Hanna-instruments HI 253 Manuel d'utilisateur Page 1

1Instruction ManualHI 253Microprocessor-BasedpH/mV/Ion/ºCBench MeterpHFunctionspH Calibration - 3 pointsRCLLOGCLRSETCCRANGEGLPCFMCALpH / ORP / Ion Met

10pH CALIBRATIONCalibrate the instrument frequently, especially if high accuracy is required.The instrument should be recalibrated :• Whenever the pH

11• The “ ” tag will blink on the LCD until the reading isstable.• When the reading is stable and close to the selected buffer, the“READY” tag will be

12Note: • If the value measured by the instrument is not close to theselected buffer, “WRONG” “BUF” and “WRONG” “ ” tags willblink alternately. In t

13ION CALIBRATIONFor greatest accuracy, it is recommended to calibrate the instrument frequently.Due to electrode conditioning time, the electrode mus

14Note: The instrument will automatically skip the buffer used for the first point.• After the first calibration point is confirmed, immerse the ISE e

15GOOD LABORATORY PRACTICE (GLP)GLP is a set of functions that allows storage and retrieval of data regarding themaintenance and status of the electro

16• The pH calibration slope (the GLP slope is the average of the calibrationslopes; the percentage is referred to the ideal value of 59.16 mV/pH).• T

17or the number of days until the calibration alarm will be displayed.or if expired (7 days ago).• The instrument ID.LAST ION CALIBRATION DATALast Ion

18LOGGING FUNCTIONUp to 50 LOG samples can be stored into memory.LOGGING THE CURRENT DATATo store the current reading into memory press LOG while the

19If the log space is full, “FULL LOC” message will be displayed and no moredata will be saved.When LOG is pressed, a complete set of information is s

2TABLE OF CONTENTSWARRANTY ... 2

20LOGDATELOG mV• The temperature value on the primary LCD and the record number onthe secondary LCD.Note: When the pH, mV or temperature is displayed,

21LOG• The “dEL” message on the primary LCD and the selected record on thesecondary LCD, along with ”LOG” tag.Note: • If one of the ARROW keys is pres

22SETUPSetup mode allows viewing and modifying the following parameters:• Current Time• Current Date• pH Resolution• Ion Charge• Beep Status• Baud Rat

23CURRENT DATE SETPress CAL when the current date is displayed. The year will start blinking.Press the ARROW keys to change the year.Press RANGE. The

24Press the ARROW keys to change the ion charge.Note: To select the right ion charge, different ion types and their charge arepresented in the table b

25CALINTVSERIAL COMMUNICATION COMMAND PREFIX SETPress CAL when the command prefix is displayed. The command prefix (0 to47) will start blinking.Press

26• Immerse the temperature probe in the second vessel as near as possible tothe reference thermometer. Allow a few seconds for the probe to stabilize

27• Use the ARROW keys to set the reading on the secondary LCD to that ofthe hot water.• When the reading is stable and close to the selectedcalibrati

28RELATIVE mV CALIBRATION• Press CAL when the instrument is in RELATIVE mV measurement mode.The “mV” and “ ” tags will blink. Absolute mV is displayed

29Data transmission from the instrument to the PC can be done with the HI92000 Windows® compatible software (optional). HI 92000 also offersgraphing a

3PRELIMINARY EXAMINATIONRemove the instrument from the packing material and examine it carefully tomake sure that no damage has occurred during shippi

30CHR n Change the instrument range according with the parametervalue (n):• n=0 pH range/0.001 resolution• n=1 pH range/0.01 resolution• n=2 pH range/

31The temperature has an effect on pH. The calibration buffer solutions areaffected by temperature changes to a lesser degree than normal solutions.Du

32PREPARATION PROCEDURERemove the protective cap of the pH electrode.DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal withelectrodes. Th

33For refillable electrodes:If the filling solution (electrolyte) is more than 2½ cm (1”) below the fill hole,add HI 7082 or HI 8082 3.5M KCl Electrol

34CLEANING PROCEDURE• General Soak in Hanna HI 7061 or HI 8061 GeneralCleaning Solution for approximately ½ hour.• Protein Soak in Hanna HI 7073 or HI

35TROUBLESHOOTING GUIDESMOTPMYS MELBORP NOITULOSevissecxe/esnoperwolS.tfird.edortceleHpytriD nipitedortceleehtkaoS1608IHro1607IHsetunim03rofnoituloseh

36Typical Electrode LifeAmbient Temperature 1 – 3 years90 ºC Less than 4 months120 ºC Less than 1 monthAlkaline ErrorHigh concentrations of sodium ion

37pH BUFFER SOLUTIONSHI 70004P pH 4.01 Buffer Sachets, 20 mL, 25 pcsHI 70007P pH 7.01 Buffer Sachets, 20 mL, 25 pcsHI 70010P pH 10.01 Buffer Sachets,

38ORP PRETREATMENT SOLUTIONSHI 7091L Reducing Pretreatment Solution, 460 mLHI 7092L Oxidizing Pretreatment Solution, 460 mLpH ELECTRODESAll electrodes

39HI 1330BGlass-body, semimicro, single junction, refillable, combination pH electrode.Use: laboratory, vials.HI 1331BGlass-body, semimicro, single ju

41) Liquid Crystal Display (LCD).2) CFM/GLP key, to confirm different values or to display Good LaboratoryPractice information.3) CAL key, to enter an

40120 mm4.7"12 mm0.5"FC 10075 mm2.95"6 mm0.25"FC 200120 mm4.7"12 mm0.5"FC 210120 mm4.7"12 mm0.5"9.5mm DIA0.37&

41Kynar® is registered Trademark of “Pennwalt Corp.”Ultem® is registered Trademark of “General Electric Co.”HI 1413BGlass-body, single junction, flat

42EXTENSION CABLE FOR SCREW-TYPE ELECTRODES(SCREW TO BNC ADAPTER)HI 7855/1 Extension cable 1 m (3.3') longHI 7855/3 Extension cable 3 m (9.9&ap

43RECOMMENDATIONS FOR USERSBefore using this product, make sure that it is entirely suitable for theenvironment in which it is used.Operation of this

44Australia:Tel. (03) 9769.0666 • Fax (03) 9769.0699China:Tel. (10) 88570068 • Fax (10) 88570060Egypt:Tel. & Fax (02) 2758.683Germany:Tel. (07851)

5HI 253SPECIFICATIONSEGNARHp0.61ot0.2–Hp00.61ot00.2–Hp000.61ot000.2–Vm9.996±Vm0002±mpp99991ot100.0Cº0.021ot9.9–NOITULOSERHp1.0Hp10.0Hp100.0)Vm9.996±(V

6noitarbilaCnoI,noitarbilactniop-owtotpUelbaliavasreffub5)0001,001,01,1,1.0(erutarepmeTnoitasnepmoc:morfcitamotuArolaunaMCº0.021ot9.9–edortcelEHp B131

7OPERATIONAL GUIDEPOWER CONNECTIONPlug the 12 VDC adapter into the power supply socket.Note: This instrument uses non volatile memory to retain the pH

8If measurements are taken successively in different samples, it is recommendedto rinse the electrode thoroughly with deionized water or tap water and

9RELATIVE mV MEASUREMENTS• Press RANGE until “rEL” message will be displayed on the secondary LCD linefor about one second and “mV” tag will blink. Af