Hanna-instruments HI 9910 Manuel d'utilisateur Page 1

Instruction ManualHI 9910 - HI 9911HI 9920Wall MountedpH & ORPControllershttp://www.hannainst.comThese Instruments are inCompliance with the CE Di

10Unplug the instrument from the power supply beforewiring and replacing the fuses.242524. Female BNC socket for combination pH electrode25. 4-mm Bana

11Specifications HI 9911RANGE 0.00 to 14.00 pHRESOLUTION 0.01 pHACCURACY ±0.02 pH(@20°C/68°F)TYPICAL EMC ±0.1 pHDEVIATIONmA OUTPUT User-selectable 0 t

12FUNCTIONAL DIAGRAM HI 9920FUNCTIONAL DIAGRAM HI 9920FUNCTIONAL DIAGRAM HI 9920FUNCTIONAL DIAGRAM HI 9920FUNCTIONAL DIAGRAM HI 9920 ORP CONTROLLER OR

13242524. Female BNC socket for combination ORP electrode25. 4-mm Banana socket for ground probe20. Powered dosage terminals (Relay)21. 110/115V or 22

14CONECTIONS & WIRINGCONECTIONS & WIRINGCONECTIONS & WIRINGCONECTIONS & WIRINGCONECTIONS & WIRINGSpecifications HI 9920RANGE -500

15ELECTRODE WITHBNC CONNECTIONWIRING ACCESSPORTSMATCHING PIN FOR GROUND PROBE•BeforeBeforeBeforeBeforeBefore connecting the controller to the mains, w

16RELAY CONNECTIONS• Wire the external device or devices (pumps or electrovalves)directly to the relay terminal strip of the controller (see 20 -Func

17ALARMONOFF• The alarm ON/OFF switch is only to disabledisabledisabledisabledisablethe alarm terminalthe alarm terminalthe alarm terminalthe alarm te

18Temp. compensationselectorATCMTCMTC°C-1080100302060704050Pt 100 1-greyPt 100 2-brownPt 100 3-yellowPt 100 shield1-grey2-brown3-yellowshieldTEMPERATU

19SETREAD8.00All controllers provide for a visual dosing statusthrough an LED. With HI 9910 and HI 9920 theDOSING LED lights up when the controller is

2PRELIMINARY EXAMINATION ... 3GENERAL DESCRIPTION...

20SETREAD4cm(1½")HI 7007Temp. compensationselectorATCMTCMTC°C-1080100302060704050Make sure that the pH electrode and any ground probe have beenpr

214cm(1½")HI 7004COARSEFINE SLOPEOFFSETSET POINTpH4.01as that on the Checktemp and make sure the selector is in theMTC position (see 17 - Functio

22COARSE FINECALmVORPSET POINT230ORP CALIBRATIONORP CALIBRATIONORP CALIBRATIONORP CALIBRATIONORP CALIBRATION(HI 9920)4cm(1½")HI 7020SETREADMake s

23SETREAD8.00COARSEFINE SLOPEOFFSETSET POINTpH6.00COARSEFINE SLOPEOFFSETSET POINTpH6.18ACIDALKMake sure that the electrode (and any ground probe) is p

24ACIDALKe.g. Dosing base liquidsSet point = pH 6.00Measured value = pH 4.00To adjust the sample stream to the setpoint, you need todose base, therefo

25650Using a small screwdriver, adjust the “ALKALINE SET” trimmers. Firstadjust the “COARSE” trimmer and then fine tune with the “FINE”trimmer (see 3

26PROPORTIONAL CONTROLPROPORTIONAL CONTROLPROPORTIONAL CONTROLPROPORTIONAL CONTROLPROPORTIONAL CONTROLIn order to optimize the controlling process and

27e.g. pH proportional controlSetpoint = pH 5.00Measured value = 6.50Delta = 6.5 - 5.0 = 1.5 pHProportional settings: pH set to 2 and time cycle to 60

28The controller will be dosing reductants to reduce redox to the desiredvalue. Since it is 25/100 = 25% away from the ideal setting, it willkeep the

