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17

5 Measuring

Select the measurand

If the device has been configured for a different measurand in a user-
defined operation, first change the measurand (see "Parameter "InP":
selection of a measurand", page 21).

Measuring range

• 0.0 to 70.0 ‰ (g/kg)

5.7

Temperature compensation

The conductivity and TDS of aqueous solutions depend on the temperature.
Thanks to the temperature compensation, the solution is counted back to a
uniform reference temperature.

The normal reference temperature, which is preset in the device, is 25 °C.

5.7.1

Nonlinear temperature compensation "nLF" according to EN
27888

The nonlinear temperature compensation for natural waters ("nLF" according
to EN 27888) is sufficiently accurate for most applications, for example in the
area of fish breeding and for measuring surface water and drinking water.

Recommended area of application

The "nLF" compensation is recommended for conductivity measurements
between 60 µS/cm and 1000 µS/cm.

NOTE!

This measurement is intended exclusively for measuring seawater. The salin-
ity measurement is not suitable for determining the salt concentration of other
saline solutions. A measurement according to TDS is recommended in such
cases, see Page 15.

NOTE!

The salinity measurement features dedicated automatic temperature com-
pensation, independent of the menu settings concerning temperature com-
pensation for conductivity.

All manuals and user guides at all-guides.com

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Содержание 202710/30

Страница 1: ...er for Conductivity CR Specific Electrical Resistivity TDS and Salinity Type 202710 30 Operating Manual 20271030T90Z001K000 V2 00 EN 00463204 All manuals and user guides at all guides com a l l g u i...

Страница 2: ...All manuals and user guides at all guides com...

Страница 3: ...Stand up hinge 12 5 Measuring 13 5 1 The measuring cell 13 5 2 Switching on the device 14 5 3 Measuring the conductivity 14 5 4 Measuring the specific electrical resistivity 15 5 5 Measuring the filt...

Страница 4: ...erature input 33 7 2 Calibrating the relative time constant 33 7 2 1 Calibration using customer specific reference solution CAL Edit function 33 7 2 2 Calibration using standard reference solutions CA...

Страница 5: ...ken CAUTION This symbol in connection with the signal word indicates that damage to assets or data loss will occur if the respective precautionary measures are not taken NOTE This symbol refers to imp...

Страница 6: ...r the device 2 2 Intended use When used with a securely connected sensor the device is designed for mea suring conductivity specific electrical resistivity salt content and TDS The safety information...

Страница 7: ...ction and operational safety of the device can only be maintained under the climatic conditions specified in chapter Chapter 11 Technical data page 40 If the device is transported from a cold environm...

Страница 8: ...for device operation and the battery is now completely used up NOTE The battery must be removed if the device is stored at an ambient tempera ture of over 50 C The battery should be removed if the dev...

Страница 9: ...characters in positions 12 to 15 from the left Example F No 00822713 01 0 1815 0001 The device was produced in the 15th calendar week of 2018 3 2 Order details Handmessger t 202710 30 000 F Nr 008227...

Страница 10: ...sured value 5 Display of the selected temperature compensation 6 Display elements for the appearance of the minimum MIN maximum MAX or saved measured value HLD a a The DIF display is not supported in...

Страница 11: ...uestion Enter values or modify settings CAL pressed for 2 seconds Start calibration of the relative cell constants only possible in operating mode cond conductivity Scroll through the parameter sublev...

Страница 12: ...table or secured on a belt When the stand up hinge is at a position of 90 the device can be set up on an even surface When the stand up hinge is at a position of 180 the device can be hung on a hook...

Страница 13: ...slightly longer time to display a stable measured value than a measuring cell that has been stored under wet conditions Before the measuring cell is moved into a liquid with a significantly different...

Страница 14: ...ent is therefore excellently suited to determining the concentration of saline solu tions acids and lyes The conductivity is the reciprocal of the specific electrical resistivity and is stated by the...

Страница 15: ...suring ranges listed Measuring ranges 0 000 to 2 000 k cm 0 00 to 20 00 k cm 0 0 to 100 0 k cm For the purpose of measurement a fixed set measuring range can also be selected instead of the measuring...

Страница 16: ...alinity Unit is also commonly used The salinity measurement in this device relates to the International Oceano graphic Tables IOT Accordingly a salinity of 35 g kg is taken as a reference value standa...

Страница 17: ...ature compensation for natural waters nLF according to EN 27888 is sufficiently accurate for most applications for example in the area of fish breeding and for measuring surface water and drinking wat...

Страница 18: ...ed off t Cor oFF 5 8 Saving a measured value with the hold function HLD The device features a HOLD function for saving a measured value Depending on the device configuration see Parameter Auto HLD aut...

Страница 19: ...29 5 Settings for the real time clock see page 30 Providing infor mation 6 Read calibration dataa see page 36 a Only possible if calibration data is stored in the device SAL mg l kOhm mS S Lin nLF AL...

