User Guide

ManualsBrandsHanna Instruments ManualsMeasuring instrumentsHI 98401

Instruction Manual

HI 98401

Microprocessor-based

Portable Fluoride Meter

Manufacturers since 1978

These Instruments are in

Compliance with the CE Directives

TABLE OF CONTENTSTABLE OF CONTENTS

TABLE OF CONTENTS

PRELIMINARY EXAMINATION .................................................................. 3

GENERAL DESCRIPTION .......................................................................... 3

FUNCTIONAL DESCRIPTION..................................................................... 4

SPECIFICATIONS..................................................................................... 5

OPERATIONAL GUIDE.............................................................................. 6

CALIBRATION ......................................................................................... 8

TEMPERATURE CALIBRATION ................................................................ 10

ELECTRODE MAINTENANCE ................................................................... 12

BATTERY REPLACEMENT ....................................................................... 13

ACCESSORIES....................................................................................... 14

WARRANTY .......................................................................................... 15

CE DECLARATION OF CONFORMITY........................................................ 15

Dear Customer,

Thank you for choosing a Hanna product.

Please read this instruction manual carefully before using the meter.

This manual will provide you with the necessary information for a

correct use of the instrument, as well as a more precise idea of its

versatility. If you need additional technical information, do not hesi-

tate to e-mail us at tech@hannainst.com.

These instruments are in compliance with the

directives

EN 50081-1 and EN 50082-1.

Hanna Instruments reserves the right to modify the design, construc-

tion and appearance of its products without advance notice.

Summary of content (8 pages)

PAGE 1
Instruction Manual HI 98401 Microprocessor-based Portable Fluoride Meter Dear Customer, Thank you for choosing a Hanna product. Please read this instruction manual carefully before using the meter. This manual will provide you with the necessary information for a correct use of the instrument, as well as a more precise idea of its versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.
PAGE 2
PRELIMINARY EXAMINATION FUNCTIONAL DESCRIPTION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, notify your Dealer or the nearest Hanna office immediately. Each meter is supplied with: • AA type battery (4 pcs) • Rugged carrying case • Instruction manual Note: Save all packing materials until you are sure that the instrument functions correctly.
PAGE 3
SPECIFICATIONS F - 0.050 to 0.500 ppm 0.50 to 5.00 ppm 5.0 to 50.0 ppm 50 to 500 ppm 0.50 to 1.90 g/L Temp. 0.0 to 50.0 °C Resolution F - 0.001 ppm 0.01 ppm 0.1 ppm 1 ppm 0.01 g/L Temp. 0.1 °C Accuracy F - ±5% of reading or ±0.02 ppm (whichever greater) with less than ±3°C difference from calibration temperature; or ±10% of reading or ±0.02 ppm (whichever greater) with temp. difference greater than ±3°C Temp. ±0.5 °C EMC F - ± 2% f.s. Deviation Temp. ±0.
PAGE 4
• Wait until the display stabilizes (about 10-15 minutes). The fluoride ion concentration and the temperature will be displayed on the upper and lower displays, respectively. CALIBRATION Note: It is recommended to mix the sample during the measurement, using a magnetic stirrer set at around 100 rpm. MAGNETIC STIRRER HI 190M POWER ON OFF MAX SPEED Note: If the temperature probe is not connected, the meter will naturally not compensate for the temperature variance.
PAGE 5
• Immerse the fluoride and the reference electrode as well as the temperature probe to a depth of at least 1 cm (½”) in the prepared buffer solution. Make sure that the electrodes are not touching the bottom of the beaker. Immerse the temperature probe close to the tip of the other electrodes. • Press CAL. The display will show “CAL” and “BUF” together with an intermittent “~” symbol. The upper display will show the calibration point (100 ppm) with the temperature of the solution shown on the lower LCD.
PAGE 6
• When CON appears on the display it means that the value has been recognized and the reading is stable. Press CFM to confirm. Nota: If the reading of the instrument is too far from the expected value (in this case 0.0°C), the " " symbol starts blinking to advise of an error. In this case verify if the temperature of the bath is correct (for best results, use a stirrer to agitate a solution of ice and water), and if the probe is functioning properly.
PAGE 7
Oil and fat: Rinse the electrode with the HI 7077 or HI 8077 Cleaning Solution. FLUORIDE ELECTRODE CLEANING General Rinse the fluoride electrode with deionized water. Protein, oil Clean the tip of the electrode with a cotton wool and fat soaked in alcohol. Afterwards rinse with deionized water. IMPORTANT: After cleaning, rinse the fluoride electrode well with deionized water and dry it attentively with a nonabrasive cloth.
PAGE 8
WARRANTY HANNA LITERATURE All Hanna Instruments meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The electrodes and the probes are warranted for a period of six months. 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.