Hanna-instruments HI 84430 Manual do Utilizador Página 1

1Instruction ManualHI 84430TOTAL ACIDITYMINITITRATOR & pH METERfor Water Analysiswww.hannainst.com

1918ELECTRODE CALIBRATION PROCEDUREIt is recommended to calibrate the instrument frequently, especially if high accuracy is required.The pH electrode

2120• The calibrated value will be shown on the display and the third expected buffer value will beautomatically selected.• After the second calibrati

2322• If the measured offset isn’t within the preset limits the meter will display the message “BufferContaminated” alternatively with ”Electrode Dirt

2524•Press CAL to access the titration calibration menu where electrode and pump calibration may be accessed.•Press HELP to view the contextual help.

2726• Press Pump.The next screen will be displayed.• Press Start.• After the pump calibration is started, on the upper right side of the display two

2928Verify: The instrument has been calibrated (pH and pump) before performing a lot of titrations.An electrode calibration in at least one point (8.3

3130Note: If the end-point is not reached or it is not recognized or the input reading is out of range,an error message will be displayed. The titrati

3332TITRATOR GLP INFORMATIONPress MENU while in Titration mode and then GLP.From this screen it is possible to select between viewing the electrode

3534Press LOG to memorize the current reading. A message indicating the free log space will bedisplayed for a few seconds.In order to take pH measure

3736pH METER GLP INFORMATIONThe pH meter GLP screens references the last pH calibration data. GLP is an acronym for GoodLaboratory Practice.To view t

32All rights are reserved. Reproduction in whole or in part is prohibited without the written consentof the copyright owner, Hanna Instruments Inc., W

3938TEMPERATURE CALIBRATION PROCEDURE (for technical personnel only)All the instruments are factory calibrated for temperature.HANNA’s temperature pro

4140-Reading status (1 char): R-in range, O - over range, U - under range.-pH reading with sign and decimal point (7 chars)-Temperature, with sign and

4342-Overrage for the measured value: R-in range, O-over range, U-under range.-Measured value (7 chars): for the pH meter log this is the measured pH

4544ELECTRODE CONDITIONING AND MAINTENANCEpH CLEANING PROCEDURE• GeneralSoak in Hanna HI 7061 or HI 8061 General Cleaning Solution forapproximately ½

4746HI 84430 is warranteed for two years against defects in workmanship and materials when used for itsintended purpose and maintained according to th

48MAN84430R103/08SALES AND TECHNICAL SERVICE CONTACTSSALES AND TECHNICAL SERVICE CONTACTSSALES AND TECHNICAL SERVICE CONTACTSSALES AND TECHNICAL SERVI

54The instrument employs a powerful and effective built-in algorithm to analyze the pH response todetermine the exact pH endpoint, then uses this to m

76REQUIRED REAGENTSCode Description Quantity/TestHI 84430 - 50 Titrant (Low Range) 1 mLHI 84430 - 51 Titrant (High Range) 1 mLHI 84430 - 55M Pump Cali

98PRINCIPLE OF OPERATIONWater acidity determination is based on the neutralization of all acidic species contained in watersamples by titration with b

1110PERISTALTIC PUMPPeristaltic pumps are self priming. Liquid never contacts the pump components. The titrant tubingis pressed along the rotating rol

1312From your knowledge of expected concentrations, use the table below to determine whichsettings are appropriate:Use Total LR or Strong LR for water

1514Press the corresponding function key to change thelanguage.If the new selected language cannot be loaded, thepreviously selected language will be

1716Press Select to view the firmware version, languageversion, mV factory calibration date and time andtemperature factory calibration date and time.