Knick Portamess 913 Cond Скачать руководство пользователя страница 18 | Manualshive

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Measurement

Measuring the conductivity (Cond)

Operation

Measuring

mode

Pressing meas accesses the measuring mode from all func-

tions. In the measuring mode, the main display indicates

the measured variable and the secondary display shows

the temperature.

Note

If the Portamess® 913 (X) Cond is connected to a PC and

measurements are taken in a grounded liquid, measuring

errors may result.

The main display indicates the measured conductivity, the

secondary display shows the temperature.

Temperature

compensation

The meter offers various temperature compensation

methods. With meas and

▲

or

▼

, the temperature

compensation method can be selected and set:
(

tc OFF

) No temperature compensation

(

tc nLF

) Temperature compensation with non-linear charac-

teristic to EN 27088 for natural water and ultrapure water

(reference temperature 25 °C). In the secondary display

tc

also appears.
(

tc 0.01 – 9.99 %/°C

) Temperature compensation with lin-

ear characteristic and definable temperature coefficients

(reference temperature 25 °C). In the secondary display

tc

also appears.

Note

When you have selected temperature compensation

with linear characteristic, you can only exit this function

or select the nonlinear function when the temperature

coefficient has been set to 0.00.

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Содержание Portamess 913 Cond

Страница 1: ...урск 4712 77 13 04 Липецк 4742 52 20 81 Магнитогорск 3519 55 03 13 Москва 495 268 04 70 Мурманск 8152 59 64 93 Набережные Челны 8552 20 53 41 Нижний Новгород 831 429 08 12 Казахстан 772 734 952 31 Новокузнецк 3843 20 46 81 Новосибирск 383 227 86 73 Омск 3812 21 46 40 Орел 4862 44 53 42 Оренбург 3532 37 68 04 Пенза 8412 22 31 16 Пермь 342 205 81 47 Ростов на Дону 863 308 18 15 Рязань 4912 46 61 64 ...

Страница 2: ...ries Type 4006 Type 8006 and Type 3706 listed in the EC Type Examination Certificate These batteries were tested according to IEC 60079 0 2007 IEC 60079 11 2006 by a notified body and the test results were set out in an IECEx test report Equipped with the batteries listed in the table the Model 91 X Cond portable conductivity meter may be used in hazardous areas Be sure to observe the temperature ...

Страница 3: ...tions are explained are frequently shown in the left hand column Note Notes provide important information which should always be observed when using the meter Caution Caution means that the instructions given must always be followed to prevent malfunctions or damage to the device Warning Warning means that the instructions given must always be followed for your own safety Failure to follow these i...

Страница 4: ...iron ment food processing and waste water treatment Operation of the Portamess 913 X Cond is also permitted in hazardous areas Zone 1 The meter meets the EMC requirements of 89 336 EEC and the recommendations as per NAMUR NE 21 The meter is IP 66 protected to EN 60 529 jet water from all directions Temperature compensation is automatic with an NTC 30 kΩ or a Pt 1000 temperature detector automatic ...

Страница 5: ...r or twelve hours Only three alkaline AA batteries are required for uninter rupted operation for approx 1 000 hours With the Paraly software the meter can be completely remote controlled from a PC All measured values and parameters can be read out and easily processed further e g using Microsoft Excel Measured values and meter records can also be output directly to a printer via the serial interfa...

Страница 6: ...2 Operation Meter design 1 Sensor connection 2 3 Separate temperature probe connection 4 PC printer interface connection 5 Sensor container removable Operation ...

Страница 7: ... temperature detector Pressing meas returns the meter to the measuring mode from any function Pressing meas in the measuring mode displays the following parameters Cond measuring mode temperature compensation tdS measuring mode TDS factor Note You can also switch the meter on by pressing meas However in this case only a short test is performed and the temperature detector is not identified The met...

Страница 8: ...tored measured values Pressing print outputs the currently measured value to a printer or PC Pressing RCL and then print prints out the data memory Pressing cal and then print prints out the meter record Pressing STO and then clock switches the meter into the data logger mode Pressing clock and STO simultaneously activates the mode for setting the date and time Pressing cal and on off simultaneous...

Страница 9: ...erature detector SE 204 4 electrode sensor with integrated NTC 30 kΩ temperature detector Connection assignment Connection Socket Sensor 1 Separate temperature probe 2 3 Remote interface 4 If no temperature detector is used for measurement the meter operates with the manually set temperature and man appears in the display Note When using a sensor with integrated temperature detector do not connect...

