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Basic operation

D-72

●

Changing the measurement parameter

This instrument can measure multiple parameters. For measurement, an electrode
corresponding to the measurement parameter is required. In the measurement mode,
the measurement parameter can be changed by pressing the

key.

●

Using the backlight

When it is difficult to see the screen in a dark location, you can turn on the backlight by
pressing the

key. If the backlight is not operated for 5 minutes, it automatically turns

off. To turn it off manually, press the

key again while the backlight is on.

Note

・

Turning on the backlight consumes energy and shortens battery life.

・

The backlight becomes unavailable when the battery level becomes low.

key

Содержание D-72

Страница 1: ...Portable pH ORP Meter D 72 Instruction Manual CODE GZ0000333604...

Страница 2: ......

Страница 3: ...er operation Any malfunction attributable to repair or modification by any person not authorized by HORIBA Ltd Any malfunction or damage attributable to the use in an environment not specified in this...

Страница 4: ...ee below all exist If damage or defects are found on the product contact your dealer Note The accessories are not waterproof The supplied alkaline batteries are used to check operation thus it is poss...

Страница 5: ...ulators under the Directive 2006 66 EC in the European Union The symbol might be put with one of the chemical symbols below In this case it satisfies the requirements of the Directive 2006 66 EC for t...

Страница 6: ...o provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not...

Страница 7: ...d to the most extreme situations This indicates a potentially hazardous situation which if not avoided could result in death or serious injury This indicates a potentially hazardous situation which if...

Страница 8: ...Do not disassemble or modify the instrument Otherwise it may heat up or be ignited resulting in a fire or an accident CAUTION Harmful chemicals The internal solution of pH electrode is highly concentr...

Страница 9: ...nto the eyes do not rub the eyes rinse with clean water immediately and then consult a doctor Contact with alkaline fluid could cause blindness Do not put batteries in a fire expose to heat disassembl...

Страница 10: ...waterproof performance is maintained only when the covers are attached correctly After replacing the batteries connecting the AC adapter and using the RS 232C communication make sure that the waterpr...

Страница 11: ...ot attempt to charge a non rechargeable battery Environmental conditions for use and storage Temperature 0 C to 45 C Humidity under 80 in relative humidity and free from condensation Avoid the followi...

Страница 12: ...on in this manual This interprets the necessary points for correct operation and notifies the important points for handling the product This indicates the part where to refer for information This indi...

Страница 13: ...splay 3 Operation key 5 Basic operation 6 Changing the operation mode 6 Changing the measurement parameter 7 Using the backlight 7 Entering numeric values 8 Measurement 9 Preparation 10 Confirmation b...

Страница 14: ...device 40 Using the automatic data save default OFF 41 Setting the ID number default 000 43 Using the calibration interval alarm default OFF 44 Calibrating temperature sensor 45 Changing the automati...

Страница 15: ...ting 57 The indicated value fluctuates 57 The response is slow 58 The indicated value does not change No response 58 The measured value blinks 59 The temperature display blinks or is fixed at 25 C 59...

Страница 16: ......

Страница 17: ...and the main role function and basic operation method of each part Names of each part 2 Instrument 2 Display 3 Battery level display 4 Operation key 5 Basic operation 6 Changing the operation mode 6 C...

Страница 18: ...r Connects the BNC connector of the electrode 4 Temperature connector Connects the temperature connector of the electrode 5 Battery cover Set batteries inside 6 Electrode hook attachment section Attac...

Страница 19: ...a Displays the currently set measurement parameter 7 HOLD icon Lights when the measured value display is fixed 8 SET icon Lights when numerical values are entered 9 Temperature display area Displays t...

Страница 20: ...Battery level display Battery level is high Battery level is a little lower Battery level is low The backlight may become unavailable Battery has run out Replace the batteries ERR No 0002 is displaye...

Страница 21: ...on mode DATA key Changes from the measurement mode to the data mode SET key Changes from the measurement mode to the setting mode Starts repeatability inspection after calibration is complete POWER ke...

Страница 22: ...tion data or setting mode is available only from the measurement mode When changing to a different mode first change to the measurement mode and then change to the desired mode Icon Name Function Meas...

Страница 23: ...hanged by pressing the key Using the backlight When it is difficult to see the screen in a dark location you can turn on the backlight by pressing the key If the backlight is not operated for 5 minute...

Страница 24: ...A Entering numeric values When entering numeric values to make various settings and set a calibration value you can change the selected digit using the keys and increment or decrement the value 0 to 9...

Страница 25: ...14 pH measurement 15 Setting the instrument 15 Setting temperature compensation default ATC 15 Setting the standard solution used for calibration default NIST 16 Standard solution type 17 Performing c...

Страница 26: ...ndard solution for the measurement parameter If not prepare the standard solution by yourself or purchase it Are there any items that should not be wet or stained around the instrument Depending on th...

Страница 27: ...on the battery cover on the back of the instrument clockwise to lock the battery cover Note Do not replace the batteries in a dusty place or with wet hands Dust or moisture could get inside the instr...

Страница 28: ...le with force when the connector does not match the socket When not using the AC adapter close the AC adapter connector cover While connected to the AC adapter the instrument does not have the dust pr...

