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Summary of Contents for Hanna Instruments HI 95729C
- Page 1 Instruction Manual HI 95729C Fluoride Low Range ISM This Instrument is in w w w . h a n n a i n s t . c o m Compliance with CE Directives...
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Page 2: Table Of Contents
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 3: Preliminary Examination
PRELIMINARY EXAMINATION FACTORY CALIBRATION RESET It is possible to restore factory calibration: • Enter the calibration mode by holding CAL CHECK Please examine this product carefully. Make sure that the instrument is not damaged. If any for three seconds. damage occurred during shipment, please notify your Dealer. Each HI 95729 Ion Selective Meter is supplied complete with: •... -
Page 4: General Description
GENERAL DESCRIPTION • Press READ/TIMER and “SIP” will blink during measurement. The HI 95729 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 special tungsten lamp and a narrow band interference filter that allows most •... -
Page 5: Specifications
CALIBRATION PROCEDURE SPECIFICATIONS Range 0.00 to 2.00 mg/L Note it is possible to interrupt calibration procedure at any time by pressing ON/OFF. Resolution 0.01 mg/L Warning: do not validate or calibrate the instrument with standard solutions other than the Hanna Precision ±0.03 mg/L @ 1.00 mg/L CAL CHECK... -
Page 6: Principle Of Operation
PRINCIPLE OF OPERATION VALIDATION PROCEDURE Absorption of Light is a typical phenomenon of interaction between electromagnetic radiation and Use the validation procedure to ensure that the instrument is properly calibrated. matter. When a light beam crosses a substance, some of the radiation may be absorbed by Warning: do not validate or calibrate the instrument with standard solutions other than the Hanna atoms, molecules or crystal lattices. -
Page 7: Functional Description
A microprocessor controlled special tungsten lamp emits radiation which is first optically • Replace the cap to the cuvet, and shake gently conditioned and beamed to the sample contained in the cuvet. The optical path is fixed by the a couple of times. diameter of the cuvet. -
Page 8: Guide To Display Codes
KEYPAD DESCRIPTION • Replace the cap to the cuvet, and shake • ON/OFF: to turn the meter on and off. gently a couple of times. • 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. - Page 9 • Do not let the reacted sample stand too long after reagent is added, or accuracy will be lost. This indicates that the meter is in a zeroed state and measurement can be performed. • It is possible to take multiple readings in a row, but it is recommended to take a new zero reading for each sample and to use the same cuvet for zeroing and measurement use the same cuvet for zeroing and measurement use the same cuvet for zeroing and measurement...
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Page 10: General Tips For An Accurate Measurement
GENERAL TIPS FOR AN ACCURATE MEASUREMENT ERROR MESSAGES a) on zero reading The instructions listed below should be carefully followed during testing to ensure best accuracy. This indicates that the zeroing procedure failed due to a low signal- to-noise ratio. In this case press ZERO again. •...
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