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Summary of Contents for Hanna Instruments HI 96750
- Page 1 Instruction Manual HI 96750 Potassium LR and MR ISM w w w . h a n n a i n s t . c o m contact: www.ponpe.com sale@ponpe.com...
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Page 2: Table Of Contents
BATTERY MANAGEMENT ....................21 BATTERY REPLACEMENT ....................22 ACCESSORIES ........................22 WARRANTY ........................23 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. contact: www.ponpe.com sale@ponpe.com... -
Page 3: 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 96750 Ion Selective Meter is supplied complete with: • Two Sample Cuvettes and Caps • CAL CHECK standard cuvettes •... -
Page 4: General Description
The cuvette is made from special optical glass to obtain best results. The HI 96750 meter measures the potassium (K) content in water samples in the 0.0 to 10.0 mg/L (ppm) for low range and 10 to 100 mg/L (ppm) for medium range. Tetraphenylborate Method. -
Page 5: Specifications
SPECIFICATIONS Range 0.0 to 10.0 mg/L LR 10 to 100 mg/L MR Resolution 0.1 mg/L LR 1 mg/L MR Accuracy LR: ±1.5 mg/L ±7% of reading @ 25°C MR: ±15 mg/L ±7% of reading @ 25°C (excluding dilution error) Typical EMC Deviation ±0.1 mg/L LR ±1 mg/L MR Light Emitting Diode Light Source... -
Page 6: Principle Of Operation
The optical system of Hanna's HI 96750 colorimeter is based on special LED and narrow-band interference filters to guarantee both high performance and reliable results. -
Page 7: Functional Description
A microprocessor controlled special LED emits radiation which is first optically conditioned and beamed to the sample contained in the cuvette. The optical path is fixed by the diameter of the cuvette. Then the light is spectrally filtered to a narrow spectral bandwidth, to obtain a light beam of intensity I or I. - Page 8 KEYPAD DESCRIPTION • ON/OFF: to turn the meter on and off. • ZERO/CFM: to zero the meter prior to measurement, to confirm edited values or to confirm factory calibration restore. • READ/ /TIMER: this is a multi-functional key. In measurement mode , press to make a measurement, or press and hold for three seconds to start a pre-programmed countdown prior to measurement.
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Page 9: Errors And Warnings
ERRORS AND WARNINGS The instrument shows clear messages when erroneous condition appears. Messages are also displayed when the obtained values are outside expected range. The beeper is playing a beep on errors. a) on zero reading Light High: There is too much light to perform a measurement. Please check the preparation of the zero cuvette. - Page 10 Under range: A blinking “0.0” indicates that the sample absorbs less light than the zero reference. Check the procedure and make sure you use the same cuvette for reference (zero) and measurement. Over Range: A flashing value of the maximum concentration indicates an over range condition.
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Page 11: General Tips For An Accurate Measurement
Battery low: The battery must be replaced soon. Dead battery: This indicates that the battery is dead and must be replaced. Once this indication is displayed, the meter will lock up. Change the battery and restart the meter. GENERAL TIPS FOR AN ACCURATE MEASUREMENT The instructions listed below should be carefully followed during testing to ensure best accuracy. -
Page 12: Startup
• Proper use of dropper: (a) to get good reproducible results, tap the dropper on the table for several times and wipe the outside of the dropper with a cloth. (b) always keep the dropper bottle in a vertical position while dosing the reagent. •... -
Page 13: Range Selection
RANGE SELECTION The HI 96750 can measure Potassium LR when range P1 is selected, Potassium MR when range P2 is selected. To change the active range follow the procedure: • Turn the meter on by pressing ON/OFF. The display briefly shows all tags on. - Page 14 • Fill the cuvette with 10 mL of unreacted sample, up to the mark, and replace the cap. • Add six drops of HI 93750A-0, replace the cap and swirl the solution. • Place the cuvette into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove.
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Page 15: Validation Procedure
• If the analysis result is over the method range, the sample should be diluted. • Use the syringe to measure 10mL of sample. • To measure exactly 10 mL of sample with the 5 mL syringe, push the plunger completely into the syringe and insert the tip into the sample. - Page 16 LCD displays dashes, the meter is ready. Note: • Place the CAL CHECK Standard HI 96750-11 Cuvette A into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. • Press ZERO/CFM and the lamp, cuvette...
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Page 17: Calibration Procedure
“ZERO” asks for instrument zeroing. • Place the CAL CHECK Standard HI 96750-11 Cuvette A into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. • Press ZERO/CFM and the lamp, cuvette... - Page 18 If the display shows “STD LOW”, the standard value was too low. Verify that both CAL CHECK Standards HI 96750-11 Cuvettes, A and B are free from fingerprints or dirt and that they are inserted correctly.
- Page 19 DATE INPUT • Press RANGE/GLP/ to edit the desired year (2000-2099). If the key is kept pressed, the year number is automatically increased. • When the correct year has been set, press ZERO/CFM or READ/ /TIMER to confirm. Now the display will show the month blinking.
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Page 20: Glp
• The instrument will return automatically to measurement mode by displaying dashes on the LCD. In the GLP mode, the last user calibration date can be consulted and the factory calibration can be restored. LAST CALIBRATION DATE To display the calibration date: •... -
Page 21: Battery Management
• Press READ/ /TIMER to enter in the factory calibration restore screen. The instrument asks for confirmation of user calibration delete. • Press ZERO/CFM to restore the factory calibration or press RANGE/GLP/ again to abort factory calibration restore. • The instrument briefly notifies “done” when restores factory calibration and returns to measurement mode . -
Page 22: Battery Replacement
Reagents for 300 tests HI 93750-03 OTHER ACCESORIES OTHER ACCESORIES OTHER ACCESORIES OTHER ACCESORIES OTHER ACCESORIES HI 96750-11 CAL CHECK Standard Cuvettes (1 set) HI 721310 9V battery (10 pcs.) HI 731318 Cloth for wiping cuvettes (4 pcs.) HI 731331 Glass cuvettes (4 pcs.) -
Page 23: Warranty
WARRANTY HI 96750 is warranted for two years against defects in workmanship and materials when used for its intended purpose and maintained according to the instructions. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. - Page 24 Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.com Local Sales and Customer Service Office Printed in EUROPE MAN96750 01/11...
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