Related Manuals for Hanna Instruments HI 95715
Summary of Contents for Hanna Instruments HI 95715
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Page 1: Instruction Manual
Instruction Manual HI 95715 Ammonia Medium Range ISM This Instrument is in w w w . h a n n a i n s t . c o m Compliance with the CE Directives... -
Page 2: Table Of Contents
ACCESSORIES ......................... 18 CE DECLARATION OF CONFORMITY ..................19 WARRANTY ......................... 19 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 95715 Ion Selective Meter is supplied complete with: • Two Sample Cuvets and Caps •... -
Page 4: General Description
GENERAL DESCRIPTION The HI 95715 is an auto diagnostic portable microprocessor meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has the advanced optical system based on a LED light source and a narrow band interference filter that allows most accurate and repeatable readings. -
Page 5: Specifications
SPECIFICATIONS Range 0.00 to 9.99 mg/L (as NH Resolution 0.01 mg/L for measurement 0.1 mg/L for calibration and validation Precision ±0.12 mg/L @ 6.00 mg/L Typical EMC Deviation ±0.01 mg/L Light Source Light Emitting Diode with narrow band interference filter @ 466 nm Light Detector Silicon Photocell Method... -
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: -log I/I... -
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 or I. - Page 8 KEYPAD DESCRIPTION • ON/OFF: to turn the meter on and off. • ZERO: to zero the meter prior to measurement. • READ/TIMER: this is a bi-functional key, just press for making a measurement, or hold the key for 3 seconds to start a pre-programmed countdown prior to measurement. •...
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Page 9: Guide To Display Codes
GUIDE TO DISPLAY CODES This prompt appears for 1 second each time the instrument is turned on. This indicates that the meter is in a ready state and zeroing can be performed. Sampling in Progress. This flashing prompt appears each time the meter is performing a measurement. - Page 10 The flashing digits indicate that: 1) the month can be set 2) the day can be set “Storage”: this prompt appears for 1 second at the end of the calibration procedure, to indicate that the calibration data has been stored. “Error”: the concentration of the calibration solution used is not correct.
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Page 11: General Tips For An Accurate Measurement
Under range. A blinking "0.00" indicates that the sample absorbs less light than the zero reference. Check the procedure and make sure you use the same cuvet for reference (zero) and measurement. A flashing value of the maximum concentration indicates an over range condition. - Page 12 • It is important that the sample does not contain any debris. This would corrupt the reading. • In order to avoid reagent leaking and to obtain more accurate measurements, it s recommended to close the cuvet first with the supplied HDPE plastic stopper and then with the black cap.
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Page 13: Measurement Procedure
MEASUREMENT PROCEDURE Turn the meter on by pressing ON/OFF and follow instruction manual to perform either the MEASUREMENT, VALIDATION or CALIBRATION PROCEDURE. MEASUREMENT PROCEDURE • Turn the meter on by pressing ON/OFF. • When the LCD displays “715”, it is ready. •... - Page 14 • Replace the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove. • Hold READ/TIMER for three seconds. display will show the countdown prior to measurement. Alternatively, wait for 3 minutes and 30 seconds and just press READ/TIMER.
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Page 15: Validation Procedure
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 Hanna CAL CHECK Standards, otherwise erroneous results will be obtained. For accurate Validation and Calibration, please perform test at room temperature: 18 to 25°C (64.5 to 77.0°F). -
Page 16: Calibration Procedure
CALIBRATION PROCEDURE Note: it is possible to interrupt calibration procedure at any time by pressing ON/OFF. Warning: do not validate or calibrate the instrument with standard solutions other than the Hanna CAL CHECK Standards, otherwise erroneous results will be obtained. For accurate Validation and Calibration, please perform test at room temperature: 18 to 25°C (64.5 to 77.0°F). - Page 17 • Press READ/TIMER and “SIP” will blink during measurement. • The instrument will show for three seconds the Cal Check standard value. Then the date of last calibration (e.g.: “01.08”) appears on the display, or “01.01” if the factory calibration was selected. In both cases the number of the month is blinking, ready for date input.
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Page 18: Battery Replacement
FACTORY CALIBRATION RESET It is possible to restore factory calibration: • Enter the calibration mode by holding CAL CHECK for three seconds. • Hold ZERO for 10 seconds. The display will show for 2 seconds “F.CAL” and "715" appears. The factory calibration is automatically restored and the instrument is ready for measurement. -
Page 19: Ce Declaration Of Conformity
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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