cm S cm cm 1 F ARng Cal Lin Tref20 Sal TDS mbar O UpH mV pH AutoCal DIN AutoCalTEC Time Baud Day Month No Year R C A L S E RCL CALIBRATION PROTOCOL 02 03 01 14 19 Device No 12345678 Calibration pH Cal time 01 03 01 15 20 Cal interval 7d AutoCal TEC Tauto Buffer 1 2 00 Buffer 2 4 01 Buffer 3 7 00 Buffer 4 10 01 C1 174 1 mV 25 0 C C2 133 3 mV 25 0 C S1 59 4 mV pH ASY1 4 mV Probe CALIBRA...

Страница 54: ...wise the measuring instrument automati cally switches to the last active measuring mode Proceed as follows to clear all data records Note The calibration data remain stored and can be called up 1 Switch off the measuring instrument 2 Press the STO key and hold it down 3 Press the ON OFF key The display test appears briefly on the display 4 Confirm the clearing process with RUN ENTER Pressing any o...

Страница 55: ...nction page 48 calibration data or saved measured values are output on the interface 4 7 1 Data transmission interval Int 2 The interval to the data transmission Int 2 determines the chronolog ical interval between automatic data transmissions After the selected interval expires the current data record is transmitted to the interface Setting the Data transmission interval The default setting for t...

Страница 56: ...he same time the data trans mission is performed according to the setting of the save interval Int 1 Set the save interval Int 1 to OFF to activate the Data transmission in terval Int 2 4 Confirm with RUN ENTER The measuring instrument switches to the last active measur ing mode ...

Страница 57: ...ion data on the PC printer Socket assignment 4 7 3 Remote control The handheld meter can be remotely controlled from a PC This re quires a communication kit communication cable communication program which is available upon request The instrument is then con trolled via commands that simulate keystrokes and request the current display contents Note A more detailed description is provided within the...

Страница 58: ...ut possible Calibration intervals pH 1 7 999 dInt 3 O2 1 14 999 dInt 4 1 180 999 dInt 5 Date time Any 1 Switch off the measuring instrument 2 Press the M key and hold it down 3 Press the ON OFF key The display test appears briefly on the display The measuring instrument then switches automatically to the setting of the baud rate 4 Select the required Baud rate with 5 Confirm with RUN ENTER CAL dIS...

Страница 59: ... M m mg l cm S cm cm 1 F ARng Cal Lin Tref20 Sal TDS mbar AutoCal DIN AutoCalTEC Time Baud Day Month No Year p C A L i s d pH pH 8 Confirm with RUN ENTER Int 3 and the measured variable pH appear on the display Baud 4 Day Month No Time 1 M m mg l cm S cm S mV pH t n Store Auto LoBat Tref25 nLF K RCL Sal AR TP C cm 1 F ARng Cal Lin Tref20 Sal TDS O UpH AutoCal DIN AutoCalTEC Ident Year 9 4 9 mbar P...

Страница 60: ...cm K TDS UpH Sal mV pH S m cm cm M Lin Tref25 Tref20 nLF AutoCal DIN AutoCalTEC 4 1 t 4 n O 1 d Time Cal 13 Set the required interval in days d with 14 Confirm with RUN ENTER The reference temperature set for conductivity measurements appears on the display O C TP ARng mg l LoBat Baud Day Month No Ident Year Sal mbar S RCL AR Store Auto F 1 cm K TDS UpH Sal mV pH S m cm cm M Lin Tref25 Tref20 nLF ...

Страница 61: ...r appears on the display 21 Set the current year with 22 Confirm with RUN ENTER The hours flash on the display 23 Set the current time with 24 Confirm with RUN ENTER The minutes flash on the display 25 Set the current time with 26 Confirm with RUN ENTER The measuring instrument switches to the last active measur ing mode S 1 M m mg l cm S cm mbar mV pH D i s Store Auto Ident LoBat Tref25 nLF K Sal...

Страница 62: ...s lost when the measuring parameters are re set Recalibrate after performing a reset Configuration parameters The following configuration parameters InI are reset to the delivery status Measuring mode pH Asymmetry 0 mV Slope 59 16 mV Measuring mode D O concentration Relative slope 1 00 Salinity value 0 0 Salinity function Off Measuring mode Cell constant 0 475 cm 1 fixed Baud rate 4800 Display dur...

Страница 63: ...meters 5 Using switch between no and YES YES Resetting the O2 measuring parameters no Retaining settings 6 Confirm with RUN ENTER The measuring instrument switches to the setting to reset the Conductivity measuring pa rameters O ARng Y Sal Sal K TP C F Store cm 1 1 S M m mg l cm S cm mV pH mbar Baud 4 Day Month No Time Auto LoBat Tref25 nLF RCL AR Cal Lin Tref20 TDS AutoCal DIN AutoCalTEC Ident Ye...

Страница 64: ...g l cm S cm mV pH mbar Baud 4 Day Month No Time Auto LoBat Tref25 nLF RCL AR Cal Lin Tref20 TDS AutoCal DIN AutoCalTEC Ident Year o n I n I O UpH ARng Y Sal Sal K TP C F Store cm 1 1 S M m mg l cm S cm mV pH mbar Baud 4 Day Month No Time Auto LoBat Tref25 nLF RCL AR Cal Lin Tref20 TDS AutoCal DIN AutoCalTEC Ident Year o n I n I 9 Using switch between no and YES YES Resetting the configuration para...