29OVERDOSAGE TIMEROVERDOSAGE TIMEROVERDOSAGE TIMEROVERDOSAGE TIMEROVERDOSAGE TIMERAll models provide for an overdosage alarmsystem ranging from 1 to 1

3PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATIONPRELIMINARY EXAMINATIONPRELIMINARY EXAMINATIONPRELIMINARY EXAMINATIONGENERAL DESCRIPTIONGENERAL DESCRIP

30Please refer to the following chart for a more accurate pH calibration:For instance, if the buffer temperature is 25°C (77°F), calibratethe meter to

31Redox measurements allow the quantification of the oxidizing orreducing power of a solution, and are commonly expressed in mV.Oxidation may be defin

32between 200 and 250 mV.When not in use, the electrode tip should be kept moist in order forthe reference junction, especially Teflon models, to resp

33ELECTRODE CONDITIONINGELECTRODE CONDITIONINGELECTRODE CONDITIONINGELECTRODE CONDITIONINGELECTRODE CONDITIONING& MAINTENANCE& MAINTENANCE&

34SUGGESTED INSTALLATIONSSUGGESTED INSTALLATIONSSUGGESTED INSTALLATIONSSUGGESTED INSTALLATIONSSUGGESTED INSTALLATIONSfor pH/ORP ELECTRODESfor pH/ORP E

35MEDIUM DISTANCE, INDOOR/OUTDOORINSTALLATIONWhen an outdoor installation is required, it is normally necessary toinstall a transmitter to obtain accu

36pH CALIBRATION SOLUTIONSHI 7004L pH 4.01 buffer solution, 460 mLHI 7007L pH 7.01 buffer solution, 460 mLHI 7010L pH 10.01 buffer solution, 460 mLORP

37All Hanna controllers are warranted for two years against defectsin workmanship and materials when used for their intended purposeand maintained acc

38• CABLES AND CONNECTORS• CALIBRATION AND MAINTENANCE SOLUTIONS• CHEMICAL TEST KITS• CHLORINE METERS• CONDUCTIVITY/TDS METERS• DISSOLVED OXYGEN METER

39CE DECLARATION OF CONFORMITYCE DECLARATION OF CONFORMITYCE DECLARATION OF CONFORMITYCE DECLARATION OF CONFORMITYCE DECLARATION OF CONFORMITYHI 9910

4Figure 2 illustrates the controls and terminals on the HI 9910 pHcontroller. Layouts vary from model to model based on their featuresand capabilities

MAN9910-20 10/99http://www.hannainst.comHANNA LITERATUREHANNA LITERATUREHANNA LITERATUREHANNA LITERATUREHANNA LITERATUREPRINTED IN PORTUGALHanna publ

53.8“96.9 mm25 mm1“75 mm3“Fig. 3227.8 mm9“188.6 mm7.4“221.8 mm8.7“174.8 mm6.9“Fig. 4Figure 3 is a dimensioned, bottom view of the wall mountedcontroll

6FUNCTIONAL DIAGRAM HI 9910FUNCTIONAL DIAGRAM HI 9910FUNCTIONAL DIAGRAM HI 9910FUNCTIONAL DIAGRAM HI 9910FUNCTIONAL DIAGRAM HI 9910SINGLE SETPOINT, SI

7Unplug the instrument from the power supply beforewiring and replacing the fuses.242524. Female BNC socket for combination pH electrode25. 4-mm Banan

8Specifications HI 9910RANGE 0.00 to 14.00 pHRESOLUTION 0.01 pHACCURACY ±0.02 pH(@20°C/68°F)TYPICAL EMC ±0.1 pHDEVIATIONmA OUTPUT User-selectable 0 to

9FUNCTIONAL DIAGRAM HI 9911FUNCTIONAL DIAGRAM HI 9911FUNCTIONAL DIAGRAM HI 9911FUNCTIONAL DIAGRAM HI 9911FUNCTIONAL DIAGRAM HI 9911DUAL SETPOINT, DUAL