Hanna Instruments HI 9914 Instruction Manual Download | Manualshive

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Instruction Manual

HI 9914

Wall mounted

Fertigation

Controller

w w w . h a n n a i n s t . c o m

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Summary of Contents for HI 9914

Page 1: ...1 Instruction Manual HI 9914 Wall mounted Fertigation Controller w w w h a n n a i n s t c o m...

Page 2: ...y on two large LCDs with backlight feature for a best easy reading TheECprobeisdesignedwithabuilt intemperaturesensorwhichallows the controller to automatically compensate for the temperature effect T...

Page 3: ...erdosing of fertilizer or acid The controller is designed with relay outputs for pH and conductivity control 2A 240V each one corresponding to a status LED for visual check Three level sensors are use...

Page 4: ...eeding pump output 20 Circulation pump output 21 Alarm output 1 LCD for Conductivity readings 2 EC SET button 3 EC slope adjustment trimmer 4 EC MEAsure button 5 Alarm LED 6 Reset button 7 LCD for pH...

Page 5: ...djustable from 0 5 to 14 0 pH Calibration Manual 2 point with offset 2 pH and slope 80 to 120 trimmers Analogoutput 0 7V 5 0 5V pH Controller Output 2A 220V relay Other Features Timer Adjustable from...

Page 6: ...erenttankvolumesandwithvariouscomplex ity of tank assembly For proper operation of the controller the tank assemblies must be set minding the following the pH electrode and EC probe should rapidly det...

Page 7: ...less of the water composition or level The controllerwillrefillthetankifthewatergoesundernormallevelforabout 15 minutes or if the fill button is pressed Note The inlet of the circulation pump must be...

Page 8: ...the NC pin when is on the COMMON pin is connected with the NO pin The NC pin is not accessible for the pH and EC pumps and the COMMON Place the low level sensor to indicate the minimum water level fo...

Page 9: ...onnect one pin of the source to the COMMON pin of the alarm output Connect the alarm device between the NO output pin and the remaining source pin Acid and fertilizer dosing pump connection The pH and...

Page 10: ...ke sure the controller is completely wired and all the connections for pumps alarm probes etc have been done Connect the mains power wires to the power supply input pins Replace the right panel lid an...

Page 11: ...e conductivity and pH values are good for at least 30 seconds the controller goes to step 5 If the normal level sensor remains open for about 15 minutes the controller goes back to step 3 Step 5 The C...

Page 12: ...is reached SETTINGTHEECCONTROL To adjust the Conductivity setpoint Push the SET button close to EC display to read the setpoint value ALARM CONDITIONS When an alarm condition is reached the ALARM LED...

Page 13: ...swillbeactivefor 3 minutes and off for 12 minutes 3 12 15 minutes Setting the timer In order to activate the timed dosing feature put the TIMED CONT switch to the TIMED position To set the duty cycle...

Page 14: ...25 C Immerse the probe in the beaker ensuring that the holes on the probe sleevearecompletelycovered CALIBRATION Disconnect the pumps the water nozzle and the alarm or assure that the start of one of...

Page 15: ...trode stem or bulb If any scratches or cracks are present replace the electrode The connector must be perfectly clean and dry Cleaning procedure Soak the electrode in HI 7061 General Cleaning Solution...

Page 16: ...perly or constantly reads zero or a value close to it Check the probe and cable for cracks and replace it if needed If the controller display shows 1 The cable may be shorted or the probe broken Repla...

Page 17: ...ottle EC calibration solutions HI7031L 1 41 mS cm calibration solution 500 mL bottle HI7039L 5 00 mS cm calibration solution 500 mL bottle Maintenancesolutions HI70300L Electrode storage solution 500...

Page 18: ...ystem utilized in nursery and cutting plants cultivation Reference Principitecnico agronomicidellafertirrigazioneedelfuorisuolo pag 115 publishedby VenetoAgricoltura CentroSperimentaleOrtofloricoloPod...

Page 19: ...37 36 APPENDIX C INSTALLATIONEXAMPLES Block diagram for a typical installation of an irrigation system with HI9914controller Block diagram for an irrigation system with recirculation circuit...

Page 20: ...ribed main tenance are not covered This warranty is limited to free of charge or replacement of the meter only if any malfunctioning is due to manufac turing defects If service is required contact the...

Page 21: ...942 Japan Tel 03 3258 9565 Fax 03 3258 9567 Korea Tel 02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fax 603 5638 9829 Singapore Tel 6296 7118 Fax 6291 6906 SouthAfrica Tel 011 615 6076 Fax...

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