Страница 20: ...the submenu SEt ConF use the key to select the parameter to be configured NOTE If the and keys are pressed simultaneously for over 2 seconds the device is reset to the default settings SAL mg l kOhm m...

Страница 21: ...page 23 6 rEF S selection of the standard reference solution for the calibration of the relative cell constant see page 24 7 Unit t temperature unit C F see page 24 8 t Cor setting the temperature co...

Страница 22: ...to measurement mode Parameter CELL Corr setting the relative cell constant Use the and keys to manually set the relative cell constant Press the key to save the setting and move to the next parameter...

Страница 23: ...d be per formed with a customer specific reference solution Edit or with a selection of standard reference solutions rEF S Press the key to save the setting and move to the next parameter or press the...

Страница 24: ...the setting quit the device settings and return to measurement mode Parameter Unit t temperature unit C F Use the and keys to select the temperature unit Press the key to save the setting and move to...

Страница 25: ...compensation t Cor To determine the compensation coefficient see chapter 5 7 2 Linear tempera ture compensation t Lin page 18 Use the and keys to set the temperature coefficient Press the key to save...

Страница 26: ...tings and return to measurement mode Parameter C int calibration timer Use the and keys to set the calibration timer Press the key to save the setting and move to the next parameter or press the key t...

Страница 27: ...ey to save the setting and move to the next parameter or press the key to save the setting and move to the next submenu of the setting menu or press the key to save the setting quit the device setting...

Страница 28: ...setting menu or press the key to save the setting quit the device settings and return to measurement mode CAL 3 SAL mg l kOhm mS S Lin nLF AL Logg K 1 cm NOTE The functions of the serial interface are...

Страница 29: ...arameter or press the key to save the setting and move to the next submenu of the setting menu or press the key to save the setting quit the device settings and return to measurement mode Parameters 1...

Страница 30: ...6 4 2 Submenu SEt CLOC setting the real time clock Overview of the parameters After calling up the setting menu with and selecting the submenu SEt CLOC use to select the parameter to be configured Me...

Страница 31: ...he setting and move to the next parameter or press the key to save the setting and move to the next submenu of the setting menu or press the key to save the setting quit the device settings and return...

Страница 32: ...submenu of the setting menu or press the key to save the setting quit the device settings and return to measurement mode 6 4 3 Submenu rEAd CAL reading the calibration data The reading of the calibrat...

Страница 33: ...constant can also be determined automatically via the parameter CELL Corr see page 22 7 2 1 Calibration using customer specific reference solution CAL Ed it function This function enables the user to...

Страница 34: ...L Use the and keys to select the REF S setting option Selecting the standard reference solution Press the key to call up the parameter rEF S Use the and keys to select one of the standard reference so...

Страница 35: ...re compensation t Cor oFF and use the conductivity value that corresponds to the temperature Assumption Conductivitydisplay 1500 S cm 1 at set relative cell constant CELL Corr out of 1 000 Conductivit...

Страница 36: ...ibration timer page 26 8 1 2 Reading the calibration data rEAd CAL The last calibration is stored in the device with the date and calibration values and can be called up as follows Press the key for a...

Страница 37: ...clock CLOC The real time clock is used for the chronological assignment of the calibration You should therefore check the settings as required particularly after replacing the battery All manuals and...

Страница 38: ...Measuring range not reached Check whether the measured value is below the permissible measuring range of the sensor Measuring cell is defective Send in device for repair System error Send in device fo...

Страница 39: ...packaging when returning the device especially if the device is still functioning Ensure that the device is protected by sufficient insulation material in the packaging DISPOSAL Hand in empty batteri...

Страница 40: ...hite Shaft material Polysulfone PSU Dimensions 12 mm 120 mm Ambient temperature 5 0 to 80 0 C long term briefly up to 100 C 2 4 digit 7 segment LCD displays main display 12 4 mm high subsidiary displa...

Страница 41: ...automatically if it is not operated for an extended period of time select period between 1 and 120 min The device complies with the significant protection requirements defined in the Directive of the...

Страница 42: ...0XWWHU 6FUHZ 6FKUDXEH d 7KLV WDEOH LV SUHSDUHG LQ DFFRUGDQFH ZLWK WKH SURYLVLRQV 6 7 7 QGLFDWH WKH KD DUGRXV VXEVWDQFHV LQ DOO KRPRJHQHRXV PDWHULDOV IRU WKH SDUW LV EHORZ WKH OLPLW RI WKH 7 7 QGLFDWH...

Страница 43: ...All manuals and user guides at all guides com...

Страница 44: ...many Phone 49 661 6003 0 Fax 49 661 6003 607 Email mail jumo net Internet www jumo net JUMO House Temple Bank Riverway Harlow Essex CM20 2DY UK Phone 44 1279 63 55 33 Fax 44 1279 62 50 29 Email sales...

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