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JUMO 202710/20, Руководство по эксплуатации

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2 General information

10

2.4

Notes on operation and maintenance

2.4.1

Battery operation

2.4.2

Power supply unit operation

NOTE!

Please do not connect any devices to socket 1 (see Chapter 4.3 "Con-
nections", page 14)!

NOTE!

The device and sensors must be handled with care and deployed according
to the technical data (do not throw, do not subject to impact, etc.). The con-
nectors and sockets must be protected against pollutants.

NOTE!

If 

 is displayed at the same time as "bAt" is shown in the bottom display,

the battery has been used up and must be replaced. However, the device
function remains guaranteed for a certain period of time.

If "bAt" is shown in the top display, the battery voltage is no longer sufficient 
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 device is not used for
an extended period of time.

It is necessary to set the real-time clock once again after subsequent startup.

CAUTION!

When a power supply unit is connected, its voltage must be between
DC 10.5 V and 12 V. Do not generate any excess voltage! Basic power supply
units may feature excess open circuit voltage, which may lead to malfunction
or destruction of the device!

Prior to connecting the power supply unit to the electricity grid, it must be
ensured that the operating voltage stated on the power supply unit corre-
sponds to the mains voltage.

Содержание 202710/20

Страница 1: ...Handheld Meter for pH Redox and rH Type 202710 20 Operating Manual 20271020T90Z001K000 V2 00 EN 00461261...

Страница 2: ......

Страница 3: ...4 1 Display 12 4 2 Control elements 13 4 3 Connections 14 4 4 Stand up hinge 14 5 Measuring 15 5 1 Preparing the device for the measurement 15 5 2 Measuring the pH value 15 5 3 Measuring the redox po...

Страница 4: ...input and the temperature input 32 8 Device settings 33 8 1 Calling up the setting menu 33 8 2 Resetting to default settings 34 8 3 Configuring the device 34 8 3 1 Submenu SEt ConF general settings 34...

Страница 5: ...life 50 11 4 General handling of pH combination electrodes 50 12 The redox combination electrode 51 12 1 General handling 51 13 Returns and disposal 52 13 1 Returns 52 13 2 Disposal 52 14 Technical d...

Страница 6: ...Contents...

Страница 7: ...ary measures are not taken 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 Th...

Страница 8: ...n the event of improper use of the device or in the event of misuse or malfunctions relating to the connection or the device 2 2 Intended use The device is designed to measure pH values and redox pote...

Страница 9: ...to observe this note may lead to serious damage to health and material damage DANGER This device must not be used in a potentially explosive environment If the device is operated in a potentially expl...

Страница 10: ...s shown in the top display the battery voltage is no longer sufficient for device operation and the battery is now completely used up NOTE The battery must be removed if the device is stored at an amb...

Страница 11: ...ons 12 to 15 from the left Example F Nr 00822713 01 0 1505 0001 The device was produced in the 05th calendar week of 2015 3 2 Order details 3 3 Accessories Handmessger t 202710 20 000 F Nr 00822713 01...

Страница 12: ...dure 6 Signals a stable measured value 7 Signals that a temperature probe has been connected and that the auto matic temperature compensation ATC is thus active 8 Display elements for the appearance o...

Страница 13: ...nly in operating mode pH pressed briefly Display the condition of the combination electrode 1x press display the calibration data additional presses pressed for 2 seconds Start the pH calibration Scro...

Страница 14: ...ured 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 for example 1...

Страница 15: ...onfigured per default for measuring the pH value If the device has been configured for a different measurand in a user defined operation first select the measurand pH see Parameter InP selection of a...

Страница 16: ...ry plug in contacts and keep them clean If possible do not immerse the combination electrodes in the measurement solution beyond the shaft for a long time except for with special waterproof versions C...

Страница 17: ...in drinking water treatment water monitor ing and in industry The measurement occurs with the commonly used silver silver chloride com bination electrodes reference system with 3 molar potassium chlor...

Страница 18: ...alue Prerequisite The pH value of the measurement solution must be known A redox combination electrode must be connected to the device Measuring without temperature probe Briefly press the key Adjust...

Страница 19: ...n electrode to the device Configure the device for measurand rH Gently stir the measurement solution Measuring with temperature probe Connect the pH combination electrode to the device Save the stable...

Страница 20: ...automatically when a stable measured value is reached When the measured value has been saved successfully the message HLD appears on the device display Press the key again to delete the saved value W...

Страница 21: ...ries page 37 Carefully remove the protective cap containing 3 mol KCl from the combi nation electrode Rinse the combination electrode and the temperature probe if available with de ionized distilled w...

Страница 22: ...device expects a neutral buffer solution within the range pH 6 5 to pH 7 5 for the first calibration point The device automatically detects the buffer solutions of the technical buffer series and the...

Страница 23: ...ion is completed and the device returns to measurement mode 6 3 2 Calibration with any buffers Calibration point 1 Press the key for at least 2 seconds to start the calibration Use the and keys to set...

