Hanna-instruments HI 9321 Manual do Utilizador

Instruction ManualHI 9321HI 931400HI 931401Microprocessor-basedBench pH/mV/°C Meterswww.hannainst.comThese Instruments are inCompliance with the CE Di

10In order to take accurate pH measurements, make sure that theinstrument has been calibrated before use (see page 12).For more accurate results, it i

11ORP MEASUREMENTSPress RANGE.Submerge the ORP or ISE electrode tip (4cm/1½") into the sample.Allow a few minutes for the reading to stabi-lize.I

12RESET BUTTONThe RESET button (see pages 4-5, #V) should be used when theinstrument displays erroneous messages due to strong electrical inter-ferenc

13PROCEDURECalibration has a choice of 5 memorized buffers: 4.01, 6.86, 7.01,9.18 and 10.01 pH.It is always recommended to perform a two-point calibra

14close to the selected buffer, the meterstores the reading. The buffer value isthen displayed on the primary LCD andthe secondary LCD will display &q

15Note: The meter will automatically skip the buffer that was used forthe first calibration. pH 6.86 and pH 7.01 as well as 9.18and 10.01 pairs of buf

16pH VALUES AT VARIOUSTEMPERATURESTEMP pH VALUES°C °F 4.01 6.86 7.01 9.18 10.01051015202530354045505560657032415059687786951041131221311401491584.014.

17TEMPERATURE AND mV CALIBRATIONThe pH meter has been factory calibrated for temperature and mV.The temperature probes and ORP electrodes are intercha

18TROUBLESHOOTING GUIDESymptoms Problem SolutionThe meter is slow inresponding or givesfaulty readingsThe meter does notaccept the 2nd buffersolution

19ELECTRODE CONDITIONING& MAINTENANCEPREPARATIONRemove the protective cap.DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT.This is normal with e

2Dear Customer,Thank you for choosing a Hanna Product. It is recommended that youread this instruction manual carefully before using the instrument.Th

20For refillable electrodes:If the filling solution (electrolyte) is more than 2½ cm (1") below thefill hole, add HI 7082 or HI 8082 3.5M KCl Ele

21CLEANING PROCEDUREGeneral Soak in Hanna HI 7061 or HI 8061 General CleaningSolution for approximately ½ hour.Removal of films, dirt or deposits on t

22Since the resistance of the pH electrode is in the 200 Mohm range,the current across the membrane is in the pico Ampere range. Largecurrents can dis

23High concentrations of sodium ions interfere with readings in alkalinesolutions. The pH at which the interference starts to be significantdepends up

24ADDITIONAL CALIBRATIONPROCEDURES & INFORMATION(for technical personnel only)TEMPERATURE CALIBRATIONInitial Preparation• Prepare a vessel contain

25• When the temperature reading has stabi-lized, use the ↑↑↑↑↑°C or ↓↓↓↓↓°C keys to set thereading on the secondary LCD to that ofthe reference therm

26The following baud rate can be selected with↑↑↑↑↑°C and ↓↓↓↓↓°C: 150, 300, 600, 1200 (factorysetting) and 2400.Press CFM to confirm the setting and

27DWC is equivalent to pressing the ↓↓↓↓↓°C keyMEM is equivalent to pressing the MEM keyMRR is equivalent to pressing the MR keyCOM is equivalent to p

28ELECTRODE STORAGE SOLUTIONHI 70300L Storage Solution, 460 mLELECTRODE STORAGE SOLUTION IN FDA APPROVEDBOTTLESHI 80300L Storage Solution, 460 mLELECT

29pH & ORP ELECTRODESAll electrodes part numbers ending in B are supplied with a BNCconnector and 1 m (3.3') cable.HI 1043BGlass-body, double

3PRELIMINARY EXAMINATIONThe Hanna Instruments HI 9321, HI 931400 and HI 931401 aremicroprocessor-based bench meters for pH, mV (ORP and ISE) andtemper

30HI 1330BGlass-body, semimicro, single junction, refillable, combination pHelectrode. Use: laboratory, vials.HI 1331BGlass-body, semimicro, single ju

31FC 100BPlastic-body (Kynar®), double junction, refillable, combination pHelectrode. Use: general purpose for food industry.FC 200BPlastic-body (Kyna

32FC 911BPlastic-body (Kynar®), double junction, refillable with built-in ampli-fier, combination pH electrode. Use: very high humidity.HI 1413BGlass-

33HI 5412Glass-body, single Calomel reference half-cell electrode, refillablewith 4mm plug with 1m (3.3') cable. Use: general purpose withconsta

34ACCESSORIESHI 710005 Transformer 110VAC to 12 VDCHI 710006 Transformer 220VAC to 12 VDCChecktempC Pocket-size thermometer (range -50.0 to 150.0°C)H

35CE DECLARATION OF CONFORMITYHanna Instruments reserves the right to modify the design,construction and appearance of its products without advancenot

www.hannainst.comMAN9321R2 03/97

4FUNCTIONAL DESCRIPTION HI 9321MR°CMEMON/OFF°CRANGECFMCALCFM Confirm when ready/ Select buffer 2 valueCFM Confirm when ready/ Select buffer 1 valueCAL

5I. BNC SocketII. Reference Electrode SocketIII. Reference Electrode SocketIV. Temperature Probe SocketV. Reset ButtonVI. VDC Power Socket (for HI 710

6SPECIFICATIONS HI 9321& HI 931400Range pH 0.00 to 14.00ISE ±399.9 mVORP ±1999 mV°C 0.0 to 100.0Resolution pH 0.01 ISE 0.1 mVORP 1 mV°C 0.1Accurac

7SPECIFICATIONS HI 931401Range pH 0.00 to 14.00 / 0.000 to 14.000mV ±999.9 (ISE & ORP)°C 0.0 to 100.0Resolution pH 0.01 / 0.001 mV 0.1°C 0.1Accura

8FUNCTIONAL DESCRIPTION OFHI 931401 LCDPrimary DisplaySecondary Display°C12pHpHmVCALMEMNOT READYCON WRONGLOW BATBUFFUNCTIONAL DESCRIPTION OFHI 9231 &

9OPERATIONAL GUIDEELECTRODE AND PROBE CONNECTIONSFor combination pH or ORP electrodes (with internal reference) plugthe electrode's BNC to the so