Страница 65: ...ng Make sure that the poles of the batteries are the right way round The signs on the batteries must correspond to the signs in the bat tery compartment Only use leakproof alkaline manganese batteries 1 Open the housing after the instrument has been switched off Undo the four screws on the underside of the instrument Pull down the lower cover 1 2 If necessary take the four depleted batteries 2 out...

Страница 66: ...otective transport packing We recommend Keep the packing material The original packing pro tects the instrument against damage during transport Batteries This note refers to the battery regulation that applies in the Federal Re public of Germany We would ask end consumers in other countries to follow their local statutory provisions Note This instrument contains batteries Batteries that have been ...

Страница 67: ...eplace electrode Gel electrolyte dried out Replace electrode Cause Remedy Electrode Diaphragm contaminated Clean diaphragm Membrane contaminated Clean membrane Moisture in the plug Dry plug Electrolyte out of date Replenish electrolyte or replace electrode Electrode worn out Replace electrode Electrode broken Replace electrode Measuring instrument Incorrect calibration procedure Select correct pro...

Страница 68: ...ane contaminated Clean membrane Test sample pH value not stable Measure with air excluded if necessary Temperature not stable Adjust temperature if necessary Electrode test sample Conductivity too low Use suitable electrode Temperature too high Use suitable electrode Organic liquids Use suitable electrode Cause Remedy pH electrode pH electrode unsuitable Use suitable electrode Temperature differen...

Страница 69: ...circuit between gold and lead electrode Clean probe and replace it if necessary Cause Remedy Invalid calibration Oxygen sensor Electrolyte solution depleted Regenerate probe Membrane contaminated Clean membrane Electrode system poisoned Regenerate probe Worn out Replace probe broken Replace probe Cause Remedy Membrane damaged Membrane damaged Regenerate probe Membrane head not screwed on tight eno...

Страница 70: ...ility function using the salinity equivalent Air bubbles bump on the membrane with high velocity Avoid direct flow to the membrane The carbon dioxide pressure is too high 1 bar Measuring not possible Cause Remedy The measured value lies outside the measuring range Measuring cell not connected Connect measuring cell Cable broken Replace measuring cell Cause Remedy Measuring cell contaminated Clean ...

Страница 71: ...Exchange the batteries see section 5 1 MAINTENANCE Cause Remedy Operating condition undefined or EMC load unallowed Processor reset Hold the CAL key depressed and switch the instrument on Cause Remedy Time out of the interface Check that the instrument is connected Cause Remedy Calibration interval expired Recalibrate the measuring system Cause Remedy All memory locations are full Output data stor...

Страница 72: ...What to do if handylab multi 12 72 ...

Страница 73: ...xplains the indicators and the abbreviations that appear on the display and in the manual Specialist terms The glossary briefly explains the meaning of the specialist terms How ever terms that should already be familiar to the target group are not described here Index The index will help you to find the topics that you are looking for ...

Страница 74: ... for pH mea surements Indicates the selection of the buffer data records for SCHOTT technical buffer solu tions E3 Error message see chapter 6 WHAT TO DO IF InI Initialization Resets individual basic functions to the status they had on delivery LoBat Batteries almost empty Low Battery mV Voltage unit mV pH Unit of the electrode slope internat mV nLF Nonlinear temperature compensation OFL Display r...

Страница 75: ...Multi 340i Lists 75 TP Temperature measurement active temperature probe TRef 25 T25 Reference temperature of 25 C UASY Asymmetry ...

Страница 76: ...ct an electric cur rent In water analysis the electrical conductivity is a dimension for the ionized substances in a solution D O partial pressure Pressure caused by the oxygen in a gas mixture or liquid Diaphragm The junction is a porous body in the housing wall of reference elec trodes or electrolyte bridges It forms the electrical contact between two solutions and makes electrolyte exchange mor...

Страница 77: ...sure of the acidic or basic effect of an aqueous solu tion It corresponds to the negative decadic logarithm of the molal hy drogen ions activity divided by the unit of the molality The practical pH value is the value of a pH measurement Potentiometry Name of a measuring technique The signal depending on the mea sured parameter of the electrode is the electrical potential The elec trical current re...

Страница 78: ... is converted to a defined reference temperature For potentiometric measurements the slope value is adjusted to the tem perature of the test sample but the measured value is not converted Slope The slope of a linear calibration function Slope relative Designation used in the D O measuring technique It expresses the relationship of the slope value to the value of a theoretical reference probe of th...

Страница 79: ... O concentration 29 D O saturation 30 ORP voltage 21 pH value 20 Salinity 38 Measuring mode when switching on 17 Measuring ranges oxygen 9 pH ORP 9 Measuring the conductivity 38 Measuring the salinity 38 O Operating 8 Operating safety 14 ORP electrode 21 ORP voltage 21 Oxygen Measurement range sel ection 17 P pH calibration evaluation 23 pH value 20 Plug in power supply 16 Precautions 13 R Referen...

Страница 80: ...Index handylab multi 12 80 ...

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