Страница 24: ...ected the condition of the combination electrode is then briefly displayed and then the 2 point calibration is completed and the device returns to measurement mode Use the and keys to set the value fo...

Страница 25: ...e by pressing the key NOTE If the 2 or 3 point calibration has been selected as the calibration method the device expects a neutral buffer solution within the range pH 6 5 to pH 7 5 for the first cali...

Страница 26: ...bration is completed and the device returns to measurement mode Rinsing Rinse the combination electrode with de ionized distilled water and dry Calibration point 3 Insert the combination electrode int...

Страница 27: ...on the display above the yellow ok label The display changes so that the temperature value for the third buffer solution can be entered rH mV mVH pH ATC ok AL Logg pH CAL NOTE For a sufficiently accur...

Страница 28: ...stable small triangle appears on the display above the yellow ok label Use the and keys to set the temperature value for the second buffer solution and then save by pressing the key With 2 point calib...

Страница 29: ...the device returns to measurement mode 6 5 Display of the condition of the pH combination electrode Briefly press the key The value on the main display of the device flashes Pt 3 and a revolving symbo...

Страница 30: ...calibration the com bination electrode must be replaced NOTE During the evaluation both the asymmetry and the slope of the combination electrode are considered The asymmetry of the pH combination ele...

Страница 31: ...mbination electrode is defective Clean combination electrode recalibrate If error reoccurs replace combination electrode Wrong buffer solution Always use neutral buffer as first solution excep tion 1...

Страница 32: ...water controlled precision water baths or similar must be available for this purpose If a correction has been carried out deviation from the default setting this is indicated with the message Corr wh...

Страница 33: ...nt correction and slope correction of the voltage input and the temperature input See page 41 4 Settings for the real time clock See page 43 Providing information 5 Read calibration data See page 46 6...

Страница 34: ...er to be configured NOTE If the and keys are pressed simultaneously for over 2 seconds the device is reset to the default settings CAL 3 1 8 9 10 rH mV mVH pH ATC ok AL Logg pH CAL pH HLD 2 3 4 5 6 7...

Страница 35: ...n timer See page 37 6 Unit t temperature unit C F See page 38 7 Auto HLD automatic saving of a measured value See page 38 8 P oFF automatic device switch off See page 39 9 Out universal output See pag...

Страница 36: ...cessed when the pH measurand has been selected Use the and keys to set the number of calibration points Press the key to save the setting and move to the next parameter or press the key to save the se...

Страница 37: ...s to set the calibration timer Press the key 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 t...

Страница 38: ...ing of a measured value Press the key 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...

Страница 39: ...press the key to save the setting quit the device settings and return to measurement mode Menu parameter Setting option Meaning 1 to 20 to 120 Switch off delay in minutes If no key is pressed the dev...

Страница 40: ...he next submenu of the 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 t...

Страница 41: ...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 3 OFFS mV offset zero point co...

Страница 42: ...s the key 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...

Страница 43: ...ment mode 8 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 conf...

Страница 44: ...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 45: ...next submenu of the setting menu or press the key to save the setting quit the device settings and return to measurement mode 8 4 3 Submenu rEAd CAL reading the calibration data The reading of the ca...

Страница 46: ...your application and the stability of the combination electrode Once the interval has elapsed CAL flashes in the display 9 1 2 Reading the calibration data rEAd CAL The last calibration is stored in t...

Страница 47: ...larly after replacing the battery The date of the last calibration is shown in the main display The time of the last calibration is shown in the subsidiary dis play 1 With the 1 point calibration the...

Страница 48: ...ot reached Check if the measured value is above the admissi ble measuring range of the combination electrode Combination electrode is defective Send in device for repair System error Send in device fo...

Страница 49: ...the required values can no longer be obtained even after thorough cleaning When in use it is important to remember that various substances for exam ple hydrofluoric acid HF corrode glass in aqueous so...

Страница 50: ...be destroyed due to freezing of the electrolyte The sensor part of the combination electrode should be protected against dry ing out by using a protective cap filled with 3 molar KCl solution or a sto...

Страница 51: ...hydrochloric acid solution part no 00307114 is recommended The platinum tip of the sensor can be cleaned with ordinary scouring powder rinse well afterward If the combination electrode malfunctions Fu...

Страница 52: ...Use suitable transport 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 DISPOSA...

Страница 53: ...ual 1 2 or 3 point calibration 2 4 digit 7 segment LCD displays main display 12 4 mm high subsidiary display 7 mm high with additional symbols Calibration memory Adjustable calibration intervals 1 to...

Страница 54: ...serial interface switched off Battery display and bAt displayed automatically when battery is used up The device complies with the significant protection requirements defined in the Directive of the C...

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Страница 56: ...15 China RoHS 56...

Страница 57: ......

Страница 58: ...address 36035 Fulda Germany 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 44 127...

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