Страница 29: ...e and time of saved data becomes incorrect Refer to Displaying saved data page 31 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the...

Страница 30: ...n preparing electrodes Use the following procedure to correctly connect the electrode to the instrument 1 Insert the electrode connector by fitting its groove with the connector socket pin of the inst...

Страница 31: ...e matched to the standard solution temperature only when the standard solution setting is NIST and USA However the function does not convert the pH value according to the temperature characteristics o...

Страница 32: ...alibration default NIST Set the standard solution used for calibration With this instrument you can choose from 3 types NIST USA and CUST the standard solution other than NIST and USA Set according to...

Страница 33: ...25 C Standard solution type Description NIST Japanese specification Set to use the standard solution of the Japanese specification Standard solution icon USA USA specification Set to use the standard...

Страница 34: ...data page 33 Deleting calibration data page 35 pH standard solution setting is NIST or USA This section describes the procedure for two point calibration of NIST pH 4 and 7 as a general calibration ex...

Страница 35: ...urrent measured value display appears 8 Check that the pH value is stable while the pH electrode is immersed in the standard solution then press the key Stabilization judgment starts and the HOLD icon...

Страница 36: ...electrode status After calibration is complete the current pH electrode status is diagnosed from the calibration result Use this information for maintenance of the electrode Display Description Refer...

Страница 37: ...al solution filler port of the pH electrode If calibration is performed with the port closed the internal solution does not flow and the measurement value is not stabilized Make sure to keep the port...

Страница 38: ...r tissue paper 3 Open the internal solution filler port of the pH electrode If calibration is performed with the port closed the internal solution does not flow and the measurement value is not stabil...

Страница 39: ...rse at least 3 cm from the tip of the pH electrode 7 Press the key and enter the standard solution value for the second point 8 While the pH electrode is immersed in the standard solution press the ke...

Страница 40: ...electrode status is diagnosed from the calibration result Use this information for maintenance of the electrode Display Description Reference Both ERR No are not displayed Electrode sensitivity 93 to...

Страница 41: ...ibration 3 Immerse at least 3 cm from the tip of the pH electrode in the sample solution In order to flow the internal solution into the sample solution immerse the liquid junction in the sample solut...

Страница 42: ...fault ATC Automatic temperature measurement function can be used by using combination electrode equipped with a temperature sensor or connecting a temperature compensation electrode When mV or ORP are...

Страница 43: ...he relative value measurement Absolute value measurement mode The measured value of electromotive force is displayed Relative value measurement mode The measured value of electromotive force of a samp...

Страница 44: ...d junction in the sample solution surely 4 While the electrode is immersed in the sample solution press the key Stabilization judgment starts and the HOLD icon blinks When the value is stabilized the...

Страница 45: ...he latest inspection data 34 Deleting calibration data 35 Printing measured values and calibration data 36 Transferring saved data to a PC 39 Operating the instrument from an external device 40 Using...

Страница 46: ...the measurement mode except during the automatic hold measurement 1 While the data to save is displayed press the key to enter the data mode 2 Select IN data saving and press the key Saved data is dis...

Страница 47: ...the internal memory 1 Press the key to enter the data mode 2 Press the keys to select OUT display saved data and then press the key Press the keys to change the measurement data and press the keys to...

Страница 48: ...the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the DATCLR delete saved data and then press the key 4 Select YES to delete t...

Страница 49: ...ng the latest calibration data 1 Press the key to enter the data mode 2 Press the keys to select CAL pH or ION display calibration data and then press the key The electrode status based on the calibra...

Страница 50: ...spection data and then press the key Displays the repeatability value the absolute value of the difference between the measured value and standard solution value Display Description Reference GOOD Ele...

Страница 51: ...aintenance setting and then press the key 3 Press the keys to select the CALCLR delete calibration data and then press the key 4 Select YES to delete the calibration data or select NO to cancel deleti...

Страница 52: ...or details of how to display measurement data and calibration data refer to the respective section Displaying saved data page 31 Displaying the latest calibration and inspection data page 33 The forma...

Страница 53: ...ed on calibration result Printout format Description Inst model D 72 Instrument model Inst SN KL1TSE09 Instrument serial number Elect status OK Electrode status based on calibration result Offset 0 7...

Страница 54: ...te 2013 09 01 Calibration date Time 09 00 Calibration time pH 4 01 176 9 mV Measurement potential 25 0 C ATC Temperature value and temperature setting pH 6 86 7 6 mV Measurement potential 25 1 C ATC T...

Страница 55: ...e FD 70 refer to the FD 70 instruction manual which you can download from our website as well The required PC specifications and recommended PC specifications for using the FD 70 are shown in the foll...

Страница 56: ...occurs and the online mode does not start up and as a result RS 232C communication cannot be performed Also when the transfer format is changed turn OFF the power of the instrument and PC and then reb...

Страница 57: ...automatic data save function the data saved until just before the batteries run out Replace the batteries and check the data 1 Press the key to enter the setting mode 2 Press the keys to select the AT...