Страница 10: ...he meter into measuring mode After power on the meter determines the con nected temperature detector and performs a self test Simultaneous appearance of all display segments Display of the model number Display of the software version Note For recognition of the temperature detector the con ductivity sensor must be connected to the meter before power on The temperature detector is only recognized d...

Страница 11: ...f The menu items of the configuration menu are worked through in sequence Use and to change the setting of the respective menu item STO saves the parameters and switches to the next menu item Pressing meas exits the configuration menu at any time The value last displayed and possibly changed will then not be saved Function Select the measuring function Cond conductivity SAL salinity or tdS Total D...

Страница 12: ...ogger is active and during remote interface operation the auto switch off feature is disabled Interface If the meter is controlled by a PC and interface conflicts occur when the print key is pressed you should deacti vate the print function Print OFF default setting Print On 4 800 bauds The transmission speed can be set to 600 1200 2400 4800 or 9600 bauds The transmission speed must correspond to ...

Страница 13: ...Operation Date and time format You can choose between the display format 24 hours and day month year and the format 12 hours a m p m and month day year Default setting 24 hours and day month year ...

Страница 14: ...ion is therefore generally not necessary 4 electrode sensors With 4 electrode sensors the principle of separate current voltage electrodes results in virtually no measuring errors even in the case of partial soiling of the measuring elec trodes However electrodes completely soiled with insulat ing coatings cause the measurement to fail 2 electrode sensors With 2 electrode sensors for the measureme...

Страница 15: ... stored in the calibration mode AutCAL OFF An additional calibration with calibra tion solutions is not necessary SE 202 sensor c 0 1 cm 1 SE 204 sensor c 0 475 cm 1 Press cal to activate calibration The cell constant deter mined or set during the last calibration is displayed Pressing meas exits calibration again Use and to set the cell constant of the sensor and confirm by pressing cal The meter...

Страница 16: ...solution Immerse the clean and dry sensor in the calibration solution see also Clean sensors page 19 Press cal to start calibration If calibration is not desired cancel the process by pressing meas During calibration the lower line indicates the tempera ture The automatic drift check checks the stability of conductivity and temperature The hourglass indicator flashes When the measured values are s...

Страница 17: ...ation is not desired cancel the process by pressing meas During calibration the lower line indicates the tempera ture The automatic drift check checks the stability of conductivity and temperature The hourglass indicator flashes When the measured values are stable the temperature compensated table value of the KCl solution is displayed The measured conductivity value flashes See the table of your ...

Страница 18: ...ffers various temperature compensation methods With meas and or the temperature compensation method can be selected and set tc OFF No temperature compensation tc nLF Temperature compensation with non linear charac teristic to EN 27088 for natural water and ultrapure water reference temperature 25 C In the secondary display tc also appears tc 0 01 9 99 C Temperature compensation with lin ear charac...

Страница 19: ...tion residue in mg l the secondary display the temperature TDS factor Pressing meas and then or sets the TDS factor within the range 0 40 1 00 Note The TDS factor depends on the composition of the water to be tested and must be determined for each water type Manual temperature specification The man display signals that no temperature detector is connected The meter operates with the manually speci...

Страница 20: ...ion number is automatical ly incremented and the meter returns to measuring mode Read memory Pressing RCL displays the last stored value Select any memory location using and Pressing RCL switches between the measured value and the time date of storage This allows for example searching for a value that was stored at a certain time Pressing meas returns to the measuring mode Clear memory To clear th...

Страница 21: ...ted mode In the Continue and Start mode this also starts the data logger The current memory location is shown in the display If Clear has been selected all memory locations are cleared and the meter returns to measuring mode Pressing meas ends the data logger mode Data logging modes After pressing STO logging is continued after the memory location in which the last measured value was stored con ti...

Страница 22: ... value has changed The differential value is entered in the subsequent param eter setting step Note The differential value is always based on the currently set measured variable conductivitiy salinity or TDS This means that if differential conductivity values are to be logged the meter must be set to conductivity measure ment prior to parameter setting and data logging With manual data logging the...

Страница 23: ... to a minimum Setting clock To set the time or date the clock mode must be activated Press clock and STO simultaneously The time display flashes Now the time can be set using and Pressing STO again saves the displayed time Now the date can be set Press STO again to save the date Now the year can be set Press STO to confirm the year The meter returns to the clock mode Press meas to return to measur...

Страница 24: ...all data and parameters can be read Using the printer e g printer ZU 0244 you can directly print measured values the memory and records Interface parameters The RS 232 interface can be defined for all common baud rates Setting is carried out in the Configuration menu Baud rate 600 Bd 1 200 Bd 2 400 Bd 4 800 Bd default setting 9 600 Bd The data format and protocol are permanently set to 7 bits even...

