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Summary of Contents for Hanna Instruments HI 84430
- Page 1 Instruction Manual HI 84430 TOTAL ACIDITY MINITITRATOR & pH METER for Water Analysis w w w. h a n n a i n s t . c o m...
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Page 2: Table Of Contents
ELECTRODE CONDITIONING & MAINTENANCE ..............45 ACCESSORIES ........................46 WARRANTY ........................47 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
• to treat the samples that contain polyvalent cations with hydrogen peroxide in order to the sample to the end point. The HI 84430 has a simple and accurate peristaltic pump to ensure the increase the hydrolyzing rate of metal ions present. -
Page 4: Specifications
Titratable acidity (low range): 0.1 mg/L REQUIRED REAGENTS 0.1 meq/L Titratable acidity (high range): Code Description Quantity/Test HI 84430 - 50 Titrant (Low Range) 1 mL 1mg/L HI 84430 - 51 Titrant (High Range) 1 mL 1meq/L HI 84430 - 55M... -
Page 5: Principle Of Operation
) and in a high range (400-4000mg/mL as CaCO Both Strong and Total acidity can be determined by the HI 84430, however the actual sample pH may limit your choice. If the measured pH is lower than 3.7 both total and strong acidity can be determined. -
Page 6: Titrator Startup
5. Functional key area KEYPAD FUNCTION AND INDICATORS 6. Indicates that the displayed value can be changed using ARROW keys 7. Temperature value ( °C, °F 8. pH temperature compensation mode (Manual or Automatic) 9. Stirrer and reading status area PERISTALTIC PUMP Peristaltic pumps are self priming. -
Page 7: Setup Configuration Menu
SETUP CONFIGURATION MENU Calibration timeout Options: Disabled or 1 to 7 days. The titrator’s setup configuration menu may be accessed from the pH or titration screens by pressing the MENU key, then Setup. This option is used to set the number of days before the pH calibration expired warning message is flagged. - Page 8 Time format Use the ARROW keys or in order to Option: AM/PM or 24 hours. increase/decrease the displayed constrast. Press the functional key to select the new value. Press Accept to confirm or ESC to return to the setup menu. Contrast Date format Option: 0 to 20.
- Page 9 Beep On Meter information Press the function key to select the new option. When Press Select to view the firmware version, language enabled, a short beep is heard every time a key is version, mV factory calibration date and time and pressed or when the calibration can be confirmed.
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Page 10: Electrode Preparation
1.68, 4.01 and 8.30 pH. For a single point calibration any of the three buffers may be used, but using 8.30 pH is recommended. Note: The HI 84430 will not accept other pH buffers for calibration. • Pour small quantities of selected buffer solutions into clean beakers. For accurate calibration use two beakers for each buffer solution, the first one for rinsing the electrode and the second one for calibration. - Page 11 • When the reading is stable and close to the selected buffer, the (unstable measurement) • The calibrated value will be shown on the display and the third expected buffer value will be symbol will disappear and the Confirm key will become active. automatically selected.
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Page 12: Ph Buffer Temperature Dependence
• If the measured offset isn’t within the preset limits the meter will display the message “Buffer pH BUFFER TEMPERATURE DEPENDENCE Contaminated” alternatively with ”Electrode Dirty/Broken”. The temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions. -
Page 13: Pump Tube Installation
PUMP TUBE INSTALLATION To mount the new peristaltic pump tube set follow next steps: • Position one peristaltic pump fixing ring on its location. • Stretch the tube over the peristaltic pump rolls. • Attach the second pump fixing ring on its location. •... -
Page 14: Pump Calibration Procedure
Verify: The electrode has been calibrated in 8.30 pH buffer. The next screen will be displayed. • Sample preparation: Precisely measure the amount of HI 84430-55 Pump Calibration Solution as indicated below and add to a clean beaker: Low Range (Strong LR, Total LR) - 2 ml... -
Page 15: Titration Procedure
(4-5) of an additional reagent (HI 84430-58) in order to increase the rate of • If the calibration doesn’t complete within 6 minutes the error message “Too much hydrolysis at the metal ions present. Boil the standard”... - Page 16 Note: If the end-point is not reached or it is not recognized or the input reading is out of range, • From the titrator main screen press Titration. To enter titrator main screen from pH meter an error message will be displayed. The titration can be restarted after a new sample is mode press Titrator and then Titration.
- Page 17 TITRATOR GLP INFORMATION Press Delete to enter record deleting mode. Press Delete All to enter all records deleting mode. Press MENU while in Titration mode and then GLP. Press More to view more information. From this screen it is possible to select between viewing the electrode GLP or the pump GLP. Press GLP elec.
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Page 18: Ph Measurement
Allow time for the electrode to stabilize. When the reading becomes stable the (unstable measurement) symbol will disappear. The HI 84430 may be used as a pH meter for direct measurements. Verify that the instrument has been calibrated before taking pH measurements. Set the instrument to pH meter. - Page 19 If Delete All was pressed the instrument will ask for confirmation. VIEW/DELETE RECORDED pH DATA To view or delete previously logged pH records press MENU key while in pH meter screen. Press Confirm to delete all records or ESC to return to the previous screen without deleting. If the pH log is empty the message “No Records!”...
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Page 20: Temperature Calibration Procedure (For Technical Personnel Only)
TEMPERATURE CALIBRATION PROCEDURE • Immerse the temperature probe in the second vessel as near as possible to the reference (for technical personnel only) thermometer. Allow a few seconds for the probe to stabilize. All the instruments are factory calibrated for temperature. •... -
Page 21: Pc Interface
Requests the instrument model name and firmware code (20 chars). port of your PC. Requests te calibration data record. If you are not using Hanna Instruments HI 92000 software, please see the following instructions. The answer string contains: -GLP status (1 char): represents a 4 bit hexadecimal enconding. - Page 22 Requests the setup parameters setting. -Overrage for the measured value: R-in range, O-over range, U-under range. The answer string contains: -Measured value (7 chars): for the pH meter log this is the measured pH value; for the titrator log this is the concentration value -Instrument ID (4 chars) -Temperature reading, with two decimal points (7 chars) (only for pH meter log) -Calibration alarm time out (2 chars)
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Page 23: Troubleshooting Guide
TROUBLESHOOTING GUIDE r t i ) t i . t f l l i l l i E " " x l l i l l i i s r l i f i t c . f f ELECTRODE CONDITIONING AND MAINTENANCE i t c . -
Page 24: Accessories
ACCESSORIES WARRANTY HI 84430 is warranteed for two years against defects in workmanship and materials when used for its REAGENTS intended purpose and maintained according to the instructions. HI 84430-50 Titrant solution for low range (100mL) This warranty is limited to repair or replacement free of charge. - Page 25 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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