Related Manuals for Hanna Instruments HI 96770C
Summary of Contents for Hanna Instruments HI 96770C
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Page 1: Instruction Manual
Instruction Manual HI 96770C Silica High Range This Instrument is in w w w . h a n n a i n s t . c o m Compliance with the Directives... -
Page 2: Table Of Contents
GLP ............................20 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. -
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 96770 Ion Selective Meter is supplied complete with: • Two Sample Cuvets and Caps •... -
Page 4: General Description
GENERAL DESCRIPTION The HI 96770 is an auto diagnostic portable microprocessor meter that benefits from ’s HANNA years of experience as a manufacturer of analytical instruments. It has the advanced optical system based on a Light Emitting Diode (LED) and a narrow band interference filter that allows most accurate and repeatable readings. -
Page 5: Specifications
SPECIFICATIONS Range 0 to 200 mg/L Resolution 1 mg/L Precision ±5 mg/L @ 100 mg/L Typical EMC Deviation ±1 mg/L Light Source Light Emitting Diode Light Detector Silicon Photocell with narrow band interference filter @ 466 nm. Method Adaptation of the USEPA METHOD 370.1 for to drinking, surface and saline waters, domestic and industrial wastes and Standard Method 4500-SiO C. -
Page 6: Principle Of Operation
PRINCIPLE OF OPERATION Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and matter. When a light beam crosses a substance, some of the radiation may be absorbed by atoms, molecules or crystal lattices. If pure absorption occurs, the fraction of light absorbed depends both on the optical path length through the matter and on the physical-chemical characteristics of the substance according to the Lambert- Beer Law: = ε... -
Page 7: Functional Description
A microprocessor controlled LED emits radiation which is first optically conditioned and beamed to the sample contained in the cuvet. The optical path is fixed by the diameter of the cuvet. 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.
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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 cuvet. - Page 10 Over Range: A flashing value of the maximum concentration indicates an over range condition. The concentration of the sample is beyond the programmed range: dilute the sample and re-run the test. c) during calibration procedure Standard Low: The standard reading is out of range. Standard High: The standard reading is out of range.
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Page 11: General Tips For An Accurate Measurement
GENERAL TIPS FOR AN ACCURATE MEASUREMENT The instructions listed below should be carefully followed during testing to ensure best accuracy. • For a correct filling of the cuvet: the liquid in the cuvet forms a concavity on the top; the bottom of this concavity must be at the same level of the 10 mL mark. -
Page 12: Startup
START UP Prepare the instrument for measurement as follows: • Unpack the instrument by removing the cuvet holder protection from the instrument cuvet holder. • Place the battery in the instrument as described in the “BATTERY REPLACEMENT” chapter (see pag.22). •... - Page 13 • Press ZERO/CFM and the instrument status indicator will appear, depending on the measurement phase. • After a few seconds, the display will show “-0.0-”. The meter is now zeroed and ready for measurement. • Remove the cuvet. • Add the content of one packet of HI 96770A-0 Silica HR reagent A and shake until complete dissolution.
- Page 14 • Remove the cap. • Add the content of one packet of HI 96770C-0 Silica HR reagent C and shake vigorously until complete dissolution. • Replace the cuvet into the cuvet holder and ensure that the notch on the cap is positioned securely into the groove.
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Page 15: Validation Procedure
INTERFERENCES • Iron (Fe and Fe ) interferes at high levels. • Sulfide (S ) interferes at high levels. • Phosphates does not interfere up to 50 mg/L PO VALIDATION PROCEDURE Use the validation procedure to ensure that the instrument is properly calibrated. Warning: do not validate or calibrate the instrument with standard solutions other than the CAL CHECK™... - Page 16 • After a few seconds, the display will show “-0.0-”. The meter is now zeroed and ready for validation. • Remove the cuvet. • Place the CAL CHECK™ Standard HI 96770-11 Cuvet B into the cuvet holder and ensure that the notch on the cap is positioned securely into the groove.
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Page 17: Calibration Procedure
CALIBRATION PROCEDURE Note: It is possible to interrupt calibration procedure at any time by pressing CAL CHECK or ON/OFF. Warning: Do not calibrate the instrument with standard solutions other than the HANNA CAL CHECK™ Standards, otherwise erroneous results will be obtained. For accurate Validation and Calibration results, please perform test at room temperature: 18 to 25°C (64.5 to 77.0°F) •... - Page 18 • After a few seconds the display will show “-0.0-”. The meter is now zeroed and ready for calibration. • Remove the cuvet. • Place the CAL CHECK™ Standard HI 96770-11 Cuvet B into the cuvet holder and ensure that the notch on the cap is positioned securely into the groove.
- Page 19 DATE INPUT • Press 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
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: • Press GLP/ to enter GLP mode. The calibration month and day will appear on the main display and the year on the secondary display. -
Page 21: Battery Management
• The instrument briefly notifies “done” when restores factory calibration and returns to measurement mode. BATTERY MANAGEMENT To save battery, the instrument shuts down after 10 minutes of non-use in measurement mode and after 1 hour of non-use in calibration mode. If a valid measurement was displayed before auto-shut off, the value is displayed when the instrument is switched on. -
Page 22: Battery Replacement
BATTERY REPLACEMENT To replace the instrument’s battery, follow the steps: • Turn the instrument off by pressing ON/OFF. • Turn the instrument upside down and remove the battery cover by turning it counterclockwise. • Extract the battery from its location and replace it with a fresh one. •... -
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.
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