Страница 25: ...the configuration Print On and the set baud rate corresponds to that of the printer Printing measured values Press print while in the measuring mode to print out the currently measured value The measured value is printed out together with the temperature date time and a three digit identification number The identification number is reset when the meter is switched off Printing the memory Press RCL...

Страница 26: ... will be marked with If temperature compensation was active during data log ging the line on the printout will be marked with Printing the record To print out the meter record press cal and then print The record printout contains a calibration record with the data of the last calibration the settings of the configuration menu a record of the last meter self test ...

Страница 27: ...nsor connected Wrong cell constant entered ERROR 3 The measured temperature is outside the ranges Conductivity nLF Salinity TDS 20 C to 120 C 0 C to 120 C 0 C to 30 C 10 C to 40 C Possible causes Temperature detector in the sensor defective Short circuit in temperature detector Wrong temperature detector connected Note When changing the conductivity sensor note that the temperature detector type P...

Страница 28: ...sor cable insufficiently shielded or defective Strong electric fields influence the measurement Major temperature fluctuation of the calibration solution Calibration solution unstable Conductive connection between potential to ground PC meter and measured medium ERROR 14 If the clock has not been set e g after battery replacement this error message is displayed To clear the message set the clock s...

Страница 29: ...e meter ERROR 19 Error in the factory settings or system memory FAIL appears in the display Possible causes EPROM or RAM defective Error in meter factory settings Note This error message should normally not occur as the data are protected from loss with multiple safety functions Should this error message nevertheless appear no remedy is available The meter must be repaired and recalibrated at the ...

Страница 30: ... you need 3 alkaline AA cells and a screwdriver either straight blade or Phillips Close the protective cover and remove the sensor container Lift the hook unscrew the four screws on the back of the meter and remove the lid Remove the old batteries from the battery holder Insert the new batteries in the specified direction Make sure the protective cover is in the notches provided and the rubber sea...

Страница 31: ...emory location to be written with RCL and or before restarting the data logger Caution If you want to store the meter for a longer time the batteries must always be removed beforehand Leaky batteries may damage the meter To remove dust and dirt the external surfaces of the meter may be cleaned with water and also with a mild household cleaner if necessary Caution Beware of electrostatic charging w...

Страница 32: ...plug to meter socket ZU 0289 Adapter for 8 pole plug to meter socket for connection of ZU 6985 lab sensor ZU 0290 Sensors 2 electrode sensor incl flow through cell Material stainless steel 1 4571 Cell constant 0 100 cm 1 Range 0 01 199 9 µS cm SE 202 4 electrode sensor Material epoxy graphite Cell constant 0 475 cm 1 Range 0 1 µS cm 500 mS cm SE 204 Conductivity standards 13 88 mS cm 250 ml 0 1 mo...

Страница 33: ... 0 010 to 199 9 cm 1 adjustable Sensor standardization Direct entry of the cell constants Automatic determination of the cell constants with KCl solution 0 01 mol l or 0 1 mol l Sensor standardization with any known solutions Meter self test During switch on routine segment test display of model number and software version Temperature measurement Pt 1000 NTC 30 kΩ automatic recognition during powe...

Страница 34: ... settings 10 years Automatic switch off After either 1 or 12 hours ineffective during interface or data logger operation EMC Emitted interference EN 61 326 Class B Immunity to interference EN 61 326 EN 61 326 A1 and NAMUR NE 21 Explosion protection 913 X Cond only II 2 1 G Ex ia IIC T3 T4 Ga PTB 01 ATEX 2161 Ambient temperature Operation 10 to 50 C T3 10 to 40 C T4 Transport and storage 20 to 70 C...

Страница 35: ...records up to 100 measured values together with the temperature date and time in the data memory Recording takes place either interval or event controlled measured value difference or manually at the push of a button Data memory Up to 100 measured values can be stored in the data memory together with the temperature time and date Evaporation residue See TDS GLP Good Laboratory Practice Rules for c...

Страница 36: ... 204 51 73 Екатеринбург 343 384 55 89 Иваново 4932 77 34 06 Ижевск 3412 26 03 58 Иркутск 395 279 98 46 Киргизия 996 312 96 26 47 Казань 843 206 01 48 Калининград 4012 72 03 81 Калуга 4842 92 23 67 Кемерово 3842 65 04 62 Киров 8332 68 02 04 Краснодар 861 203 40 90 Красноярск 391 204 63 61 Курск 4712 77 13 04 Липецк 4742 52 20 81 Магнитогорск 3519 55 03 13 Москва 495 268 04 70 Мурманск 8152 59 64 93...

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