Hanna-instruments HI 84181 Manual de usuario

1Instruction ManualHI 84181ISE PotassiumMeterwww.hannainst.com

10Setup screensStability criteriaOptions: Accurate, Medium, Fast.Press the corresponding functional key to select the desired option.Select Accura

11Time formatOptions: AM/PM or 24 hours.Press the functional key in order to change the time format.Date/Time modify screenPress / to select the valu

12LanguageOptions: Up to four languagesThis option is used to change the instrument’s display language.Press the corresponding functional key in orde

13Displays the list of all the memorised results. This listincludes the record’s number, the concentration value, theconcentration unit and the date.P

14MEASUREMENT PROCEDURE• Fill the beaker up to the 50 mL mark with sample.Use the 2000 µL automatic pipette to add 2 mL ofHI 84181-0 ISA, place the st

15Notes:• If the reading is out of range, the upper range value isdisplayed blinking.• If the evaluated slope is out of 30-140 % range theinstrument d

16PREPARATION PROCEDUREPreparation of potassium electrode:• Remove the protective cap from the HI 61014 potassium sensor’s tip.• Screw the potassium c

17CLEANING PROCEDURE• Rinse the potassium electrode with deionised water. Check to see if the small scratches havebeen eliminated.• Soak the potassium

18PERIODIC MAINTENANCEInspect the electrode and the cable. The cable used for connection to the instrument must beintact and there must be no points o

19REAGENTSHI 7076 Electrode filling solutionHI 84181-20 Reagent set for 20 testsHI 84181-0 ISA for Potassium electrode (500 mL)HI 84181-1 Standard 1 f

2All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of thecopyright owner, Hanna Instruments Inc., Wo

20SALES AND TECHNICAL SERVICE CONTACTSSALES AND TECHNICAL SERVICE CONTACTSSALES AND TECHNICAL SERVICE CONTACTSSALES AND TECHNICAL SERVICE CONTACTSSALE

3PRELIMINARY EXAMINATIONPlease examine this product carefully. Make sure that the instrument is not damaged. If anydamage occured during shipment, ple

4SIGNIFICANCE OF USEPotassium ion (K+) is absorbed in vine from earth. Unlike other essential nutrients potassiumremains in ionic form and passes to t

5PRINCIPLE OF OPERATIONThe determination of potassium concentration is made according to double standard addition method.This technique enables an unk

6REAR PANEL5) Potassium half cell 10) Temperature probe socket6) Reference half cell 11) BNC electrode connector7) Temperature probe 12) Power swit

7KEYPAD DESCRIPTION1) ESC - to leave the current screen and to return either to the previous screen or to the main screen. In the setup paramete

8When the input reading is unstable.When the stirrer is on.Temperature warning (only if the “Temperature compensation” is disabled). Thewarning symbol

9Result screenThe ion concentration is displayed in g/L (ppt) K+. If theconcentration is out of range, the instrument displays the upperrange limit bl