Страница 58: ...g the key starts saving the data when the setting is ON Pressing the key again stops the data saving process During automatic data saving measurement data is displayed for one second each time a measu...

Страница 59: ...ata to be saved When the data is saved in the internal memory the ID number entered in this setting is saved together with the data 1 Press the key to enter the setting mode 2 Press the keys to select...

Страница 60: ...tion data is deleted with this function set an error is displayed immediately When the error is displayed performing calibration clears the error 1 Press the key to enter the setting mode 2 Press the...

Страница 61: ...de 3 Press the keys to select the MAINT maintenance setting and then press the key 4 Press the keys to select the TEMP temperature calibration setting and then press the key 5 Enter the set temperatur...

Страница 62: ...g an external device 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select the AT OFF automatic power off...

Страница 63: ...for test printing As a result of test printing if the printout is as shown below the printer unit is operating correctly 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT...

Страница 64: ...temperature calibration data is also initialized 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Press the keys to select th...

Страница 65: ...irt wipe it gently with a cloth moistened with alcohol The instrument is made of solvent resistant materials but that does not mean it is resistant to all chemicals Do not dip the instrument in strong...

Страница 66: ...ill slow Store in a moist atmosphere Follow the steps below to properly store the electrode 1 Wash the electrode well with pure water or deionized water to remove sample completely and close the inter...

Страница 67: ...ure water or deionized water Daily storage of the electrode If the electrode becomes dry the response will slow Store in a moist atmosphere Follow the steps below to properly store the electrode 1 Was...

Страница 68: ...e electrode internal solution If the surface of the metal electrode is dirty wipe it gently with a soft material such as absorbent cotton moistened with alcohol or a neutral cleaning solution or immer...

Страница 69: ...c potential does not stabilize within three minutes 0004 Asymmetric potential error The asymmetric potential of the electrode is out of the range of 45 mV 0005 Electrode sensitivity error The electrod...

Страница 70: ...value without using the automatic hold function The electrode is dirty Clean the electrode The electrode is cracked Replace the electrode The responsive glass membrane of the electrode has been dry fo...

Страница 71: ...The electrode must be immersed up to the liquid junction As a guide immerse to at least 3 cm from the tip of the electrode There is a problem with the standard solution Use new standard solution Cause...

Страница 72: ...een performed for the set number of days of the calibration interval or longer Perform calibration The calibration interval alarm is ON and calibration has not been performed Perform calibration Cause...

Страница 73: ...lution of the reference electrode until it is higher than the level of the sample Cause How to solve problem There is a motor or other device causing electrical interference Measure at a place where n...

Страница 74: ...important to select an electrode that is appropriate for the sample Consult your dealer To confirm an electrode that is appropriate for the sample check the pH electrode selection guide in our catalog...

Страница 75: ...enough to cover liquid junction The electrode must be immersed up to the liquid junction As a guide immerse to at least 3 cm from the tip of the electrode The electrode cable is broken Replace the ele...

Страница 76: ...plenish the internal solution of the reference electrode until it is higher than the level of the sample Cause How to solve problem Power is not supplied Insert batteries or connect the AC adapter opt...

Страница 77: ...set to full screen display Follow the steps below to check the display 1 Press the key to enter the setting mode 2 Press the keys to select the MAINT maintenance setting and then press the key 3 Pres...

Страница 78: ...M E M O 62 HORIBA...

Страница 79: ...aline batteries LR03 or AAA Ni MH rechargeable batteries 2 AC adapter 100 V to 240 V 50 60 Hz 0 37 A option Dimensions Approx 67 80 28 42 170 mm The figures in parentheses are maximum thicknesses Mass...

Страница 80: ...TC Manual MTC Automatic ATC Temperature input value 0 0 C to 100 0 C 25 0 C Auto power off ON OFF OFF Auto power off time 1 min to 30 min 30 min Sample ID 000 to 2999 000 Auto data memory ON OFF OFF A...

Страница 81: ...mV of electromotive force The liquid inside the glass electrode usually has a pH 7 If one measures the electromotive force generated at the electrode membrane the pH of the sample can be found by cal...

Страница 82: ...pH 12 Saturated calcium hydroxide solution 0 1 666 4 003 6 984 9 464 13 423 5 1 668 3 999 6 951 9 395 13 207 10 1 670 3 998 6 923 9 332 13 003 15 1 672 3 999 6 900 9 276 12 810 20 1 675 4 002 6 881 9...

Страница 83: ...the solution can only be determined by equation What is important here is that ORP is determined by the ratio of activity between the oxidant Fe3 and the reductant Fe2 using the equation aFe2 aFe3 In...

Страница 84: ...page presents the knowhow we have cultivated over many years for example how temperature affects measured values and what to do when you want to measure various samples By registering as a user you c...

Страница 85: ...ample you want to measure For details refer to the catalogue or our website or contact your dealer Part name Part number Remarks AC adapter Cable UL 120 V 3014031951 AC adapter Cable EU 230 V 30140319...

Страница 86: ...M E M O 70 HORIBA...

Страница 87: ...2 Miyanohigashi Kisshoin Minami ku Kyoto 601 8510 Japan http www horiba com...

Страница 88: ......

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