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Summary of Contents for Hanna Instruments HI 84185
- Page 1 Instruction Manual HI 84185 ISE Ammonia Nitrogen Meter w w w. h a n n a i n s t . c o m...
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Page 2: Table Of Contents
HI 84185-01 - 115 Vac power supply HI 84185-02 - 230 Vac power supply WARRA (NTY All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA. -
Page 3: Preliminary Examination
PRELIMINARY EXAMINATION Please examine this product carefully. Make sure that the instrument is not damaged. If any damage occurred during shipment, please notify your Dealer. Each HI 84185 instrument is supplied complete with: • Reagents set for 20 tests • One 1000 µL automatic pipette •... -
Page 4: General Description
GENERAL DESCRIPTION The HI 84185 is a low cost, easy to use, ammonia nitrogen (N-NH ) ISE instrument that performs automatic analysis with all the necessary calculations assuring to the user a simple and effective interface. The instrument comes with a powerful and effective built-in algorithm to analyse the shape of the ISE electrode response and to determine the reaction completion. -
Page 5: Specifications
SPECIFICATIONS Range 0 to 50 mg/L (ppm) N-NH Resolution 1 mg/L (ppm) N-NH Accuracy ±5% of reading Sample volume 50 mL Temperature Compensation Automatic from 0 to 80 °C Electrode HI 61101 Ammonia combined ISE Temperature Probe HI 7662-T (included) LOG feature 50 samples Stirring speed... -
Page 6: Principle Of Operation
PRINCIPLE OF OPERATION The determination of ammonia nitrogen concentration is made according to double standard addition method. This technique enables an unknown concentration and the electrode’s slope factor to be determined simultaneously. The Automatic Temperature compensation is available using HI 7662-T temperature probe. By setting the electrode isopotential point and enabling temperature compensation option in Setup menu, the obtained concentration is temperature compensated. -
Page 7: Functional Description
FUNCTIONAL DESCRIPTION INSTRUMENT DESCRIPTION FRONT PANEL 1) Graphic LCD 2) Functional keys 3) Keypad 4) Electrode holder REAR PANEL 5) Ammonia electrode BNC electrode connector 6) Temperature probe Power switch 7) Electrode holder Fuse 8) Reference socket Power cable connector 9) Temperature probe socket... -
Page 8: Start Up
KEYPAD DESCRIPTION 1) ESC - to leave the current screen and to return either to the previous screen or to the main screen. In the setup parameter modifying mode by pressing ESC the value is not modified. - to modify a parameter value, to scroll the information from the instrument’s setup 3) HELP - to access/leave the instrument’s contextual help - to modify a parameter value, to scroll the information from the instrument’s setup 5) Functional Keys... -
Page 9: Guide To Display Codes
GUIDE TO DISPLAY CODES During the instrument’s operation a series of informations are displayed on the LCD. 1) current time information area 2) instrument status area 3) functional keys area 4) stability criteria 5) stirrer and reading status area Icons from the stirrer and reading status area When the input reading is unstable. - Page 10 If the difference between the temperature of the sample confirmed at the first step and the subsequent readings is greater than 3°C and the temperature compensation feature is disabled in Setup, the temperature warning icon will blink and the message “WARNING: Large temperature change!” will be displayed.
- Page 11 Result screen The ion concentration is displayed in mg/L (ppm) N-NH . If the concentration is out of range, the instrument displays the upper range limit blinking. Press LOG to save the measured concentration. A message indicating the free log space will be displayed for a few seconds. If the free log space is under 10% this message will be permanently displayed.
- Page 12 Isopotential point Options: 1.0 to 50.0 mg/L (ppm). Press Modify to access the isopotential point concentration modify screen. Press to increase/decrease the isopotential point concentration. Press Accept to confirm the value or ESC to return to the Setup menu without saving. If the temperature compensation feature is disabled the meter will display “None”...
- Page 13 Date/Time This option is used to set the instrument’s date and time. Press Modify to access the date/time modify screen. Date/Time modify screen Press to select the value to be modified (year, month, day, hour, minute or second) and then press / in order to increase/decrease the value.
- Page 14 Beep status Options: Enable, Disable This option enables/disables the beep feature. Press the functional key in order to select the new option. When enabled, beep sounds as a short beep every time a key is pressed or when the reading must be confirmed. In auto confirm mode the instrument will beep until the standard addition is detected.
- Page 15 Recall screens Displays the list of all the memorized results. This list includes the record’s number, the concentration value, the concentration unit and the date. Press / to toggle between the stored records. Press More to view a complete set of data corresponding to the selected record.
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Page 16: Tips For An Accurate Measurement
TIPS FOR AN ACCURATE MEASUREMENT The instructions listed bellow should be carefully followed during analysis to ensure best accuracy. • Rinse the electrode with distilled or deionized water between samples, and blot dry taking care not to touch de membrane. •... - Page 17 • Use the 1000 µL automatic pipette to add exactly 1 mL of HI 84185-1 Standard and immediatly close the stopper. • Wait until the reading is stable, CFM key displayed, if the “Reading confirm” option is selected, and then press CFM.
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Page 18: Fuse Replacement
FUSE REPLACEMENT To change the fuse follow next steps: • Disconnect the power cord from the rear panel of the instrument. • Pull out the fuse holder located near the power cord connector. • Replace the fuse with a similar one. •... - Page 19 INNER ELECTRODE CHECK • Before assembling the electrode for the first time or reactivating it after storage, the inner electrode assembly should be hydrated then tested as a pH electrode. • Take two beakers and pour 50 mL de-ionized water in each of them. •...
- Page 20 • Slide electrode cap and spring down cable and screw top cap onto outer body until fully engaged. Afterwards, unscrew top cap two times. Do not invert electrode. Keep the membrane side down. • Gently pull spring loaded cable back and slowly release to allow filling solution to migrate between membrane and glass electrode inner body.
- Page 21 QUICK CHECK OF THE ELECTRODE SLOPE • Connect the electrode and the reference electrode to the instrument. • Press and hold down ESC, and HELP keys simultaneously and power on the meter. Wait until the instrument enters in the reading check mode. •...
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Page 22: Accessories
ACCESSORIES REAGENT SETS HI 4001-40 Ammonia filling solution HI 4001-45 Ammonia conditioning and storage solution HI 4000-47 Buffer replacement kit HI 84185-20 Reagent set HI 84185-0 ISA for Ammonia electrode (500 mL) HI 84185-1 Standard 1 for Ammonia electrode (500 mL) HI 85185-2 Standard 2 for Ammonia electrode (500 mL) OTHER ACCESSORIES... -
Page 23: Warranty
If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service Department and then send it with shipment costs prepaid. - Page 24 SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel.
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