JUMO 202710/30 Operating Manual Download Page 37 | Manualshive

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37

8 Maintenance

8.2

Real-time 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.

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Summary of Contents for 202710/30

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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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